Rockwell Hardness (HRC, HRB) to Brinell Hardness (HB or BHN) Conversion

Rockwell Hardness (HRC, HRB) to Brinell Hardness (HB or BHN) ConversionAbout Us Casting Products Casting Workshop Machining Workshop Inspection Certificate Blog Articles Contact Us Rockwell Hardness (HRC, HRB) to Brinell Hardness (HB or BHN) Conversion Main Casting Products Hardness is very important for producing rough metal castings, heat treatment and machining process. Stove Burner Rockwell Hardness (HRC and HRB) and Brinell Hardness (HB or BHN) are most commonly used for steel Cast Iron Plate and iron castings. Manhole Cover Casting Although there is no accurate conversion tables and equations, but we can recommend the following Warping Head Casting formulas and comparison tables according to the experience and standards. Ductile Iron Belt Pulley Brake Drum Cast Iron Flywheel Formula A - Convert HRC into HB Boiler Ash Door Cast Iron Stove Grate Rockwell C Hardness (HRC) Brinell Hardness (HB) From 21 to 30 HB = 5.970 * HRC + 104.7 From 31 to 40 HB = 8.570 * HRC + 27.6 Cast Iron Brackets From 41 to 50 HB = 11.158 * HRC + 79.6 Cast Iron Weight From 51 to 60 HB = 17.515 * HRC - 401 Tractor Gearbox Pump Body Gear Casting Large Cast Steel Bracket Formula B - Convert HRB into HB Cast Iron Drainage Pipe Flange Castings Rockwell B Hardness (HRB) Brinell Hardness (HB) From 55 to 69 HB = 1.646 * HRB + 8.7 From 70 to 79 HB = 2.394 * HRB - 42.7 From 80 to 89 HB = 3.297 * HRB - 114 From 90 to 100 HB = 5.582 * HRB - 319 Cast Iron Pipe Fittings Burner Grates for Gas Stove Grey Iron Counter Weight Cast Iron Axle Support The following two conversion tables come from standard ASTM A 370. Table A is the comparison between Rockwell C Hardness, Brinell Hardness, Vickers Hardness and tensile strength (Rm). Table B is the comparison between HRB, BH, HV and Rm. Cast Iron Blocks Gas Burner Cast Iron Truck Castings Cast Iron Tractor Parts Cast Iron Stove Parts Pump Shell and Valve Body Table A - HRC to HB, HV, Rm Cast Iron Umbrella Base Cast Iron Pan, Cookware HRC Hardness HB Hardness HV Hardness Rm Tensile Strength Diamond penetrator Brinell 3000 Kgf Vickers 30 N / mm2 MPa 20 226 238 760 21 231 243 770 22 237 248 790 23 243 254 810 24 247 260 820 25 253 266 850 26 258 272 860 27 264 279 880 http://www.iron-foundry.com/hardness-hrc-hrb-hb.html[2/6/2012 12:10:49 PM] Boiler Soot Collector html[2/6/2012 12:10:49 PM]     .Rockwell Hardness (HRC.iron-foundry. HRB) to Brinell Hardness (HB or BHN) Conversion   28 271 286 900 29 279 294 930 30 286 302 950 31 294 310 970 32 301 318 1010 33 311 327 1030 34 319 336 1050 35 327 345 1080 36 336 354 1110 37 344 363 1140 38 353 372 1180 39 362 382 1220 40 371 392 1250 41 381 402 1300 42 390 412 1340 43 400 423 1390 44 409 434 1430 45 421 446 1480 46 432 458 1520 47 442 471 1580 48 455 484 1640 49 468 498 1700 50 482 513 1760 51 496 528 1820 52 512 544 1880 53 525 560 1950 54 543 577 2010 55 560 595 2070 56 577 613 2160 57 595 633 2240 58 615 653 2330 59 634 674 2420 60 654 697  - 61 670 720  - 62 688 746  - 63 706 772  - 64 722 800  -  65 739 832  - 66  - 865  - 67  - 900  - 68  - 940  - http://www.com/hardness-hrc-hrb-hb. HV.com/hardness-hrc-hrb-hb. HRB) to Brinell Hardness (HB or BHN) Conversion Table B . Rm HRB Hardness HB Hardness HV Hardness Rm Tensile Strength Ball 1 / 16 " Brinell 3000 Kgf Vickers 30 N / mm2 MPa 49 92  - 320 51 94  - 330 54  -  -  - 55 100 100 340 56 101 101  - 57 103 103 350 58 104 104  - 59 106 106 360 60 107 107  - 61 108 108  - 62 110 110 370 63 112 112  - 64 114 114  - 65 116 116 385 66 117 117 395 67 119 119 400 68 121 121 405 69 123 123 415 70 125 125 420 71 127 127 425 72 130 130 435 73 132 132 440 74 135 135 450 75 137 137 455 76 139 139 460 77 141 141 470 78 144 144 475 79 147 147 485 80 150 150 495 81 153 153 505 82 156 156 530 83 159 159 550 84 162 162 560 85 165 165 565 86 169 169 570 87 172 172 580 88 176 176 590 89 180 180 605 http://www.iron-foundry.Rockwell Hardness (HRC.HRB to HB.html[2/6/2012 12:10:49 PM] . ball 10 mm.diamond penetrator 120°.diamond penetrator 136°. Resin Sand Casting. HB . which is the same meaning as HB.Brinell Hardness Number. Ductile Iron Casting. Shell Molding.com/hardness-hrc-hrb-hb..html[2/6/2012 12:10:49 PM] . Gray Iron Casting. load 294 N (30 kgf) duration 15 seconds.    SITEMAP | Iron Foundry. LTD.iron-foundry.ball 1/16’’. Cast Iron Price http://www. Automatic Molding. load 980 N (100 kgf) duration 30 seconds. Home | More Articles    © DANDONG RUIDING FOUNDING CO.400N (3000 kgf) durata 15 seconds. load 29. Iron Castings. BHN . load 1470 N (150 kgf) duration 30 seconds. Steel Castings. HRB) to Brinell Hardness (HB or BHN) Conversion 90 185 185 615 91 190 190 620 92 195 195 635 93 200 200 650 94 205 205 675 95 210 210 690 96 216 216 705 97 222 222 715 98 228 228 750 99 234 234 785 100 240 240 800 HRC . All Rights Reserved. HRB . Green Sand Casting. HV .Rockwell Hardness (HRC.