Sti Metric Dimsec

March 18, 2018 | Author: rondavis2 | Category: Welding, Mechanical Engineering, Nature


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HSSMetric Dimensions and Sections Properties HSS Manufacturing Methods The transformation of steel strip into hollow structural sections (HSS) is the result of operations including forming, welding and sizing. Currently three methods are being used in North America for the manufacture of HSS. These methods, including two ERW methods and an SAW method, are described below. Both ERW methods meet ASTM A 500 and CSA G-40.21 requirements for the manufacture of HSS, and the ERW sizes included in this publication may be produced to either standard. The SAW method is not included as a manufacturing process in the ASTM or CSA specification. SAW sizes listed in this publication can be specified to meet desired physical and dimensional criteria of ASTM A500 and CSA G-40.21 Electric Resistance Welding (ERW) Process In the tube mill, flat steel strip (1) is formed continuously around its longitudinal axis to produce a round tube. This is done by moving the strip through a progressive set of rolls (2-6). The strip edges (7) are heated by either high frequency induction or contact welding and then forged together by weld rolls to create a continuous longitudinal weld without the addition of filler metal. The weld seam (8) is then cooled and processed through a set of sizing/shaping rolls which cold-form it into a round (9), square (10) or rectangular (11) section. 5 6 7 4 3 2 1 8 9 Form-Square Weld-Square (ERW) Process In the weld mill, driven forming dies progressively shape the flat strip (1) by forming the top two corners (2) of the square or rectangular tube in the initial forming station. Subsequent stations form the bottom two corners (3) of the shape. No cold working of the sides of the shape is performed, and the shape’s seam is welded by high-frequency contacts when the tube is near its final shape and size. The welded tube (4) is cooled and then driven through a series of sizing stations which qualifies the tube’s final dimensions. 10 11 4 1 2 3 3 Submerged Arc Weld (SAW) Process Two identical pieces of flat strip (1) are placed in a press brake and formed into two identical halves (2) of a finished tube size. A backup bar is tack welded to each leg of one of the half-sections (3). The two halfsections are fitted together toe-to-toe (4) and welded by the submerged arc process to complete the square or rectangular section (5). 2 5 1 2 3 4 2 1 1 this information should not be used or relied upon for any specific application without competent professional examination and verification of its accuracy. the design wall thickness. Wall thickness. The information presented in this publication has been prepared in accordance with recognized engineering principles and is for general information only. that this information is suitable for any general or particular use or of freedom from infringement of any patent or patents.0 times the design wall thickness. *. The section property data for rectangular and square SAW HSS are based upon outside corner radii equal to 3.The Institute bears no responsibility for such material other than to refer to it and incorporate it by reference at the time of the initial publication of this edition. customary sizes of rectangular. suitability. width and depth of rectangular and square HSS. The SAW method is not included as a manufacturing process in the ASTM or CSA specifications. for ERW HSS is equal to 0. after the nominal wall thickness. The design wall thickness. The design wall thickness for each HSS size is included in the tabulated data. Refer to HSS Manufacturing Methods described on the inside front cover of this publication. This is consistent with similar section property information published for hot rolled structural shapes and the manufacturing tolerances associated with those products.0 times the design wall thickness for 3/8 and 1/2 inch nominal wall thicknesses and 3. The section property data for rectangular and square ERW HSS are based upon outside corner radii equal to 2. t. t.The publication of the material contained herein is not intended as a representation or warranty on the part of The Steel Tube Institute of North America or of any other person named herein. “Designs for the 21st Century” iv . and applicability by a licensed professional engineer. This publication presents SI dimensions and section properties for U. or architect.. SAW sizes listed in this publication can be specified to meet desired physical and dimensional criteria of ASTM A500 or CSA G-40. The conversion factor is 1 inch equals 25. SAW HSS sizes are indicated in the tables with an asterisk. designer.4 millimeters exactly.93 times the nominal wall thickness. results in variations in the published area data that do not exceed 3. See. General availability information for each size of HSS is contained in the Steel Tube Institute’s companion publication “Principal Producers and Capabilities”.6 times the design wall thickness for 5/8 inch nominal wall thickness. engineers and fabricators are increasingly being required to specify SI (metric) information for products used in construction applications.S. Caution must be exercised when relying upon other specifications and codes developed by other bodies and incorporated by reference herein since such material may be modified or amended from time to time subsequent to the printing of this edition. and outside diameter of round HSS have converted to SI units and rounded to the nearest one-tenth of a millimeter. Section property data based upon the design wall thickness. is equal to the nominal wall thickness.FOREWORD The International System of units (System International or ‘SI’) has been adopted as the preferred system of measurement in the United States.Anyone making use of this information assumes all liability arising from such use. Customary Units to Metric (SI) Units”. Section property data are based upon the design wall thickness. As a result. architects. the Steel Tube Institute’s publication “Recommendations for Soft Conversion of HSS Sizes from U. All section property data have been calculated using these converted values. This method is typically used to manufacture HSS sizes that are larger than the maximum 64-inch periphery defined in ASTM A500.2l. also. For SAW HSS.S. t. square and round Hollow Structural Sections (HSS) manufactured by the electric-resistance welding (ERW) process and the submerged arc welding (SAW) process.While it is believed to be accurate.50% of the area data based upon the minimum permissible wall thickness stipulated in ASTM A500. ..TABLE OF CONTENTS PAGE Dimensions and Section Properties of Rectangular HSS ......................................19 NOMENCLATURE b C D h I Ix Iy J r rx ry S Sx Sy t Z Zx Zy Nominal width minus 3 times the design wall thickness................................................................................................................... t (mm) Moment of inertia of cross-section (mm4) Moment of inertia of cross-section about the X-X axis (mm4) Moment of inertia of cross-section about the Y-Y axis (mm4) Torsional stiffness constant of cross-section (mm4) Governing radius of gyration (mm) Radius of gyration with respect to the X-X axis (mm) Radius of gyration with respect to the Y-Y axis (mm) Elastic section modulus (mm3) Elastic section modulus about the X-X axis (mm3) Elastic section modulus about the Y-Y axis (mm3) Design wall thickness (mm) Plastic section modulus (mm3) Plastic section modulus about the X-X axis (mm3) Plastic section modulus about the Y-Y axis (mm3) v .6 Dimensions and Section Properties of Square HSS .............................................................................14 Dimensions and Section Properties of Round HSS ............. t (mm) Torsional shear constant of cross-section (mm3) Outside diameter of round HSS (mm) Nominal depth minus 3 times the design wall thickness............................................................ 86 1.5 35.8 x 609.73 1.4 0.2 x 15.8 x 15.88 20 x 16 x 5/8 * 508.Metric Dimensions and Section Properties of Rectangular HSS Nominal Size US Customary SI / Metric Inches Millimeters Design Mass Weight Wall Per Per Thickness Meter Meter t b/t kg kN X-X Axis h/t mm Y X Y Y-Y Axis Area Ix / 106 Sx / 103 rx mm2 mm4 mm mm3 mm4 mm3 mm mm3 Zx / 103 Iy / 106 Sy / 103 X ry Torsional Torsional Surface Stiffness Shear Area Constant Constant Per Zy / 103 J / 103 C / 103 Meter mm3 mm4 mm3 m2 32 x 24 x 5/8* 812.874 15.0 61.7* 171.5 1.4 2.983 3/8* 9.8 28.6 19600 15900 12100 10200 600 496 387 327 2360 1950 1520 1290 175 177 179 179 3040 2480 1920 1620 141 1390 118 1160 92.2 2.0 32200 2480 71.7* 182.7 9.75 2.2 44.7* 242.0 x 457.9 28300 1080 37.4 1.1 65.9 1.2 22.58 2.24 2.0 x 406.9 12.8 31.8 2.5 1.4 x 15.5 28.5* 183.49 24 x 22 x 5/8* 609.0 25800 1230 55.7* 273.4 x 609.8 8.9 12.1 42900 4120 10100 61.5 35.8 35.7 3/8 9.78 2.7 9.9 3.2 3.354 15.7 9.181 1/2* 12.4 1010 88.7 9.9 40.1 1.613 12.9 12.1 41.9* 247.0 55.5 16600 982 827 640 3870 3250 2520 192 4640 194 3860 196 2960 700 589 456 3440 2900 2250 162 4000 164 3320 166 2550 1290000 1060000 818000 6040 4930 3750 1.3 40.6 23500 18300 13900 11700 786 644 500 422 3090 2530 1970 1660 183 188 189 190 3850 3080 2370 1990 360 293 228 193 2360 1920 1500 1270 124 127 128 129 2720 2170 1670 1410 791000 613000 477000 404000 4450 3420 2630 2200 1.0 61.4 16.3 45.9 41300 3530 57.1 2.5 22.0 34800 3400 8360 82.9* 311.182 3/8* 9.40 20 x 8 x 5/8 1/2 3/8 5/16 184.2 25300 2230 9280 7660 5860 293 11000 295 8980 297 6830 2520 2080 1590 8270 6830 5230 247 9440 249 7730 251 5880 4590000 3720000 2840000 14000 11300 8570 2.678 3/8* 9.143 0.59 26 x 24 x 5/8* 660.2 38.53 1.057 1/2* 12.2 41.430 1/2* 12.5 32.29 22 x 20 x 5/8* 558.44 2.503 15.9 7.8 11.9* 323.8 1.9* 209.5 17600 700 4250 3570 2760 195 5040 198 4180 199 3200 920 772 597 4030 3380 2610 180 4690 183 3890 184 2980 1560000 1280000 986000 6840 5570 4230 1.9 164.27 2.2 1.1 31600 1470 41.0 0.6 x 558.07 2.7* 263.8 24.68 2.8 914 78.9 12.80 30 x 24 x 5/8* 762.6 x 15.37 1.9* 273.995 7.9 37.5 1.8 33.83 1.5* 153.2 28.0 x 609.0 61.2 21500 1250 6400 5320 4090 237 7520 239 6190 241 4720 1710 1420 1090 6130 5090 3910 222 7090 224 5840 226 4460 2850000 2320000 1780000 10200 8260 6250 2.651 15.1 54.5 31.8 x 508.800 15.39 1.5 5/16 7.7 9.1 65.833 14.7 9.784 3/8* 9.0 61.60 508.9 26700 37.3 2.9 12.08 20 x 18 x 5/8* 508.8 1580 86.5 101.3 34800 1950 45.7 39600 3000 53.7 2.6 x 15.9 24300 1900 8450 6990 5350 275 9930 278 8150 280 6200 2380 1970 1510 7810 6450 4940 245 8960 247 7350 249 5590 4140000 3360000 2560000 13100 10600 7990 2.3 45.64 2.9 7.59 1.9* 336.9* 222.679 1/2* 12.6 x 15.0 1.5* 130.685 3/8* 9.5 32.9 12.6 * This size produced by the submerged arc weld (SAW) process 6 .3 45.0 x 304.579 3/8* 9.7 116.76 1.6 x 15.480 3/8* 9.9 12.04 2.7 14.2 x 15.9 85.0 x 203.0 33500 2920 77.0 28300 1620 61.0 50.309 9.5* 191.6 3.9 777 84.1 28.54 2.6 26300 2600 6390 310 12000 313 9850 314 7490 2660 2200 1680 8740 7210 5510 249 9920 251 8120 253 6170 5050000 4090000 3120000 15000 12100 9150 2.957 15.7 133.1 853 357000 298000 235000 200000 2740 2240 1720 1450 1.9 12.5 1.8 2.4 10.0 21900 50.5 35.5* 198.808 1.1 54.0 x 15.0 39.5 2.928 1/2* 12.508 1.0 30900 2090 66.7* 222.8 19500 947 5270 4400 3390 216 6220 218 5140 220 3930 1280 1060 820 5020 4190 3230 201 5830 203 4820 205 3680 2140000 1750000 1340000 8430 6850 5190 2.0 2.47 2.5* 206.5 38000 2520 49.3 45.8 x 15.023 15.78 20 x 12 x 5/8* 508.2 19.301 1/2 * 12.6 29.9 11.5 23400 1600 7650 6330 4850 258 8940 260 7350 262 5600 2240 1850 1420 7340 6080 4660 243 8480 245 6960 246 5300 3700000 3010000 2290000 12100 9800 7410 2.2 38.5 2.60 1.0 45.5* 168.0 23200 906 50.5* 138.949 15.2 x 609.7* 252.052 1/2* 12.7 9.1 1.7* 202.280 15.2 48.4 153.7 1.380 3/8* 9.6 97.38 1.2 1.9* 1/2 12.69 28 x 24 x 5/8* 711.5 25.2 1300 87.9 2.8 8.9* 298.7 9.176 1/2* 12.5 35. 3 72.8 8660 74.710 18 x 6 x 5/8 1/2 3/8 5/16 1/4 X Area Ix / 106 Sx / 103 mm 508.110 0.8 11.43 1.0 1.17 1.7 3/8 9.3 72.8 51.2 86.586 0.97 0.19 1.1 25.Metric Dimensions and Section Properties of Rectangular HSS Nominal Size US Customary SI / Metric Inches Millimeters Design Mass Weight Wall Per Per Thickness Meter Meter t b/t h/t Zx / 103 Iy / 106 Sy / 103 Torsional Torsional Surface Stiffness Shear Area Constant Constant Per Zy / 103 J / 103 C / 103 Meter mm2 mm4 mm3 mm mm3 mm4 mm3 mm mm3 mm4 mm3 m2 480 391 338 557 440 375 76200 62200 53800 1050 821 696 1.4 1.99 0.387 3/8* 9.0 29.5 6960 385 320 252 214 174 1680 1400 1100 934 760 152 154 156 157 158 2220 1830 1420 1200 971 159.8 93.6 22.00 1.6 x 254.19 1.8 x 12.912 71.4 16.6 8660 348 274 233 1370 1080 918 161 163 164 1890 1470 1240 18 x 12 x 5/8* 457.9 12.8 27.9 7.26 1.1 113.5 * 92.8 113.8 8.18 1.6 0.9 14.5 16.7 10300 51.2 42.912 0.4 1120 941 745 634 518 396 121 123 125 126 126 127 1460 1210 942 798 647 491 794 661 520 441 359 273 126000 108000 86400 74100 60900 46800 1380 1130 883 746 604 457 0.17 1.8 4340 199 167 132 113 92.9 12.0 15400 34.7 9.5 101.2 18.1 1.6 x 304.3 5770 77.4 38.1 113.580 14.32 1.4 1.4 13500 42.27 14 x 10 x 5/8 1/2 3/8 5/16 1/4 355.5 7.5 7.7 9.9 17.6 x 12.6 43.8 19.9 11.98 0.8 8.7 14.0 1300 84.6 62.5 66.4 11100 42.40 262000 220000 174000 148000 2170 1780 1370 1150 1.0 16600 27.8 8.1 70.364 1.6 835 86.4 5.2 19.1 607 105 1560 1280 998 843 682 320000 267000 211000 179000 146000 2400 1960 1510 1270 1020 1.9 65.6 x 152.586 11.6 8.1 21.4 11800 282 222 1590 1250 135 137 1900 223 1470 175 1460 120 1150 122 1710 1330 387000 302000 2520 1930 1.7 9.6 43.8 24.4 x 101.5 24.1 113.6 649 66.6 x 12.18 1.7 8520 51.39 1.8 8.4 5.8 35.19 1.710 14.2 21.1 7160 57.98 0.99 0.8 11.5 7.4 59.6 31.1 17.18 1.8 31.188 3/8* 9.684 1/2* 12.46 1.7 9.99 1.0 13.8 8.4 x 203.9 * 171.4 4.5 25.110 0.5 7.908 12.9 7.2 38.2 64.3 40.0 x 101.4 5.1 25.1 1.7 31.19 1.9 64.8 11.4 Y rx 113.7 9.4 5.4 7.18 1.1 1.833 15.4 10300 58.8 8.9 37.6 8.8 11.7 40.9 7.364 1.1 0.1 10300 65.3 1070 85.9 4.110 0.38 1.7 1.1 24.8 0.3 706 93.8 x 15.697 0.580 14.846 0.4 0.9 * This size produced by the submerged arc weld (SAW) process 7 65.7 745 1140 64.9 8660 340 283 222 188 1670 1390 1090 925 143 145 146 147 2120 114 1130 1740 95.48 63.1 8660 57.364 14.9 6.9 447 178000 151000 121000 103000 84600 1790 1470 1140 964 779 1.5 7.9 14.2 1.0 13600 27.0 133.3 0.0 71.2 x 15.0 29.9 7.710 0.9 7.7 9.4 10.20 2250 1820 1410 1180 568000 443000 346000 293000 3520 2720 2090 1750 1.7 * 141.7 13500 48.9 7160 189 150 128 931 739 631 131 133 134 1270 990 839 42.697 59.5 7.7 * 121.19 1.5 16.8 31.19 1.2 1.2 22.4 19.0 x 15.1 13500 37.116 0.0 14 x 12 x 1/2* 355.99 11.8 943 1350 75.1 30.7 746 105 857 77.4 59.560 1.1 17.6 21.3 6960 287 238 187 158 129 1610 1340 1050 891 724 131 133 134 135 136 1970 170 1340 101 1620 142 1120 103 1260 111 878 104 1060 94.8 x 15.710 0.2 x 152.3 830 65.057 15.9 7.7 51.9 14.9 44.9 16600 35.3 9.2 22.5 16600 31.4 x 15.7 9.7 9.2 x 304.19 449 357 304 57600 47300 41000 830 653 555 0.0 43.5 * 107.9 6.8 55.4 x 304.9 12.0 864 731 583 499 409 1920 1590 1240 1050 385 314 272 677 575 461 395 325 250 120 123 125 125 61.8 8.0 8520 45.309 0.8 1.2 ry 293 242 189 160 19.0 0.4 10.4 5.4 85.1 13500 54.20 14 x 6 x 5/8 1/2 3/8 5/16 1/4 3/16 355.5 31.4 10.5 5/16 7.0 10300 45.9 12.4 139.1 11100 37.1 13700 606 517 403 2650 2260 1760 166 169 171 3270 326 2750 278 2120 217 457.2 86.110 86.4 42.00 16 x 12 x 5/8* 406.9 7.3 72.0 1000 64.3 9.9 6.5 2140 122 1830 124 1430 126 139.9 7.5 21.480 0.3 550 66.6 22.9 12.0 31.9 16 x 8 x 5/8 1/2 3/8 5/16 406.19 2490 2090 1610 678000 564000 438000 3990 3280 2500 1.2 86.3 44.0 18000 45.8 48.9 X Y-Y Axis kN 20 x 4 x 1/2 3/8 5/16 kg X-X Axis Y 24.846 72.17 1.995 0.9 * 1/2 12.846 0.4 x 15.846 0.8 21900 33.9 20300 15900 12100 10200 453 376 293 248 2230 1850 1440 1220 150 154 155 156 2730 2210 1710 1440 139.5 635 83.1 59.7 44.364 1.9 16 x 4 x 1/2 3/8 5/16 406.2 . 2 x 7.6 10600 102 22.432 36.80 331 289 238 207 172 134 39.9 7.4 5.8 x 76.74 0.00 1.9 18.99 0.9 66.0 345 172000 145000 116000 98600 80700 61800 1600 1320 1020 860 695 525 0.6 0.0 0.0 12100 156 27.9 43.8 0.2 20.812 9.83 1.0 9.7 48.7 14.8 8.5 7.08 1.3 5170 73.1 877 741 589 504 412 316 105 107 109 109 110 111 1130 940 737 625 508 387 44.867 0.86 0.9 7.97 0.6 12100 134 22.355 27.10 14 x 4 x 5/8 1/2 3/8 5/16 1/4 3/16 355.6 x 15.4 403 341 273 233 191 147 44900 39600 32700 28400 23700 18400 733 615 486 413 337 257 0.0 40.3 454 85.2 691 577 455 387 315 240 101000 86800 69900 60000 49400 38000 1170 966 753 637 516 391 0.75 12 x 2 x 1/4 3/16 304.5 0.1 56.8 0.8 11.8 12300 164 1080 31.45 143 4.8 0.6 42.2 0.5 164 135 104 16100 13600 10700 301 247 189 0.89 0.9 53.2 8520 110 719 38.447 8.0 670 572 460 394 325 250 98.0 47.1 17.7 14.2 9430 129 849 38.0 31.86 ry 72.8 0.8 8.623 7.8 x 152.1 5930 4790 158 122 0.3 38.4 5.2 38.2 382 110 112 113 114 115 116 1350 1120 871 737 598 454 87.364 14.2 19.9 7.9 4.0 38.79 0.9 4.7 14.6 8.74 0.9 113.2 17.2 7160 93.2 48.648 6.7 12.3 3970 3000 36.9 0.7 66.4 48.8 58.1 9870 132 37.88 0.8 42.5 16.90 1140 888 750 608 212000 167000 142000 116000 1670 1290 1080 874 1.4 5.4 10.9 4.8 x 254.2 x 15.7 44.9 32.1 43.5 25.1 48.011 9.6 x 101.4 5.0 x 12.912 9.9 6.8 11.3 9.812 9.74 6.326 14.8 14.0 37.1 32.5 0.5 26.330 25.4 3.4 37.9 7.7 5170 62.5 66.1 7.9 54.2 44.3 9.2 38.6 559 84.8 x 50.4 43.9 977 771 656 535 12 x 8 x 5/8 1/2 3/8 5/16 1/4 3/16 304.1 64.4 5.0 31.87 0.9 14.3 3450 38.6 588 116 117 118 119 1290 124 1000 97.5 0.5 31.1 21.9 849 83.6 65.3 0.2 20.8 11.0 340 281 217 99.289 14.8 33.2 10.6 17.4 7.9 .09 1.1 1.116 12.4 10.09 1.270 7.1 100 101 458 374 286 5.0 7620 105 45.713 0.4 43.5 63.9 66.530 45.87 0.80 12 x 3 1/2 x 3/8 5/16 304.1 6410 90.3 5280 4270 3230 51.75 174 37.4 96.98 0.5 31.251 5.5 0.4 3.6 843 83.9 30.9 7.0 0.6 0.4 5.5 22.9 101 102 103 103 83.0 58.8 x 88.76 0.88 0.2 5650 60.1 22.0 660 83.8 9870 113 31.62 94.99 1.8 1.6 x 15.2 6710 70.9 4.7 103.4 72.2 6410 76.9 53.9 59.8 x 6.7 0.7 9.9 5.1 14.88 200 7.00 12 x 6 x 5/8 1/2 3/8 5/16 1/4 3/16 304.5 329 252 1.8 77.8 8.9 7.7 82.8 8.78 0.8 33.76 0.549 0.7 66.3 4340 58.4 54.586 6.7 4570 49.8 24.9 4.6 875 741 592 506 415 318 113 116 118 119 120 121 1200 1000 785 667 542 413 12 x 10 x 1/2 3/8 5/16 1/4 304.7 56.7 6360 89.4 43.1 0.0 0.9 4.3 41.90 12 x 4 x 5/8 1/2 3/8 5/16 1/4 3/16 304.7 231 198 25100 22000 419 357 0.697 7.380 0.69 0.991 12.480 4.8 33.5 78.8 11100 139 910 31.89 0.47 21.623 7.7 93.7 50.8 x 101.4 4.1 0.6 13600 165 1090 22.2 500 66.1 42.0 12.9 101.89 0.8 0.4 8 19.4 613 48.2 63.326 14.525 6.3 688 67.8 31.1 0.1 31.7 82.2 7620 89.1 28.59 121 3.7 5770 76.991 12.8 8.1 0.4 x 15.430 4.8 37.89 0.4 10.5 48.1 41.7 29.5 63.4 5.3 40.4 7.8 44.772 7.1 10.9 63.6 8.4 4.2 7910 110 722 48.8 8680 87.86 0.3 0.6 17.3 1020 81.5 71.0 57.525 6.2 6490 5470 65.5 8.0 427 367 100 101 570 486 8.463 0.2 21.1 17.9 14.6 61.4 7.9 64.530 11.9 6.8 38.1 0.Metric Dimensions and Section Properties of Rectangular HSS Nominal Size US Customary SI / Metric Inches Millimeters Design Mass Weight Wall Per Per Thickness Meter Meter t b/t kg kN X-X Axis h/t mm Y X Y Y-Y Axis Zx / 103 Iy / 106 Sy / 103 X Torsional Torsional Surface Stiffness Shear Area Constant Constant Per Zy / 103 J / 103 C / 103 Meter Area Ix / 106 Sx / 103 rx mm2 mm4 mm3 mm mm3 mm4 mm3 mm mm3 mm4 mm3 m2 387 337 276 239 199 155 468 395 315 269 220 169 55300 48500 39900 34700 28800 22400 863 722 569 484 394 300 0.8 11.79 0.6 8.77 0.76 12 x 3 x 5/16 1/4 3/16 304.4 863 727 577 493 404 309 80.4 43.1 0.5 7.6 0.4 4.70 88.8 41.430 4.8 33.6 22.8 3900 56.9 12.8 x 203.9 5.6 73.6 44.6 583 497 400 343 283 218 60.8 0.3 3900 48.0 237 183 95.9 x 9.9 101.8 33.5 0.2 100 102 103 104 105 912 764 603 513 419 319 16. 8 84.2 175 87.8 3.4 17.9 70.380 0.3 22.5 31.3 97.8 11.463 0.9 7.6 90.79 0.8 x 15.8 24.4 62.8 88.5 31.8 82.4 72.0 5.0 x 152.4 8680 22.5 31.4 5.0 27.7 9.9 25.59 0.1 54.7 389 333 273 210 147 5.9 5.79 0.5 31.5 7.4 4.867 0.4 5.5 37.9 12.8 50.614 0.4 4.1 42.6 10 x 31/2 x 3/16 h/t 9 Zx / 103 Iy / 106 Sy / 103 X 48.9 86.7 4900 4150 3370 2550 29.1 81.437 0.5 88.7 18.7 4570 49.0 47.713 0.8 11.78 0.0 x 203.5 31.2 35.1 17.463 0.401 0.9 25.9 69.1 49.6 224 4.6 92.8 83.9 7.2 54.1 72.0 62.5 31.3 57.8 98.0 12.66 0.4 70.7 87.9 4.8 23.9 6.8 34.8 636 541 433 371 305 235 82.5 6710 31.59 9 x 7 x 5/8 228.9 12.6 87.8 85.8 82.79 0.5 334 287 236 182 1.0 587 493 390 332 271 207 77300 66600 53900 46400 38300 29500 962 797 623 528 428 325 0.8 75.89 0.8 11.1 0.88 0.77 0.7 60.9 x 4.9 12.7 83.9 26.4 43.70 254.90 7.9 660 561 450 385 317 243 89.2 30.6 21.7 43.76 0.9 6.549 0.5 7.4 33.18 136 4.4 10 x 5 x 3/8 5/16 1/4 3/16 254.82 7.6 7.7 61.2 40.0 20.28 96.2 38.7 53.0 94.67 0.9 5650 35.6 x 15.76 1.5 7.3 22.339 0.2 x 12.4 25.9 5.2 18.0 47.9 1/2 12.9 96.2 44.1 54.76 0.58 0.9 1/4 6.7 62.5 14.3 14500 12800 10800 8540 6130 291 250 205 157 110 0.812 0.0 x 76.7 160 138 114 88.3 40.6 48.8 84.7 842 704 555 472 385 293 37.280 0.4 72.7 0.7 3.4 72.2 728 572 485 395 300 110000 88000 75300 61800 47400 1090 845 713 577 436 0.9 7.7 14.4 5.6 25.2 27.3 14.3 31.7 63.85 101 3.73 0.5 0.2 93.289 14.330 0.7 2890 22.7 6710 27.7 9.3 5650 40.512 0.89 0.4 9.2 38.0 3450 72.7 16.8 52.9 94.5 289 250 208 161 114 82.5 34.8 88.1 79.8 8.56 120 3.4 54.4 4.1 8.8 84.7 81.1 54.5 53.2 18.7 31.3 60.4 5.3 0.95 1.9 35.7 9.8 40.7 56.4 85.432 0.7 5360 4530 3670 2780 1920 36.713 0.1 37.9 4.6 8.2 10.9 6.8 24.3 64.525 0.3 9.4 4.0 x 127.18 57.9 7.1 14.5 25.3 662 559 444 379 310 238 13.4 2.78 0.7 42.64 0.370 0.4 10.8 22.4 3/16 4.68 0.1 54.4 88.75 0.9 26.474 0.4 20.04 79.9 4.0 x 50.3 9.5 91.4 11.7 62.5 42.5 7.5 7.9 6.6 8.4 3.5 31.5 83.1 97.7 33.6 22.7 3450 83.5 5/16 7.8 0.74 0.2 10600 18.7 9090 7480 5810 4900 3970 3000 62.1 21.430 0.0 69.7 29.2 793 663 522 444 362 276 86800 74400 60000 51600 42500 32700 1020 843 658 556 451 342 0.0 x 101.58 0.1 54.3 76.74 274 241 199 174 145 113 39.3 40.0 90.87 0.5 550 470 378 324 267 206 ry 68.400 0.2 9.9 7.0 52.1 23.67 10 x 3 x 3/8 5/16 1/4 3/16 1/8 254.4 4.380 0.9 4.326 11.0 x 9.0 48.1 17.8 26.3 53.65 10 x 2 x 3/8 5/16 1/4 3/16 254.214 8.2 44.1 33.7 86.63 0.6 xx 177.251 14.355 0.4 12.8 81.8 71.8 31.8 49.65 0.8 2.7 32.63 0.1 43.9 6.77 0.289 14.4 92.9 14.0 36.8 17.69 0.8 665 557 440 374 305 233 .8 86.5 21.7 6260 5280 4270 3230 50.3 43.7 56.1 489 419 338 291 240 185 59.9 700 557 476 389 298 94.42 267 231 191 148 52.0 236 205 171 134 78.2 x 9.5 106 11400 185 0.5 25.1 31.4 49.8 8.8 8.7 3/8 9.0 93.743 0.2 19.242 4.4 14.8 63.7 10 x 6 x 5/8 1/2 3/8 5/16 1/4 3/16 254.3 40.9 14.5 37.232 0.9 4.3 40.4 10600 16.9 6.5 43.0 69.623 0.9 4.6 28.3 14.305 0.Metric Dimensions and Section Properties of Rectangular HSS Nominal Size Design Mass Weight Wall Per Per Thickness Meter Meter t b/t X-X Axis Y X Y Y-Y Axis Torsional Torsional Surface Stiffness Shear Area Constant Constant Per Zy / 103 J / 103 C / 103 Meter Area Ix / 106 Sx / 103 rx mm2 mm4 mm3 mm mm3 mm4 mm3 mm mm3 mm4 mm3 m2 9870 7620 6410 5170 3900 88.158 8.9 33.6 54.549 0.3 31.9 7.2 18.7 71.9 41.2 38.0 40.0 21.4 0.8 8.5 60.9 490 423 343 295 244 189 82.23 20.4 x 15.5 8680 25.2 18.4 3.2 27.5 6000 5470 4760 3860 180 157 131 102 0.4 43.0 23.80 US Customary SI / Metric Inches Millimeters kg kN mm 10 x 8 x 1/2 3/8 5/16 1/4 3/16 254.5 25.2 500 426 348 265 16.79 0.0 x 88.3 40.4 0.7 338 288 231 198 163 125 34600 30800 25600 22300 18600 14500 602 507 402 342 279 213 0.69 0.7 29.8 x 9.270 10 x 4 x 5/8 1/2 3/8 5/16 1/4 3/16 254.6 27.0 307 263 215 165 38900 33600 27900 21600 513 435 354 269 0.6 28.4 4.0 618 493 422 346 265 79.80 8.53 1.6 14.4 5.36 5.9 14.4 40.9 7.4 396 340 280 216 89.5 41.74 0.4 81.5 25.5 7.3 80.2 20.7 31.1 4570 54.4 5.6 849 666 565 459 349 62.8 33.867 0.4 5.6 37.9 4.4 89.7 12. 4 14600 12600 11100 9430 7460 323 260 224 184 141 0.9 33.4 4.3 20.5 7.465 0.474 0.7 9.48 0.5 31.4 5.7 27.6 14.54 0.330 0.66 0.46 1.3 14.9 12.2 64.6 25.49 0.132 11.0 x 15.4 83.2 64.69 0.48 0.3 22.49 4.2 485 417 338 291 240 185 78.8 8.8 24.614 0.1 52.4 43.7 24800 22300 18700 16400 13700 10800 7670 472 399 318 271 222 170 118 0.1 76.339 0.3 65.2 158 30.4 4.4 4.58 0.5 416 352 281 240 197 151 46500 40700 33400 29000 24100 18700 698 583 459 390 317 242 0.9 5.4 4.7 13.6 72.7 22.4 3.2 39.4 3.4 76.7 9.214 11.57 0.0 28.55 1.0 28.2 x 12.1 9.9 6.4 43.6 0.9 7.474 0.2 x 76.514 0.1 51.1 18.5 42.7 38.8 31.145 14.7 62.69 3.8 31.71 336 294 241 209 174 135 95.195 0.4 40.4 40.4 5.614 0.4 66.176 0.9 14.4 3.4 14.5 5.4 220 191 158 123 86.7 11.1 77.6 10.7 9.12 3.7 71.6 48.77 127 109 96.6 25.6 29.120 8.0 77.9 6.5 65.4 72.5 82.4 43.7 7580 6280 4900 4150 3370 2550 1770 34.7 14.7 9.15 3.6 8.3 81.5 7.70 9 x 3 x 1/2 3/8 5/16 1/4 3/16 228.86 4.6 18.1 32.7 20.8 0.7 49.2 x 50.743 0.9 4.69 0.59 0.8 11.67 0.7 14.1 12400 10700 9500 8070 6400 4610 285 230 198 163 125 87.4 4.4 4.53 0.0 3.9 4.7 9.5 7.18 240 199 174 145 113 80.1 55.8 0.339 0.400 0.2 112 31.9 7.60 8 x 3 x 1/2 3/8 5/16 1/4 3/16 1/8 203.5 67.990 0.2 77.7 4490 4120 3600 2930 2160 142 124 104 80.6 59.65 65.6 7.52 0.9 35.0 157 14.4 73.81 8.280 0.9 75.9 10.0 52.8 116 9.0 15.4 3.4 22.67 0.9 7.2 64.8 24.5 31.0 6280 4900 4150 3370 2550 33.6 30.4 40.1 468 402 325 280 231 178 72.5 31.5 21.11 2.2 47.58 0.8 53.8 14.58 0.6 0.3 75.9 70.2 19.8 0.5 1.0 61.2 0.5 32.53 0.7 395 341 277 239 198 153 57.8 75.4 26.1 29.7 14.8 66.54 0.59 0.2 42.1 39.8 24.2 19.5 129 31.5 5.1 68.5 272 234 189 163 134 103 72.5 0.4 40.2 63.41 1.728 61.6 8.68 0.18 7.8 34.7 5680 4450 3780 3070 2330 1620 24.4 7.0 3.9 12.67 3.9 6.69 0.2 x 152.3 9.8 33.401 0.1 451 384 308 264 217 167 117 11.9 6.8 11.48 2.8 177 145 125 104 80.255 0.9 33.214 0.8 38.66 0.6 28.0 31.514 0.3 0.5 23.4 69.9 6.3 16.277 0.4 484 408 325 278 227 174 54500 47300 38600 33400 27700 21400 755 629 494 419 340 259 0.5 7.0 2.4 10.251 14.4 68.3 71.9 4.4 x 15.4 37.743 0.0 138 11.4 52.8 34.6 33.6 28.3 33.0 21.280 0.6 294 242 210 175 136 73.3 9.57 0.8 75.3 23.4 5.7 9.618 0.3 11.1 20.1 79.8 3.5 25.363 0.5 63.8 8.3 74.0 9090 7480 5810 4900 3970 3000 55.7 62.8 43.2 84.1 403 324 278 229 176 5.9 4.1 44.9 5.6 22.0 12.8 8.4 16.9 35.1 17.2 32.7 4000 3400 2770 2110 1460 16.5 67.9 4.58 341 296 242 210 174 135 48.2 75.5 47.7 27.5 72.5 21.9 6.9 81.4 5.401 0.4 67.8 8.9 12.330 0.0 632 533 423 361 295 226 21.56 0.59 0.8 x 9.68 0.8 3.8 15.2 29.1 26.8 24.2 9090 7480 5810 4900 3970 3000 47.5 7.8 93.6 .400 0.1 78.8 3.34 218 193 161 141 118 92.7 49.8 41.6 48.3 65.8 24.3 70.4 48.0 19.2 20.5 40.2 17.4 5.4 18.8 52.2 64.9 14.7 592 499 396 338 276 211 30.3 73.75 144 122 108 91.6 46.8 57.8 50.6 64.9 7.1 327 264 228 188 145 102 4.6 x 76.6 27.4 5.1 11.8 11.69 0.50 10 19.5 6.1 8.2 19.3 9.1 51.5 18.5 31.58 0.70 8 x 4 x 5/8 1/2 3/8 5/16 1/4 3/16 1/8 203.2 x 101.326 0.2 28.5 7.66 4.251 14.4 13.308 0.2 x 12.6 x 15.Metric Dimensions and Section Properties of Rectangular HSS Nominal Size US Customary SI / Metric Inches Millimeters Design Mass Weight Wall Per Per Thickness Meter Meter t b/t kg kN mm X-X Axis h/t Y X Y Y-Y Axis Zx / 103 Iy / 106 Sy / 103 X Torsional Torsional Surface Stiffness Shear Area Constant Constant Per Zy / 103 J / 103 C / 103 Meter Area Ix / 106 Sx / 103 rx mm2 mm4 mm3 mm mm3 mm4 mm3 mm mm3 mm4 mm3 m2 ry 9 x 5 x 5/8 1/2 3/8 5/16 1/4 3/16 228.1 31.5 21.2 15.49 0.6 7.9 7.230 0.4 5.59 8 x 6 x 5/8 1/2 3/8 5/16 1/4 3/16 203.1 30.9 13.30 91.7 62.2 33.5 8.6 x 127.0 60.9 12.15 5.3 17.8 11.3 27.55 8 x 2 x 3/8 5/16 1/4 3/16 1/8 203.3 21.8 8.5 40.9 4.4 43.7 3.3 61.2 18.9 7.6 7.5 21.9 19.4 22.5 13.22 0.99 4.7 56.9 14.0 21.7 24. 7 54.3 32.9 16.63 95.4 3.12 2.55 11.5 5.246 0.7 9.5 7.6 14300 12200 10700 9080 7150 5120 292 234 201 165 126 88.1 49.6 28.326 0.54 0.1 31.514 0.17 57.1 17.9 13.9 7.8 14.5 82.277 0.3 0.0 0.120 6 x 5 x 3/8 5/16 1/4 3/16 152.97 169 142 124 104 81.6 50.2 42.4 64.9 14.3 68.3 49.4 5.4 4.0 x 9.58 0.6 47.9 56.9 12.8 3.1 17.363 0.1 64.2 42.54 0.4 x 127.9 14.9 7.9 50.5 240 195 169 139 108 75.5 81.54 0.2 47.255 0.2 258 211 182 151 117 82.44 0.63 71.52 0.84 185 155 136 114 89.3 14.3 22.4 57.6 22.5 25.107 11.5 35.6 8.5 65.3 2330 8.289 0.157 0.6 8.2 38.363 0.8 5080 14.4 37.9 40.90 4.1 30.4 5.176 0.6 49.230 0.8 3.2 146 3550 9.0 27.4 56.5 7.4 4.31 5.0 19.37 28.6 60.120 11.4 4.3 40.9 7.4 3.4 63.6 51.8 0.3 7580 6280 4900 4150 3370 2550 1770 28.9 4.4 5.4 10.7 66.8 x 101.4 48.7 9.415 0.79 1460 4.8 57.7 14.3 23.9 49.3 2770 8.4 x 76.9 4.06 95.6 331 283 227 195 161 124 86.3 3070 10.6 1880 5.6 228 196 161 124 10.49 0.8 x 127.6 22.8 8.9 6 x 4 x 1/2 3/8 5/16 1/4 3/16 1/8 152.9 60.0 52.7 0.5 54.2 28.0 x 15.4 26.4 10.9 14.308 0.4 5.1 18200 15400 13500 11400 8930 6380 345 276 236 193 148 103 0.0 72.60 5.230 0.2 65.2 6 x 3 x 1/2 3/8 5/16 1/4 3/16 1/8 152.5 10.50 0.618 0.58 0.2 18.5 40.16 2.53 0.0 12.6 8.6 57.9 25.5 42.6 99.1 57.0 19.66 2110 6.5 25.132 11.4 5.9 ry .4 18.2 20.6 4450 14.1 39.74 71.4 4.415 0.255 0.2 x 12.48 0.145 14.3 31.8 34.9 14.195 8.7 9.2 20.8 8.4 25.36 110 2470 7.6 31200 27700 23000 20000 16700 13000 9250 529 445 352 300 245 187 130 0.8 11.18 325 284 232 202 167 130 92.0 5.7 17.01 186 162 135 105 56.2 x 12.9 6.8 x 76.45 US Customary SI / Metric Inches Millimeters kg kN mm 7 x 5 x 5/8 1/2 3/8 5/16 1/4 3/16 1/8 177.57 41.1 40.60 51.9 4.1 3780 12.1 17.2 10.3 55.42 0.49 0.4 56.1 37.8 37.5 7.5 5.8 72.7 45.8 12.2 12.7 52.205 0.88 7.6 22.19 5.6 2.1 114 30.7 32.0 31.326 0.2 28.9 9.4 15.49 0.0 1310 3.59 0.8 3.4 5.9 14.8 3400 10.9 58.9 41.22 84.8 8.3 86.8 11.85 190 160 140 118 92.4 4.0 420 358 287 246 202 155 109 16.3 9.0 7 x 3 x 1/2 3/8 5/16 1/4 3/16 1/8 177.3 22.9 39.0 21.195 0.5 0.48 0.1 180 147 127 105 81.8 3.23 123 5.Metric Dimensions and Section Properties of Rectangular HSS Nominal Size Design Mass Weight Wall Per Per Thickness Meter Meter t b/t X-X Axis Y X Y Y-Y Axis Torsional Torsional Surface Stiffness Shear Area Constant Constant Per Zy / 103 J / 103 C / 103 Meter Area Ix / 106 Sx / 103 rx mm2 mm4 mm3 mm mm3 mm4 mm3 mm mm3 mm4 mm3 m2 9.0 201 173 142 110 18100 15800 13200 10400 299 255 209 159 0.48 108 4.9 6.4 56.9 139 30.1 17.1 4000 11.2 64.60 3.2 63.56 0.5 52.8 62.5 8.1 17.2 h/t 11 Zx / 103 Iy / 106 Sy / 103 X 94.2 18.5 3.3 51.8 4480 11.6 167 9.8 8.8 3.8 31.9 6.1 198 163 141 117 91.37 1.2 20.3 119 29.3 33.1 63.7 14.5 61.9 14.9 4.20 6.1 37.4 3.5 67.6 10200 8860 7900 6730 5350 3860 246 200 172 142 109 76.47 0.8 8.9 62.7 9.0 61.30 4.48 0.7 9.43 0.2 40.4 62.3 32.2 0.2 65.7 59.3 29.6 63.48 0.4 4.0 5.2 12.9 4.53 0.8 99.85 6.0 21.1 17.3 52.0 21.3 33.0 12.4 12.5 21.9 6.4 18.6 8.6 47.277 0.0 8030 7070 6340 5420 4330 3140 207 169 146 121 93.9 7.1 37.5 0.1 1.75 122 6.8 31.4 9.6 42.465 0.6 7.56 73.339 0.9 4.6 x 12.9 65.57 0.9 14.6 7.0 30.9 11.308 0.9 6.2 0.48 124 3020 8.7 57.1 20.3 3.49 0.0 52.53 0.5 2.5 38.8 3.06 92.9 14.78 2.89 1.9 12.8 31.9 207 168 145 120 92.3 5680 4450 3780 3070 2330 1620 21.2 28.3 14.47 0.6 56.2 4.5 7.3 55.0 12.53 0.1 65.400 0.4 40.3 7 x 4 x 1/2 3/8 5/16 1/4 3/16 1/8 177.4 64.365 0.99 52.5 7.8 41.3 65.7 63.4 x 101.27 146 7.9 7.50 37.3 23.01 237 196 171 142 111 78.8 308 249 214 176 136 95.4 3.4 3.9 6.0 27.7 9.6 53.0 3.54 42.9 2.214 0.23 111 3.9 7.6 x 12.5 8.1 30.59 0.0 27.61 90.1 55.0 3.4 31.38 145 6.44 0.0 31.9 7.280 0.176 0.2 48.1 17.6 7.5 7.4 26.90 266 233 192 167 139 109 77.60 7.0 11.9 58.4 11.3 9.1 47.9 51.3 5080 4000 3400 2770 2110 1460 16.43 0. 24 82.8 3.7 14.7 39.0 18.0 28.9 4.8 29.2 21.34 0.1 153 10600 38.2 21.154 0.4 42.4 42.4 4.6 45.7 2.7 0.0 83.6 x 76.9 14.44 0.3 22.9 4.15 6.54 55.8 x 9.4 3.42 0.35 7.8 69.9 7.9 39.5 7.12 2.38 0.7 49.3 9.9 6.9 24.2 20.4 18.9 0.4 4.8 11.185 0.0 49.7 35.4 0.0 62.39 0.0 43.0 18.214 0.7 3.082 8.095 8.9 21.39 0.1 3.16 78.3 88.78 50.5 30.8 37.4 7.7 48.2 8.9 14.3 14.9 1.9 7.7 38.5 7.9 4480 3550 3020 2470 1880 11.9 7.7 100 29.4 3.1 68.1 27.0 35.2 32.4 49.0 46.4 10.0 4 x 3 x 3/8 5/16 1/4 3/16 1/8 101.1 74.9 6.4 41.0 7.9 20.289 0.089 5.09 1.30 40.9 5 x 4 x 1/2 3/8 5/16 1/4 3/16 127.120 0.37 2.9 7.89 3.6 60.4 5.3 19.49 65.5 21.21 1.36 0.216 0.110 SI / Metric Inches Millimeters kg kN mm 6 x 2 x 3/8 5/16 1/4 3/16 1/8 152.2 25.6 20.9 41.6 64.3 61.1 20.8 3.1 9.97 2.43 0.3 22.9 5.3 14.4 5.1 0.748 0.7 9.6 7.7 18.467 37.4 10.4 5990 5360 4830 4160 3340 2430 169 139 120 100 77.1 42.38 5.157 11.20 37.6 1.9 5.9 91.9 2640 2270 1870 1440 1010 3.4 42.62 1.37 0.5 4.0 x 63.25 4.3 38.60 1.1 74.167 13.4 6.1 1.7 78.4 41.7 0.2 18.8 50.34 0.9 6.8 12.9 11.8 .4 43.6 20.33 2.3 29.82 139 7.8 11.7 14.3 2640 2270 1870 1440 1010 4.0 x 101.1 36.1 28.095 5 x 2 1/2 x 1/4 3/16 1/8 127.316 0.9 4.90 3.5 44.3 14.252 0.2 0.17 5.7 52.1 0.38 0.4 77.38 0.7 34.4 4.1 2080 1720 1330 2.8 8.9 48.5 13.05 1.2 18.957 54.9 4.2 x 9.8 12.0 3.5 51.5 31.45 4.38 0.4 4.40 37.7 3.4 10.4 0.139 0.2 36.58 104 5.8 5.8 15.6 31.8 3.31 0.38 68.0 130 49.5 56.8 x 9.770 24.1 29.39 0.2 1.3 52.3 61.2 5.9 55.55 40.7 73.0 6880 40.4 44.1 95.5 105 45.4 3.2 20.Metric Dimensions and Section Properties of Rectangular HSS Nominal Size Design Mass Weight Wall Per Per Thickness Meter Meter t b/t X-X Axis rx mm2 mm4 mm3 mm mm3 mm4 14.3 61.142 11.0 39.6 22.89 92.8 24.3 17.05 33.6 47.5 63.9 1.179 0.6 7.1 52.55 2.3 34.2 x 12.1 17.4 25.154 0.30 2.93 3.82 107 5.4 4.1 114 50.34 3.7 14.120 0.4 8.6 22.43 0.9 61.4 46.5 35.8 82.9 16.5 7.8 29.6 121 44.44 27.35 2.3 9.5 25.9 4.1 30.8 3740 3400 2960 2390 1750 108 94.88 1.2 5 x 2 x 3/8 5/16 1/4 3/16 1/8 h/t X Zx / 103 Iy / 106 Sy / 103 X Y Y-Y Axis Area Ix / 106 Sx / 103 US Customary Y ry Torsional Torsional Surface Stiffness Shear Area Constant Constant Per Zy / 103 J / 103 C / 103 Meter mm3 mm mm3 mm4 mm3 m2 56.3 29.39 0.4 45.5 4.6 8.31 0.0 0.2 93.7 71.252 0.9 7.8 35.2 179 147 128 106 82.2 21.33 0.33 0.3 0.5 13.7 65.4 x 50.3 30.1 7.8 42.2 0.0 2.5 5.6 34.7 31.871 0.5 25.082 4 x 2 1/2 x 5/16 1/4 3/16 101.3 0.4 48.2 40.3 31.05 33.05 0.2 18.216 0.9 61.2 20.8 8.5 x 7.37 0.70 1.6 76.10 121 103 91.8 83.97 2.4 36.0 x 50.4 49.2 127.0 26.2 41.179 0.34 0.0 40.3 44.5 84.1 28.4 75.30 0.5 25.365 0.2 0.9 4.4 5 x 3 x 1/2 3/8 5/16 1/4 3/16 1/8 127.14 93.2 41.32 12 19.2 28.6 x 63.0 0.3 2020 1550 1080 3.3 3030 2800 2470 2030 1500 104 91.4 4.40 48.55 2.0 24.4 5.8 11.6 7.169 14.9 39.5 25.2 55.5 18.2 35.26 61.9 44.33 0.1 3880 3100 2650 2170 1660 1160 6.6 2320 2170 1920 1590 1180 85.2 37.7 25.8 5450 238 192 165 136 105 0.0 0.5 7.97 67.8 2.5 7.8 68.5 x 6.3 25.0 68.34 0.4 18.7 0.3 63.4 5.4 5.628 0.4 30.0 37.7 47.15 1.8 3.554 45.47 118 6.4 78.947 0.246 0.185 0.4 25.6 22.55 87.1 44.2 30.1 43.3 50.3 14.4 26.765 0.1 58.6 8.1 40.3 14.9 4.4 5.4 4.1 24.2 20.9 6.60 2.214 0.8 17.205 0.9 6.6 70.4 3.4 0.9 18.5 126 9130 39.9 39.1 2.2 25.139 0.8 3.9 18.5 2420 2130 1740 76.2 8.917 0.7 46.6 61.5 47.4 42.0 48.9 30.4 5.1 9.31 3.8 15.7 9.8 35.0 x 76.2 43.129 9.4 0.33 0.3 36.3 2970 2410 1770 81.45 70.9 6.8 31.0 5.9 46.5 50.7 33.2 109 8100 39.9 145 43.5 0.9 19.0 53.8 3100 2650 2170 1660 1160 7.6 21.855 26.8 60.64 3.00 1.4 3.6 8.1 54.3 35.5 0.8 11.5 51.35 8.8 8.6 x 12.9 44. 2 18.2 18.4 36.4 19.8 11.692 0.27 0.9 6.2 28.9 x 63.5 x 9.8 5.4 4.4 5.9 0.28 0.2 30.3 22.282 8.2 23.48 14.6 24.386 0.4 5.7 32.046 6.0 3.8 3.8 3.103 6.071 0.5 10.6 43.5 18.5 8.5 0.8 3.52 1.56 10.4 18.6 34.1 x 6.05 102 87.4 2090 1950 1730 1420 1060 75.71 9.1 5.27 18.8 x 38.9 4.0 16.4 x 4.7 20.5 3.7 6.045 5.8 3.0 29.9 31/2 x 21/2 x 3/8 5/16 1/4 3/16 1/8 88.7 9.6 47.0 3.145 0.9 18.3 4.24 0.2 0.6 8.0 66.9 26.5 21.86 15.4 7.5 767 550 0.4 5.22 5.659 0.6 0.051 5.6 26.6 31.9 42.17 5.6 8.063 0.9 9.4 18.2 14.1 23.2 7.9 41.6 24.4 3.9 7.746 0.13 1.2 5.1 55.04 25.6 7.1 19.4 28.070 8.9 9.1 x 4.1 0.0 23.6 0.7 29.9 11.21 0.104 0.549 9.12 45.345 9.186 0.73 0.9 4.1 12.129 0.9 0.86 3.5 29.6 7.4 3.1 37.0 20.1 31.2 14.2 18.444 11.2 20.4 41.0 23.3 22.5 5.21 1.0 2.366 11.0 36.4 17.757 0.98 1.4 27.4 10.0 5.19 0.4 3.7 22.123 0.064 3 x 2 x 5/16 1/4 3/16 1/8 76.6 0.7 8.8 x 7.6 13.3 7.2 8.5 0.2 19.4 3.6 2190 1900 1570 1210 855 1.3 6.039 3.9 4.0 2.4 25.8 3.9 6.4 7.8 x 25.4 9.154 0.2 27.51 6.29 0.2 27.6 4.8 11.2 12.2 15.5 0.5 0.2 14.26 0.8 7.1 0.63 15.1 17.045 3.8 28.0 59.092 0.073 0.8 8.292 20.2 x 63.88 22.40 188 156 12.130 7.150 11.8 3.3 28.4 779 1.4 4.4 4.8 3.9 39.64 17.80 374 333 263 21.4 21.28 0.8 3.0 15.2 26.045 4.21 0.92 1420 14.7 24.2 13.8 3.2 7.3 9.9 5.4 3.24 14.0 30.1 14.5 25.4 3.5 14.101 0.3 7.054 0.1 0.7 14.6 30.28 0.75 13.4 x 4.2 10.2 20.6 0.9 21.5 44.2 5.925 0.4 1120 879 627 76.2 12.39 14.66 3.9 12.4 0.9 2190 1900 1570 1210 855 2.8 20.9 4.29 46.1 56.5 13.27 0.5 6.3 25.8 21.8 0.70 mm4 .7 9.2 970 767 550 0.9 34.4 1520 1270 990 703 0.90 0.1 19.2 x 50.138 0.3 28.9 655 474 0.058 7.23 0.876 0.1 15.23 0.225 0.7 3.1 5.032 4.070 8.47 232 187 13.6 33.193 0.462 0.5 5.5 7.2 14.154 0.9 5.1 11.6 27.4 28.2 x 25.613 0.5 7.08 17.36 18.4 21/2 x 1/2 x 1/4 3/16 1/8 63.28 0.117 0.4 28.0 32.62 9.14 502 439 343 25.9 23.2 33.24 4.2 10.1 x 6.9 543 398 0.30 1710 9.5 25.379 29.129 0.26 0.697 18.162 0.5 x 7.943 44.6 35.5 25.8 20.18 0.8 x 9.4 4.2 24.7 9.71 16.883 0.906 0.1 15.561 36.5 x 38.0 12.5 35.3 0.0 37.491 28.5 40.177 0.2 11.8 15.1 0.2 7.25 0.9 22.4 3.2 0.4 4.5 4.161 2.0 3.32 0.81 1.4 3.58 1.039 4.2 20.1 1500 1350 1120 838 55.588 15.7 2 x 1 1/2 x 3/16 1/8 50.5 26.9 14.7 0.9 49.513 0.6 18.0 17.19 0.06 5.092 0.1 36.6 x 50.126 9.7 1.9 34.2 6.0 26.7 35.8 5.079 0.5 10.4 5.1 35.3 7.5 4.4 27.7 8.9 3 x 1 1/2 x 1/4 3/16 1/8 76.4 5.3 22.1 30.1 0.507 0.101 0.4 58.05 0.3 48.0 SI / Metric Inches Millimeters kg kN mm 4 x 2 x 3/8 5/16 1/4 3/16 1/8 101.7 24.1 0.0 3 x 21/2 x 5/16 1/4 3/16 1/8 76.5 26.96 0.732 0.177 0.2 x 38.6 13.33 2.0 2 x 1 x 3/16 1/8 50.4 4.651 31.063 0.2 20.3 0.7 24.08 0.3 1100 22.0 24.16 0.6 8.082 0.15 1.2 7.9 14.118 13 X Y Y-Y Axis Area Ix / 106 Sx / 103 US Customary Y mm3 m2 1640 1550 1390 1160 871 66.0 24.5 33.29 23.9 6.80 14.9 0.2 17.0 23.4 25.4 3.07 0.2 20.29 0.426 13.3 9.9 8.0 38.3 0.2 63.28 0.057 7.8 14.2 10.1 17.9 22.4 0.4 975 893 756 575 42.65 4.4 19.Metric Dimensions and Section Properties of Rectangular HSS Nominal Size Design Mass Weight Wall Per Per Thickness Meter Meter t b/t X-X Axis rx mm2 mm4 mm3 mm mm3 mm4 8.9 4.2 29.7 9.0 52.9 7.5 10.8 11.87 1.0 0.9 4.6 36.205 0.0 14.25 6.9 18.9 6.4 21.7 13.0 9.0 25.9 31.14 9.7 13.447 11.9 25.19 0.8 17.1 6.14 0.9 7.800 0.2 12.2 4.2 3 x 1 x 3/16 1/8 h/t X Zx / 103 Iy / 106 Sy / 103 ry Torsional Torsional Surface Stiffness Shear Area Constant Constant Per Zy / 103 J / 103 C / 103 Meter mm3 mm mm3 0.84 0.4 5.4 18.4 35.989 0.19 8.5 13. 19 20 x 20 x 5/8 * 1/2 * 3/8 * 508.0 61.9 57.7 9.5 48.9 12.5 41.052 2.4 x 15.54 2.80 26 x 26 x 5/8 * 1/2 * 3/8 * 660.00 28 x 28 x 5/8 * 1/2 * 3/8 * 711.4 x 15.9 * 12.7 116.957 14.8 130.3 45.2 x 15.082 1.60 1.6 273.1 3.7 9.0 x 762.306 1.9 12.9 41.4 221.9 189.7 * 9.7 51.9 * 12.7 51.0 61.0 82.2 x 711.171 15.5 49.7 2.5 38.9 12.9 293.73 1.5 35.3 313.5 * 336.8 33.5 49.7 9.280 15.75 2.023 15.9 12.9 * 12.076 2.7 9.2 46100 37400 28200 4210 3460 2640 11000 9090 6940 302 304 306 12800 10400 7920 6520000 5280000 4020000 17600 14200 10700 2.2 44.0 50.15 3.0 45.4 42.9 * 12.9 153.9 * 12.7 9.508 1.1 26700 21900 16600 842 708 548 3680 3100 2400 177 180 182 4340 3610 2770 1330000 1090000 840000 6130 5000 3800 1.78 2.2 35.678 2.60 * This size produced by the submerged arc weld (SAW) process 14 .7 * 9.7 53.6 49300 40000 30100 5140 4220 3220 12700 10400 7920 323 325 327 14600 11900 9040 7960000 6440000 4890000 20100 16200 12300 3.93 1.0 77.6 x 15.0 2.2 x 15.480 1.39 22 x 22 x 5/8 * 1/2 * 3/8 * 558.803 2.9 24.98 18 x 18 x 5/8 * 1/2 * 3/8 * 457.5 32.9 12.8 x 15.5 * 209.9 42900 34800 26300 3390 2800 2140 9550 7870 6020 281 284 285 11100 9050 6880 5270000 4270000 3250000 15300 12400 9350 2.4 x 406.3 160.7 * 9.8 2.7 53.798 3.17 2.7 * 9.5 * 311.5 28.9 12.57 1.8 33200 27000 20500 1590 1330 1020 5700 4750 3650 219 221 223 6650 5490 4190 2490000 2030000 1560000 9310 7550 5720 2.0 50.0 71.6 236.0 71.6 1.9 22600 18300 13900 11700 571 469 365 308 2810 2310 1790 1510 159 160 162 162 3290 2680 2070 1740 854000 703000 547000 461000 4530 3670 2810 2350 1.7 * 9.8 11.0 55.5 7.58 2.1 25.5 * 387.5 39600 32200 24300 2690 2230 1700 8150 6740 5160 261 263 265 9460 7760 5910 4190000 3400000 2590000 13100 10600 8040 2.1 61.5 * 260.5 31.8 232.8 x 812.4 42.0 55.0 x 508.726 15.4 x 660.9 * 12.3 3.685 1.6 x 609.19 3.98 3.8 32.8 x 558.9 12.874 15.4 24.0 82.554 2.Metric Dimensions and Section Properties of Square HSS Nominal Size Design Weight Wall Per Thickness Meter t US Customary SI / Metric Mass Per Meter Inches Millimeters kg kN mm b/t h/t Torsional Torsional Surface Stiffness Shear Area Constant Constant Per J / 103 C / 103 Meter Area I / 106 S / 103 r Z / 103 mm2 mm4 mm3 mm mm3 mm4 mm3 m2 32 x 32 x 5/8 * 1/2 * 3/8 * 812.37 2.8 x 15.9 57.5 * 361.5 * 235.9 * 12.9 * 12.862 1.9 37.1 192.5 31.76 1.7 * 9.97 1.143 0.0 66.7 9.281 1.0 x 15.301 2.5 * 285.2 252.057 1.5 2.320 15.0 x 15.34 2.14 2.1 145.6 3.0 45.3 45.59 24 x 24 x 5/8 * 1/2 * 3/8 * 609.4 3.0 77.7 * 9.7 9.0 66.78 16 x 16 x 5/8 1/2 3/8 5/16 406.8 33.577 15.9 12.1 206.877 2.5 25.1 41.59 1.5 212.8 171.8 8.9 191.5 38.9 7.7 9.95 2.6 48.5 30000 24500 18600 1180 985 760 4640 3880 2990 198 201 202 5430 4500 3440 1850000 1510000 1160000 7630 6210 4710 1.428 15.7 * 9.2 36400 29600 22400 2090 1740 1330 6870 5700 4370 240 242 244 8000 6580 5010 3270000 2660000 2030000 11100 9030 6830 2.7 9.549 2.1 61.5 28.6 176.9 37.1 41.884 1.2 x 457.5 44.20 30 x 30 x 5/8 * 1/2 * 3/8 * 762.9 12.6 97. 9 6.6 599 510 409 351 289 222 75.8 8.2 48.7 9.5 7.8 93.5 31.2 793 622 527 429 326 113000 90400 77300 63400 48600 1100 856 723 584 442 0.309 0.4 43.78 0.4 22.4 59.7 29.7 13600 11100 8520 7160 5770 4340 127 106 84.2 18.4 0.38 1.7 49.1 54.2 38.88 0.1 54.98 0.912 0.0 16.1 1.7 56.9 35.364 14.8 31.5 43.9 7.9 51.6 x 15.4 5.7 9.77 0.5 7.8 1000 838 664 566 462 353 96.0 1.4 664 529 452 370 284 87.713 0.87 0.2 18.8 11.2 10.8 88.2 x 15.0 99.580 14.5 31.1 89.8 113.9 12.326 11.4 4.0 45.525 0.5 7.5 133.9 4.8 58.19 1.586 0.79 0.7 9.8 63.00 1.5 7.8 48.5 101.5 31.0 27.5 31.8 8.6 x 228.9 12.3 40.9 35.480 0.99 1.37 1.613 1.00 9 x 9 x 1/2 3/8 5/16 1/4 3/16 228.79 0.995 0.89 0.8 77.9 734 614 484 412 336 256 90100 77100 62100 53400 43900 33800 1040 858 669 566 459 347 0.5 91.6 35.4 21.1 80.2 86.20 10 x 10 x 5/8 1/2 3/8 5/16 1/4 3/16 254.4 5.6 98.4 22.9 6.4 139.90 8 x 8 x 5/8 1/2 3/8 5/16 1/4 3/16 203.9 4.1 19600 15900 12100 10200 374 309 241 204 2100 1740 1360 1150 138 140 141 142 2480 2030 1570 1320 559000 463000 361000 306000 3430 2780 2140 1790 1.3 22.4 72.2 19.5 7.4 51.18 1.9 7.4 14.8 11.846 0.0 x 15.4 43.1 1.4 5.430 0.6 22.9 7.8 x 304.97 0.2 38.9 37.7 27.40 12 x 12 x 5/8 1/2 3/8 5/16 1/4 304.867 0.76 0.6 x 355.4 100 101 102 1200 994 777 657 534 405 189000 159000 126000 108000 88000 67200 1680 1380 1070 898 726 548 0.7 27.4 5.1 59.7 49.9 6.8 x 15.380 0.8 8.4 16.99 0.5 25.6 22.7 9.364 1.7 16600 13500 10300 8660 6960 229 190 149 127 103 1500 1250 979 831 676 117 119 120 121 122 1780 1470 1140 961 777 341000 284000 224000 190000 154000 2480 2020 1560 1310 1050 1.8 8.4 85.9 4.4 10.697 0.9 17.2 48.812 0.9 12.8 24.8 41.0 9870 7620 6410 5170 3900 75.8 24.8 33.833 14.5 25.289 14.1 37.7 14.8 11.0 71.7 17.4 4.110 0.1 21.9 6.1 37.7 89.89 0.623 0.0 27.8 8.7 9.6 x 12.549 0.7 44.8 31.463 0.39 1.7 79.5 53.2 19.Metric Dimensions and Section Properties of Square HSS Nominal Size Design Weight Wall Per Thickness Meter t US Customary SI / Metric Mass Per Meter Inches Millimeters kg kN mm b/t h/t Torsional Torsional Surface Stiffness Shear Area Constant Constant Per J / 103 C / 103 Meter Area I / 106 S / 103 r Z / 103 mm2 mm4 mm3 mm mm3 mm4 mm3 m2 14 x 14 x 5/8 1/2 3/8 5/16 355.8 90.7 14.7 42.4 4.9 12.9 164.80 15 .0 x 254.116 0.8 82.3 32.3 78.8 11.9 7.1 113.2 38.7 29.3 40.7 14.710 0.4 80.19 1.0 47.3 72.17 1.3 0.0 45.2 x 203.2 10600 8680 6710 5650 4570 3450 60.9 60.9 7.3 71. 1 43.6 47.2 54.308 0.7 15800 13400 11800 9930 7810 5580 307 246 210 172 132 92.2 167 137 119 99.6 12.54 0.8 3.7 15.8 11.8 53.205 0.3 7.65 5.4 4.48 0.9 438 377 305 263 217 168 65.5 7.0 12.618 0.44 0.9 39.7 9.176 0.37 5.5 21.3 29.3 9.0 6.5 25.326 0.4 5.8 34.8 11.2 37.4 4.8 44.1 17.2 0.6 215 185 152 117 82.6 52.93 6.214 0.2 63.00 177 155 129 101 71.9 20.8 12.0 20.56 0.72 170 143 125 105 82.9 6.48 0.400 0.6 46.8 3.246 0.2 58.74 3.3 14.0 27.4 9.9 55.9 4.4 18.7 50.4 23.6 0.2 0.0 x 127.1 67.8 11.43 0.8 12.7 62.0 21.4 214 174 150 124 96.8 8.277 0.59 0.4 5.1 4480 3550 3020 2470 1880 1310 7.8 7.8 8.9 6.04 5.57 0.280 0.74 2.9 14.0 7.6 22.255 0.8 70.2 18.120 11.1 16.8 8.330 0.3 5080 4000 3400 2770 2110 1460 10.5 7.5 18400 16100 13500 10500 7500 302 257 210 161 112 0.3 83.7 28.289 0.3 x 114.0 0.43 0.9 6.0 7.4 3.4 4.743 0.4 3.4 40.6 4450 3780 3070 2330 1620 12.42 0.2 28.107 11.3 9.1 37.0 27.2 0.0 49.4 5.2 37.55 5 x 5 x 1/2 3/8 5/16 1/4 3/16 1/8 127.9 16.0 11.9 20.02 7.7 9.4 x 152.6 25.3 69.415 0.8 31.8 43.6 48.5 7.54 301 263 216 188 156 121 85.6 22.5 14.66 0.4 66.4 x 15.5 25.9 14.9 4.2 18.7 9.69 0.9 7.4 43.7 33500 29600 24500 21300 17800 13800 9800 548 460 364 310 252 192 134 0.0 35.4 4.4 16.145 14.9 7.47 0.9 7.2 42.8 7580 6280 4900 4150 3370 2550 1770 23.4 4.9 12.4 9.54 0.45 16 .67 0.251 14.4 25.9 12.44 0.8 55.7 9.8 43.8 11.8 x 15.8 3.8 75.0 52.62 4.5 0.3 x 12.22 3.0 x 12.7 15.4 23.0 69.5 57.9 4.9 6.3 14.339 0.9 58.9 13.53 0.7 9.0 12.514 0.474 0.1 6.8 381 324 260 223 183 141 98.8 9.4 5.6 28.5 7.69 0.9 6.1 47.1 17.5 27.195 0.58 0.4 3.4 10.49 0.9 9.7 x 139.8 14.1 17.70 6 x 6 x 5/8 1/2 3/8 5/16 1/4 3/16 1/8 152.7 x 9.3 11.8 8.7 9.4 19.4 40.0 35.132 8.1 20.05 7.4 3.9 4.7 59.8 x 177.9 54.3 14.3 49.68 0.365 0.4 9090 7480 5810 4900 3970 3000 38.8 9.157 0.6 48.1 60.0 12.9 33.23 6.9 42.0 65.9 68.4 60.0 12.Metric Dimensions and Section Properties of Square HSS Nominal Size Design Weight Wall Per Thickness Meter t US Customary SI / Metric Mass Per Meter Inches Millimeters kg kN mm b/t h/t Torsional Torsional Surface Stiffness Shear Area Constant Constant Per J / 103 C / 103 Meter Area I / 106 S / 103 r Z / 103 mm2 mm4 mm3 mm mm3 mm4 mm3 m2 7 x 7 x 5/8 1/2 3/8 5/16 1/4 3/16 177.4 10900 9400 8340 7070 5600 4020 242 195 168 138 106 74.9 39.0 21.0 40.51 6.9 7.60 5 1/2 x 5 1/2 x 3/8 5/16 1/4 3/16 1/8 139.1 37.614 0.58 0.50 4 1/2 x 4 1/2 x 1/2 3/8 5/16 1/4 3/16 1/8 114.3 23.8 3.1 76.0 31.0 19.9 4.363 0.230 0.4 5.1 23.53 0.4 26.4 16.5 54.8 0.5 47.69 131 111 98.6 45.59 0.9 33.5 543 457 363 310 254 194 57300 49700 40400 34900 28900 22400 774 644 505 428 348 264 0.9 7.49 0.401 0.3 33.6 47.7 28.0 56.5 7.8 31.1 17. 27 0.8 58.5 13.0 32.1 15.4 7.4 4.0 5.2 12.2 37.3 29.5 20.4 4.8 3.7 10.757 0.23 0.0 16.1 6.6 35.4 3.6 8.4 5.051 5.34 0.25 1.22 60.7 0.421 23.7 47.33 0.1 30.43 2.214 0.561 0.4 3.1 23.44 1.7 37.4 5.0 5.0 32.5 34.2 20.2 Torsional Torsional Surface Stiffness Shear Area Constant Constant Per J / 103 C / 103 Meter Area I / 106 S / 103 r Z / 103 mm2 mm4 mm3 mm mm3 mm4 mm3 m2 5.9 6.2 8.2 21.0 0.6 7.1 67.7 59.34 0.301 16.0 38.2 9.4 2190 1900 1570 1210 855 1.123 0.0 18.0 126 105 91.0 12.4 47.7 10.8 27.316 0.28 0.21 0.40 7.7 13.2 45.3 22.5 45.0 29.2 74.8 19.0 6.1 30.5 7.6 7.9 14.9 6.3 23.2 18.9 17.0 9.216 0.4 3.57 1.6 7.6 22.8 26.154 0.4 3.6 7.6 683 585 449 30.9 68.57 1.09 1.7 21.4 21.22 b/t h/t 17 .9 6.0 12.0 3 x 3 x 3/8 5/16 1/4 3/16 1/8 76.2 0.37 0.9 4.28 3.5 44.7 36.8 24.3 14.5 28.104 0.1 17.24 2.9 0.5 7.082 0.68 1.4 3.70 2.24 0.5 10.057 7.39 0.4 18.8 1090 988 832 629 45.3 24.095 11.2 3940 3580 3100 2510 1830 111 96.5 0.6 x 12.9 4.9 7.3 17.4 5.6 8.101 0.6 7.177 0.95 4.185 0.8 3.1 1120 879 627 0.6 2640 2270 1870 1440 1010 2.7 14.8 3.3 9.9 x 88.2 26.9 57.9 77.6 40.676 0.7 32.082 8.2 25.7 13.5 32.86 97.0 16.3 9.3 7.4 30.2 17.9 4.8 15.9 3880 3100 2650 2170 1660 1160 4.5 57.2 x 6.8 3.4 10.2 10.9 7.4 5.2 1520 1270 990 703 0.23 0.4 5.8 12.9 6.3 22.179 0.2 37.9 18.4 40.8 8.9 42.154 0.2 x 57.8 11.9 2 1/4 x 2 1/4 x 1/4 3/16 1/8 57.7 76.2 32.6 39.9 4.7 14.9 10.471 0.5 30.28 0.9 63.29 0.4 4.6 x 101.5 62.6 15.38 0.092 0.2 34.8 11.35 8.7 53.9 x 9.2 23.1 17.21 0.1 9.6 7120 6280 5630 4820 3850 2790 184 150 130 107 82.070 2 1/2 x 2 1/2 x 5/16 1/4 3/16 1/8 63.38 0.9 3 1/2 x 3 1/2 x 3/8 5/16 1/4 3/16 1/8 88.252 0.7 80.0 32.9 20.81 3.5 x 7.4 4.29 0.9 26.9 14.120 0.7 33.1 12.2 0.4 5.9 26.8 3.8 50.129 0.2 x 76.4 10.396 0.753 41.3 22.0 9.2 5.6 32.5 84.1 0.2 26.02 0.4 5.5 7.2 21.9 4.4 18.0 5.4 0.39 0.3 2260 2090 1850 1520 1130 77.1 37.4 4.8 54.24 0.9 38.5 21.9 7.7 9.8 27.2 x 9.6 8.8 21.Metric Dimensions and Section Properties of Square HSS Nominal Size Design Weight Wall Per Thickness Meter t US Customary SI / Metric Mass Per Meter Inches Millimeters kg kN mm 4 x 4 x 1/2 3/8 5/16 1/4 3/16 1/8 101.33 0.139 0.2 20.5 x 63.073 0. 59 246 13.4 7.8 5.045 5.7 0.13 140 117 9.1 6.4 3.4 8.045 0.0 5.8 0.169 7.2 4.9 18.6 8.1 7.70 10.7 9.8 3.8 6.4 3.6 432 322 0.16 13.5 0.2 5.1 x 38.6 6.2 8.0 3.8 11.02 14.13 4.1 62.3 15.7 9.051 0.6 0.7 15.87 0.7 543 398 0.19 0.67 7.3 0.18 0.07 17.58 16.049 0.19 2.036 4.6 0.7 8.5 x 44.2 7.72 445 390 305 23.14 0.25 3.9 970 767 550 0.19 1 3/4 x 1 3/4 x 3/16 44.0 9.6 4.0 5.8 3.11 0.4 3.3 x 4.035 0.0 18.3 x 41.5 4.4 10.2 3.043 3.63 5.16 1 5/8 x 1 5/8 x 3/16 1/8 41.6 13.5 x 4.130 0.054 4.205 12.8 x 4.4 3.9 5.8 3.1 6.5 8.29 0.310 0.6 8.026 4.8 x 31.4 14.0 4.5 13.12 18 .39 71.2 7.9 4.6 19.0 9.4 4.70 0.15 188 153 11.063 0.0 6.6 0.5 4.2 10.8 600 436 0.1 656 0.4 10.032 4.29 5.15 1 1/2 x 1 1/2 x 3/16 1/8 38.098 0.8 x 6.5 13.7 5.6 3.04 6.6 2.1 x 4.079 5.266 0.8 x 50.8 3.Metric Dimensions and Section Properties of Square HSS Nominal Size US Customary Inches Design Weight Wall Per Thickness Meter t SI / Metric Mass Per Meter Millimeters kg kN mm b/t h/t Torsional Torsional Surface Stiffness Shear Area Constant Constant Per J / 103 C / 103 Meter Area I / 106 S / 103 r Z / 103 mm2 mm4 mm3 mm mm3 mm4 mm3 m2 2 x 2 x 1/4 3/16 1/8 50.14 1 1/4 x 1 1/4 x 3/16 1/8 31.15 0.28 4.104 6.8 13.079 0. 000 x 0.3 8.7 54.750 x 0.6 81.4 54.1 18400 14000 566 435 2230 1710 175 176 2910 2220 1130000 869000 4460000 3420000 1.3 95.9 7.312 0.00 1.0 x 12.9 7.4 36.795 0.7 50.312 355.8 115.188 311.5 7.98 12.7 9.7 51.8 8.3 1.1 57.5 45.7 9.500 0.912 0.135 0.5 7.00 1.956 0.053 0.500 0.8 67.4 48.1 9.98 0.4 39.9 1.8 116.188 317.4 4.2 104.4 94.375 508.356 14.4 x 12.0 71.2 93.625 0.0 52.5 7.5 139.209 1.28 1.98 0.9 7.7 9.5 6.4 97.02 12.375 0.12 1.160 0.60 18.917 0.9 49.98 0.7 70.4 21.5 7.592 0.1 116.9 12.8 x 15.7 9.3 53.472 0.9 14600 12800 11100 9280 285 252 220 185 1400 1240 1080 909 140 140 141 141 1840 1620 1410 1180 570000 503000 439000 369000 2800000 2480000 2160000 1820000 1.4 36.697 0.625 0.9 7.12 1.2 x 15.312 406.7 9.5 x 15.250 x 0.00 1.4 16500 12500 410 315 1790 1380 158 159 2340 1790 819000 630000 3580000 2760000 1.1 67.000 x 0.8 8.8 8.664 11.922 0.9 6.9 35.1 42.98 0.60 1.1 48.1 37.9 x 12.8 8.8 11.1 13900 11200 8500 7100 5690 4260 154 127 98.500 0.2 60.4 5.7 9.9 975 800 621 524 424 321 105 106 107 107 108 108 1300 1060 813 683 550 414 303000 249000 193000 163000 132000 100000 1950000 1600000 1240000 1050000 847000 641000 0.0 1.02 1.7 11.500 0.9 4.00 1.4 35.9 12.9 5.936 0.2 x 12.9 4.9 38.4 4.6 1.9 4.582 0.8 118.1 36.28 1.9 123.438 0.3 108.9 27.5 155.250 0.5 26.1 53.363 14.1 12700 9690 8090 189 146 123 1060 820 690 122 123 123 1400 1070 897 377000 291000 245000 2120000 1640000 1380000 1.8 8.0 26.375 0.145 11.312 0.5 73.28 14.98 0.8 11.188 312.9 6.029 11.625 0.9 12.9 11600 8810 5890 141 109 74.1 0.1 26.3 49.5 1.708 0.Metric Dimensions and Section Properties of Round HSS Nominal Size US Customary SI / Metric Outside Outside Diameter Wall Diameter Wall Inches Millimeters Mass Per Meter Design Weight Wall Per Thickness Meter t kg kN mm D/t Area I / 106 S / 103 r Z / 103 Torsional Stiffness Constant J / 103 Torsional Shear Constant C / 103 Surface Area Per Meter mm2 mm4 mm3 mm mm3 mm4 mm3 m2 20.5 871 675 460 110 111 112 1150 883 597 282000 219000 149000 1740000 1350000 920000 1.0 77.98 0.375 0.12 12.1 82.8 11.474 0.761 11.500 0.061 0.500 0.500 0.312 0.4 5.9 53.491 11.0 50.693 0.357 14.8 8.521 1.000 x 0.2 14100 11300 8630 7210 5780 4330 162 133 103 86.44 16.9 7.500 x 0.482 0.8 8.0 1020 835 648 546 442 334 107 108 109 110 110 111 1360 1100 848 712 573 431 323000 265000 206000 173000 140000 106000 2040000 1670000 1300000 1090000 883000 668000 1.250 0.579 0.7 1.00 1.7 59.313 x 0.7 13800 11100 8450 7060 5660 4240 152 124 96.141 0.4 21.4 21.9 6.5 65.8 93.8 1.375 0.4 30.4 81.5 35.0 71.8 72.02 1.9 43.000 x 0.4 5.4 4.98 0.375 0.98 19 .5 7.250 323.6 x 12.7 985 809 628 529 428 324 105 106 107 108 109 109 1310 1070 822 690 556 418 308000 253000 196000 166000 134000 101000 1970000 1620000 1260000 1060000 856000 648000 0.98 0.365 1.1 40.375 457.5 72.250 0.500 0.7 42.375 0.7 70.98 0.28 1.0 48.98 0.44 1.00 12.8 10.0 42.722 0.0 59.5 70.7 9.4 34.9 107. 4 83.4 84.90 10.61 0.8 x 15.916 0.5 33.7 9.1 31.5 7.1 42.77 0.625 x 0.69 7.4 0.3 22.77 0.7 0.383 0.5 77.80 0.9 98.86 10.625 0.8 38.500 0.8 25.8 67.1 x 12.2 6.7 9.5 43.250 0.5 7.8 8.1 x 12.9 640 494 416 336 254 117000 91500 77500 63000 47800 958000 749000 634000 515000 391000 0.6 25.470 0.7 2.8 8.4 5.5 76.312 0.625 x 0.750 x 0.5 99.8 93.500 0.375 0.69 0.8 46.90 0.4 65.9 7.2 607 458 324 92.5 806 602 421 166000 125000 88400 1210000 916000 648000 0.375 0.3 9690 7150 4950 82.80 0.375 0.0 97.7 9.482 0.540 0.61 0.4 5.8 8.432 0.90 0.8 8.70 0.593 0.4 75.6 5.0 76.250 273.9 4.80 9.2 21.3 848 693 535 450 363 274 160000 132000 103000 87200 70800 53800 1260000 1040000 811000 687000 558000 423000 0.322 0.7 87.4 83.9 39.249 11.634 0.6 44.9 23.712 0.90 0.188 219.500 0.5 x 12.326 14.9 479 374 317 258 196 82.188 254.6 28.9 21.5 74.80 0.839 0.8 37.90 0.5 17.9 7.9 15.418 0.4 74.0 28.250 x 0.0 12600 10200 7740 6470 5190 3890 116 95.9 7.7 x 9.4 4.625 0.4 26.312 0.8 7680 5880 5050 3950 2970 41.4 32.5 23.147 8.5 8.7 11100 8980 6850 5730 4600 3450 79.9 508 393 340 268 203 82800 65000 56500 44900 34200 756000 594000 516000 410000 312000 0.5 7.5 28.8 75.8 34.250 0.86 0.1 378 297 258 205 156 73.8 66.3 47.644 0.8 62.9 12.80 0.750 x 0.8 38.0 30.9 41.1 523 406 342 276 209 86700 68000 57700 47000 35800 780000 612000 520000 423000 322000 0.7 9.1 44.5 93.372 0.2 37.1 19.6 8630 6590 5510 4420 3320 58.1 38.369 0.188 222.1 46.1 49.3 24.61 20 .0 x 15.6 49.9 6.5 75.9 629 520 406 343 279 212 84.289 14.6 60.9 6.5 28.6 57.8 8.5 7.5 1090 886 683 574 462 348 232000 191000 149000 125000 102000 77000 1620000 1340000 1040000 878000 711000 539000 0.038 0.278 11.70 8.800 0.6 33.77 0.6 5.6 35.312 0.8 11.5 64.625 x 0.9 4.375 0.7 65.1 29.4 55.90 0.8 64.2 32.69 0.0 41.375 0.0 0.5 8.9 23.329 0.4 5.8 85.9 4.4 20.5 7.9 12.5 0.77 0.375 0.9 84.5 812 668 520 439 356 270 96.4 5.6 28.250 0.410 0.4 4.7 88.5 7800 5970 5000 4010 3010 43.635 0.5 304 267 106 44200 39000 15800 457000 402000 163000 0.4 81.9 4.4 4.741 0.9 7.500 0.531 0.9 390 306 260 211 161 74.8 31.3 x 12.250 0.3 43.7 50.7 86.86 0.6 94.5 34.8 65.70 0.6 24.489 0.1 25.188 244.3 6.8 11.000 x 0.8 8.6 48.77 8.8 105.6 49.80 0.70 0.334 0.4 18.413 11.312 0.4 74.4 0.2 43.5 17.6 55.5 45.70 0.0 51.8 25.7 50.0 99.500 0.9 6.365 0.69 0.1 57.3 1.1 37.125 193.91 228 201 81.3 3.2 87.0 97.250 0.7 9.500 0.4 65.328 0.9 6.452 0.1 0.7 85.7 27.7 9.8 5170 4500 1740 22.4 4.4 18.5 42.Metric Dimensions and Section Properties of Round HSS Nominal Size US Customary SI / Metric Outside Outside Diameter Wall Diameter Wall Inches Millimeters Mass Per Meter Design Weight Wall Per Thickness Meter t kg kN mm D/t Area I / 106 S / 103 r Z / 103 Torsional Stiffness Constant J / 103 Torsional Shear Constant C / 103 Surface Area Per Meter mm2 mm4 mm3 mm mm3 mm4 mm3 m2 11.4 19.69 0.4 4.252 11.0 37.9 7.9 4.4 75.1 33.188 285.4 34.4 17.7 54.2 66.9 7.3 62.562 0.423 0.8 72. 3 65.8 25900 20700 17800 16100 14600 11200 7610 340000 272000 233000 211000 192000 147000 99900 0.6 58.6 5.9 11.48 0.4 61.4 4.0 9.60 7.7 9.0 24.48 0.2 57.8 60.1 6.1 279 220 188 153 117 63.5 x 12.5 7.0 0.7 25.8 19.429 0.375 0.336 0.5 11.4 8.4 5.5 53.1 11.0 17.8 34.8 51.9 57.9 6.Metric Dimensions and Section Properties of Round HSS Nominal Size US Customary SI / Metric Outside Outside Diameter Wall Diameter Wall Inches Millimeters Mass Per Meter Design Weight Wall Per Thickness Meter t kg kN mm D/t Area I / 106 S / 103 r Z / 103 Torsional Stiffness Constant J / 103 Torsional Shear Constant C / 103 Surface Area Per Meter mm2 mm4 mm3 mm mm3 mm4 mm3 m2 7.188 155.1 20.328 0.0 0.48 7.175 11.500 0.3 28.55 0.4 11.9 0.3 x 12.7 11.312 0.4 2.277 0.0 26.7 9.0 53.5 26.48 0.05 7.276 0.0 17.9 7.9 14.9 7.500 x 0.9 15.387 0.9 7.4 6.5 245 192 163 132 101 27700 22100 19000 15600 12000 357000 285000 244000 200000 154000 0.1 15.8 52.7 39.4 5.432 0.4 35.9 15.4 23.1 40.48 0.7 9.249 0.3 6150 4720 3960 3190 2400 1590 21.280 0.3 64.9 234 184 156 140 127 96.4 13.3 43.2 12.4 4.4 4.7 42600 33800 28800 23600 18000 12200 479000 380000 324000 265000 203000 137000 0.8 65.375 0.49 0.188 0.5 7.56 0.365 0.875 x 0.6 x 12.5 290 255 226 192 173 156 118 79.6 5.4 56.3 60.9 14.4 13.9 17.60 0.60 0.8 23.7 32.1 0.52 230 183 156 128 97.507 0.53 0.56 6.2 59.7 32.4 5.0 10.4 x 12.8 9.312 0.3 61.48 21 .7 38.8 59.56 0.9 4.8 8.251 0.0 9.7 59.9 7.349 0.197 11.53 0.2 51.78 5.4 2.9 4.49 0.2 31.9 6.4 35.0 52.15 212 189 169 144 130 118 90.9 7.49 0.6 29.8 3.8 0.125 168.231 0.0 56.3 64.5 7.318 0.6 x 12.128 11.500 0.478 0.8 50.5 38.250 0.9 14.125 152.2 25.5 13.312 0.3 51.3 55.3 16.7 9.0 58.9 22.9 13.4 2.8 51.9 4.9 4.000 x 0.2 43.6 51.500 0.1 8.312 0.5 58.375 0.1 25.53 0.30 5.500 0.6 5210 4010 3370 3020 2720 2050 1360 13.1 21.53 0.5 56.9 12.125 177.250 0.4 33.55 6.7 58.4 64.1 9.1 27.188 174.3 52.250 0.55 0.4 5330 4100 3450 2770 2090 13.1 20.375 0.88 8.8 8.48 0.1 6.09 240 190 162 133 101 68.9 50.7 9.379 0.250 0.8 10.625 x 0.282 0.497 0.418 0.6 11.2 8.9 7.61 5.5 20.6 57.53 6.6 19.115 11.2 17.53 0.6 21.9 6.216 11.416 0.9 4.6 23.201 0.01 6.500 0.500 0.56 0.0 49.4 6.56 0.6 23.171 0.5 17.5 21.9 14.7 37.2 313 245 207 168 127 40200 31900 27200 22300 17000 460000 365000 312000 255000 195000 0.5 61.135 11.3 35700 31800 28400 24300 22000 19900 15200 10300 425000 378000 337000 288000 261000 236000 181000 123000 0.190 0.7 6040 4630 3890 3130 2350 20.8 x 12.8 8.8 8.8 34.280 0.439 0.6 39.7 42.4 4.250 0.306 0.8 0.0 52.8 8.312 0.4 4.60 0.250 0.53 0.48 0.6 29.3 58.5 7.9 6.8 377 294 248 201 152 53100 42000 35700 29200 22300 558000 441000 375000 306000 234000 0.5 18.49 6.55 0.53 0.81 170 136 117 106 95.7 42.000 x 0.0 30.5 7.9 4.8 61.4 4.546 0.1 20.56 0.125 x 0.188 0.5 7.98 178 142 122 100 76.325 0.2 48.8 73.8 3.55 0.8 55.8 326 254 215 174 132 88.4 25.285 0.9 7.94 7.375 0.226 0.188 0.5 28.49 0.7 60.2 25.5 28.188 190.265 0.4 5.312 0.4 16.2 28.8 44.4 14.8 33.260 0.3 6620 5080 4260 3420 2570 26.9 7.60 0.1 22.3 16.8 3.375 0.6 50.0 5800 5070 4460 3740 3350 3010 2270 1510 17.6 11.6 52.61 3. 188 0.7 9.6 6.1 4.220 0.076 8.188 0.113 8.192 0.44 5.8 30.5 6.0 50.2 35.157 0.125 127.250 0.5 28.8 21.1 51.0 8.86 1.2 15.4 41.000 x 0.2 20.127 0.2 27.2 53.79 2.5 23.3 x 9.44 0.32 0.3 20.5 60.4 2.125 114.125 101.181 0.1 19.312 0.1 31.1 40.3 21.5 21.2 34.4 42.4 46.1 62.2 44.9 45.6 4.3 17.4 49.8 14.9 41.24 4.59 1.5 38.31 115 84.40 0.2 86.30 1.44 2.2 3700 2590 1890 1390 8.4 5.8 8.7 17.4 2670 1910 1520 1010 3.2 18.9 12.237 0.9 46.3 194 153 109 19600 15700 11400 280000 225000 164000 0.04 1.2 36.8 65.4 43.44 0.112 0.94 4.60 2.0 5.3 5.0 14.99 4.0 7.7 22.086 8.9 6.500 0.9 42.2 19.4 48.9 34.303 0.2 48.3 11.6 6.36 0.44 0.8 4270 3300 2780 2320 2240 1690 1130 7.32 0.142 0.32 0.4 2.0 7590 5660 4590 3150 133000 99100 80000 55100 0.2 19.375 0.8 48.7 36.7 9.86 5.0 39.228 0.4 36.83 2.270 0.132 0.3 x 8.1 32.1 38.188 0.36 4.8 156 112 82.9 4.2 4.8 3.32 0.44 5.1 34.7 13.36 0.8 15.6 39.9 43.313 0.6 4.0 16300 11900 8880 6600 231000 168000 126000 93700 0.9 14.32 0.7 5.7 14300 11600 9980 8490 8250 6380 4360 225000 182000 157000 134000 130000 100000 68600 0.8 3.1 11.500 x 0.226 0.2 19.40 4.1 34.9 21.1 13.193 0.5 6.40 0.9 157 124 106 89.5 7.9 4740 3660 2560 9.500 0.0 13.0 2350 2190 1770 1690 1600 1570 1340 899 2.1 35.0 4.6 4.0 5.5 15.9 6.7 38.6 x 8.8 8.9 7.3 65.4 90.9 10.0 x 12.8 27.6 66.5 23.44 3.2 11.6 5.4 6.258 0.4 3.212 11.4 4.000 x 0.9 70.9 39.8 3.32 22 .1 5.7 0.4 33.8 46.6 66.7 49.6 33.0 14.40 0.72 140 112 81.139 0.18 113 91.16 5.8 42.250 0.79 4.10 51.9 5.187 0.5 13.36 0.258 0.9 47.215 0.3 40.0 34.44 0.563 x 0.4 2.6 66.5 7.4 30.8 0.6 19.6 8.2 33.147 0.1 44.2 78.337 0.375 0.40 0.8 54.9 16.4 34.337 0.19 2.220 0.0 6.40 0.4 16.237 0.7 x 12.15 5.32 0.83 1.Metric Dimensions and Section Properties of Round HSS Nominal Size US Customary SI / Metric Outside Outside Diameter Wall Diameter Wall Inches Millimeters Mass Per Meter Design Weight Wall Per Thickness Meter t kg kN mm D/t Area I / 106 S / 103 r Z / 103 Torsional Stiffness Constant J / 103 Torsional Shear Constant C / 103 Surface Area Per Meter mm2 mm4 mm3 mm mm3 mm4 mm3 m2 5.4 6.32 0.7 18.44 0.258 139.40 0.134 141.390 0.9 43.500 x 0.2 22.6 40.78 7.4 26.299 0.9 23.12 3.130 0.6 37.3 5190 4890 4080 3900 3730 3670 3180 2190 102000 96200 80300 76900 73400 72200 62600 43100 0.95 1.188 0.8 0.096 11.6 28.58 66.9 6.8 3.4 47.351 0.375 0.8 0.6 0.5 9.158 0.1 48. 6 3.9 3.9 12.2 4.23 0.Metric Dimensions and Section Properties of Round HSS Nominal Size US Customary SI / Metric Outside Outside Diameter Wall Diameter Wall Inches Millimeters Mass Per Meter Design Weight Wall Per Thickness Meter t kg kN mm D/t Area I / 106 S / 103 r Z / 103 Torsional Stiffness Constant J / 103 Torsional Shear Constant C / 103 Surface Area Per Meter mm2 mm4 mm3 mm mm3 mm4 mm3 m2 3.188 0.56 755 689 607 517 432 25000 22900 20100 17200 14300 0.5 16.0 6.3 10.20 2.8 4.088 0.1 4.8 14.6 2.4 14.8 13.6 9.054 5.4 0.00 20.6 22.2 11.1 15.9 5.047 5.5 15.1 5.2 30.083 0.216 0.13 23 .125 73.085 0.149 0.2 24.203 0.6 13.3 x 3.28 0.060 0.4 10.5 3170 3080 2660 2370 2250 2090 1450 71400 69200 59900 53200 50600 47000 32600 0.3 x 6.54 1.435 24.7 16.0 6.4 6.250 0.3 16.5 15.0 15.3 10.20 0.4 3.2 25.068 0.2 2.6 19.6 5.4 2.0 11.8 14.23 2.5 21.447 0.8 3.5 0.3 17.6 6.6 25.098 0.2 16.1 8.7 35.03 15.145 48.7 4.8 4.0 6.5 22.24 0.103 0.083 0.2 x 7.24 0.188 0.8 3.304 0.4 25.8 27.12 1.8 5.875 x 0.1 16.3 19.040 3.5 20.16 19.24 0.24 0.3 12.1 8.87 234 10100 0.5 8.0 9.5 7.345 0.2 1240 1030 948 639 0.313 0.000 x 0.134 0.125 60.8 29.216 12.9 30.8 0.660 x 0.8 11.2 10.188 0.218 0.2 23.3 24.4 7.0 17.0 31.9 5.8 20.500 x 0.9 10.19 1.9 x 8.126 0.9 4.2 13.250 0.18 1.500 x 0.393 19.140 42.900 x 0.8 20.094 0.59 1.4 5.7 34.2 4.9 4.8 3.128 0.7 10.6 25.05 0.8 1010 900 773 641 523 0.377 0.105 0.4 49.125 63.108 0.8 0.9 34.9 17.2 480 0.930 0.203 0.375 x 0.2 4.2 16.0 29.0 7.073 0.7 8.5 11.24 0.066 7.9 15.24 2.4 4.9 5.125 88.7 895 717 508 28200 22600 16000 0.9 25.152 0.4 3.7 1890 1820 1540 1340 1270 1170 784 1.23 0.7 29.5 4.4 10.1 11.4 21.3 21.33 1.250 0.6 24.250 0.188 0.19 0.120 76.250 0.2 12.4 5.0 29.7 19.7 25.188 0.8 10.3 1410 1200 1120 786 38700 32900 30700 21500 0.0 21.8 4.20 0.111 0.2 1540 1300 1140 1080 992 821 734 646 0.19 0.9 14.1 5.4 21.6 30.300 0.4 29.089 0.0 18.2 x 3.6 9.4 3.58 7.9 4.3 25.7 14.3 19.122 5.154 0.24 0.6 3.9 11.3 28.0 12.1 0.064 0.5 x 6.28 0.254 14.2 8.1 4.689 0.1 20.4 2.1 5.1 5.300 0.068 0.5 5.8 26.4 18.157 0.24 0.359 0.6 40.3 47.560 0.9 1070 817 552 0.28 3.5 0.4 19.19 0.5 7.8 3.259 0.9 6.079 0.216 0.4 5.28 0.811 0.1 17.2 9.4 21.64 13.0 12.3 8.5 15.6 6.4 5.01 154 7280 0.28 0.203 0.0 34.0 26.2 4.077 3.23 0.053 7.3 23.6 15.1 1860 1620 1450 1380 1280 1080 980 871 48800 42600 38000 36200 33700 28500 25700 22900 0.8 26.8 24.5 5.9 12.725 35.9 10.9 29.28 0.044 5.601 0.642 0.15 1.4 24.8 3.28 0.2 25.542 0.7 12.490 0.19 0.4 15.034 3.4 4.4 2.9 3.4 0.9 11.4 20.724 0.0 x 6.705 0.8 23.8 24.8 403 0.053 0. 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