Important Electrical Properties of CRGO & Hi - B CRGO Grades Steel

April 2, 2018 | Author: Raghavendra Saraf | Category: Sheet Metal, Engineering Tolerance, Transformer, Materials, Building Engineering


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Important Electrical Properties of CRGOCold Rolled Grain Oriented Steel & Hi - B CRGO Grades Core Loss Details of Popularly used CRGO Electrical steel. Manufacturing mills of CRGO Grain Oriented Electrical Steel guarantee the Core Loss figure at flux density of 1.5 Tesla in Case of CRGO Conventional Grain Oriented Electrical Steel Grades and in Case CRGO HIB Grades and CRGO HIB LS Electrical Steel at 1.7 Tesla,50 HZ. Thickness CRGO Grade MM Assumed KG/DM3 At 1.7T Minimum Induction at 800 A / mT 0.9 1.88 Maximum Core Loss At 1.5T 0.23 23ZDKH90 0.23 -0.009 23ZH90 0.9 1.88 23ZH95 0.95 1.88 M-0H 1 1.88 0.71 1.06 1.8 M-2 0.75 1.12 1.8 M-3 0.79 1.04 1.8 0.95 1.88 27ZH95 0.95 1.88 27ZH100 1 1.8 M-0H 1.03 1.88 M-1 0.27 27ZDKH95 -0.0106 7.65 7.65 7.65 97 1.16 1.88 M-2H 7.45 1.8 M-5 0.11 1.28 1.27 1.8 M-4 0.21 1.9 1.39 1.65 M-3 0.88 1.8 M-1H 1.65 1.17 1.88 M-3H 1.3 -0.88 M-1H 1.88 M-3 0.8 M-4 0.8 M-5 1.09 1.23 1.M-1H 0.88 M-2H 1.85 1.88 1.8 30ZH100 1 1.16 1.0118 7.88 M-0H 1.83 1.32 1.89 1.01 .05 1. 20 mm (0. 0. German (DIN) and British Standards which specify CRGO grade and Thickness. Dimensions and Tolerances of CRGO Electrical Steel CRGO MOTHER COILS CRGO Sheets 0. American (ASTM). Given below the details of dimensions and tolerances as per JIS C 3553.23 mm (0.).57 1.0138 in. to available with range) 1.0091 in. Click here for More Grades of CRGO Important physical properties of CRGO Steel Density gm/c3 7.0071 in.10 Resistivity micro Ohm-centimeter 48.65 Silicon content % 3.8 Technical Details of CRGO CRGO Cold Rolled Grain Oriented Electrical Steel is available in various grades (Generally called M3.27 mm) 96. 0.60 Kg/mm2 Ultimate Tensile Strength 90° to Rolling Direction 38. and 1000 Width mm (39 in.0079 in.18 mm (0.20 Kg/mm2 Stacking factor % M4 (.050mm (41 in.) 914 mm (36 in. ) Inside Coil Diameter 508 mm (20 in.M-6 1.30 mm (0. M4.35 Thickness mm (0.00 Stacking factor % M5 (. ) 914 mm (36 in. ) 0.30 mm (0.35 mm) 97. and 1000 Width mm (39 in. ) Thickness 0. ) 0.11 1.).27 mm (0.).50 Stacking factor % M6 (. M5 & M6).0118 in. ) 0.00 CRGO materials come either in the form of coils or sheets. Followed link below "more grades of CRGO" for Major international standards such as Japanese (JIS).00 Ultimate Tensile Strength 0° to Rolling Direction 32.). ) Length will be available Length according to negotiation .35 mm (0. ) (Standard width from 50 mm(2 in.).).0138 in.0118 in.0106 in. 0.30 mm) 96. C.03 +0.03 Note : Stipulation of camber shall be applied only for the crgo steel strips (width 75mm over).03 0.35 +0. These curves are of immense help to Transformer designers. Conventional CRGO Grades Generally M3.50 0. and available on customer request.02 under under 0.03 0.18 +0.35 +0.02 or or +0. TOLERANCE Deviation of Camber in thickness any 2 Width Thickness Shear Thickness in Width metres mm mm Burr mm transverse mm (Slit mm direction Products) mm mm 0.35 +0.02 0.18 +0.20 0. Magnetization at various flux densities. However recently due to environmental protection.03 0.02 0.20 +0.02 over 0.02 150 +0.27 +0.20 +0.03 0.30 +0. M4.04 0.7 T CRGO manufacturers also give curves of indicating Watt Losses ad A.03 under under 0.23 +0.02 over 0.18 +0.20 +0. M6 are used regularly for Transformer Cores in Transformers.03 1.02 over 0.CRGO Grain Oriented Electrical Steel Tolerances in Dimensions & Shape of CRGO Steel Conform to JIS C 2553.5 T and 1.6 750 0.23 +0.02 0.30 +0.03 400 +0. M5.27 +0.02 0. energy savings are becoming a very important factor and minimizing core loss in Transformers is becoming a must.Nippon Steel Corporation .02 0.02 0. Besides the Watt Losses of CRGO at specific flux densities of 1.23 +0.20 +0.03 or under to 400 0.30 0.35 +0.03 0.02 150 0.30 +0.03 or under 0 0.0 or or 0.23 +0.27 +0.02 0.03 0.30 +0.18 +0.27 +0.03 or under to 750 0. 78 0.92 98.91 1.81 0.00 0.90 0.90 0.30 12 0.93 0.63 0.91 1.53 1.57 0.0 0.16 0.09 1.35 11 Max.01 1.5 0.4 0.69 0.7 0.05 1.44 0. Table 3 gives magnetic properties of CRGO Hi-B material.3 98.57 0.91 0.92 97.35 0.87 0.38 0.61 0.95 0.91 0.38 0.72 0.44 0.88 0.95 1.91 0.52 1.34 0.74 0.59 0.B CRGO MATERIALS : Grade 0.80 0.41 0. Typic al Typical W W W W W (W/Kg (W/Kg (W/Kg (W/Kg (W/Kg B (T) ) ) ) ) ) mm mil 0.85 0.58 0.99 1.68 1.27 11 0.which guarantee low Watt Losses at 1.48 1.55 0.38 0.74 0.90 0.13 0.98 1.58 0.39 0.95 0.84 0.84 0.53 1.43 0.65 0.5 Tesla flux density.90 0.03 1. Hi .62 0.64 0. Such materials are called CRGO Hi-B materials.90 0.00 1.91 1.03 0.39 0.46 1.91 97.37 0.5 .92 1.54 1.65 0.88 0.93 0.44 0.39 0.48 1.78 0.60 0.53 1.85 0.53 1.92 1.1 98.85 0.52 0. Popular Hi-B grades used in India are 23 MOH and 27 MOH.91 1.46 1.51 1.91 97.73 0.34 0.92 0.91 97.92 98.62 0.95 0.35 0.JAPAN has come out with low loss Hi-B Grades materials.9 0.66 0.59 0.91 0.23 9 Laminatio n Factor Core Loss Thicknes s 23ZDKH8 5 23ZDKH9 0 23ZDMH 85 23ZDMH 90 23ZH90 23ZH95 23M-OH 27ZDKH9 0 27ZDKH9 5 27ZDMH 90 27ZDMH 95 27ZH95 27M-OH 27M-1H 30ZH100 30M-OH 35M-1H Typical % 0.90 0.
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