281 QGeneral Steel Materials Type Material Code Shapes Unit Standard Dimensions Rolled Steel for General Structure SS400 Flat Bar t 6, 9, 12, 13, 14, 16, 19, 22, 25, 28, 30, 32, 35, 38, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105 Square Bar _ 9, 13, 16, 19, 22, 25, 32, 38, 44, 50, 65, 75, 90, 100 Polished Steel Bar (Cold-Drawn) SS400D Flat and Square Steel Bar t Width W 2 6, 8, 10, 12, 16, 20 3 6, 8, 9, 10, 12, 13, 16, 19, 22, 25, 32, 38, 50 4 10, 13, 16, 19, 20, 22, 25, 32 4.5 11, 13, 16, 19, 22, 25, 32, 38, 50 5 8, 10, 13, 16, 19, 20, 22, 25, 30, 32, 38, 50 6 9, 10, 13, 16, 19, 20, 22, 25, 32, 38, 44, 50, 60, 65, 75, 90, 100, 125 8 10, 12, 13, 16, 19, 22, 25, 30, 32, 38 9 12, 13, 16, 19, 22, 25, 32, 38, 44, 50, 60, 65, 75, 90, 100, 125 10 13, 15, 16, 20, 22, 25, 30, 32, 38, 40, 50, 60, 65, 100 12 16, 19, 22, 32, 38, 44, 45, 50, 60, 65, 75, 90, 100, 125 16 19, 22, 25, 32, 38, 44, 50, 60, 65, 75, 90, 100, 125 19 22, 25, 32, 38, 44, 50, 60, 65, 75, 90, 100, 125 22 25, 32, 38, 44, 50, 60, 65, 75, 90, 100, 125 25 32, 38, 44, 50, 60, 65, 75, 90, 100, 125 30 50, 65, 75, 100, 125 32 50, 65, 75, 100, 125 38 50, 65, 75, 100, 125 Square Bar _ 2.5, 3, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 28, 30, 32, 34, 35, 36, 38, 40, 42, 44, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 100, 110, 120, 130 Hexagonal Bar Opposite side H 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19, 21, 22, 23, 24, 26, 27, 29, 30, 32, 35, 36, 38, 41, 46, 50, 54, 55, 58, 60, 63, 65, 67, 70, 71, 75, 77, 80, 85, 90, 95, 100, 115 Round Bar D 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 42, 43, 44, 45, 46, 48, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 130, 140, 150, 160, 170, 180, 190, 200 Cold-Rolled Steel Plate SPCC Steel Plate t 0.4, 0.5, 0.6, 0.7, 0.8, 1, 1.2, 1.6, 2, 2.3, 3.2 Hot-rolled Steel Plate SPHC Steel Plate t (1.2), 1.6, 2.3, 2.6, 3.2, 4.5 Carbon Steel for Machine Structural Use S45C-D (Polished) Round Bar D 2, 2.5, 3, 3.5, 4, 4.5, 6, 7, 8, 9, 9.5, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35, 36, 38, 40, 42, 44, 45, 46, 48, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130 S50C Flat Bar t 6, 9.5, 12.7, 13, 16, 19, 22, 25, 27, 32, 38, 45, 50, 55, 65, 75, 85, 95, 105, 115, 125, 135, 145, 155, (165), (175), (185), (205) Square Bar _ 12.7, 13, 16, 19, 25, 28, 32, 38, 44, 50, 55, 65, 75, 90, 100, 110, 120, 130, 155 Carbon Tool Steel SKS93 Flat Bar t 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 16, 19, 22, 25, 27, 32, 38, 43, 50, 53, 65, 75, 90, 105, 130, 155 SKS93 Square Bar _ 10, 13, 16, 19, 22, 25, 28, 32, 38, 45, 50, 55, 65, 75, 90, 105, 130, (155), (210) SK4-DG8 Round Bar D 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 26, 28, 30, 32, 36, 38, 40, 42, 45, 48, 50, 55, 60, 65, 70, 75, 80 Alloy Tool Steel SKS3 Flat Bar t 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 16, 19, 22, 25, 27, 32, 38, 43, 50, 53, 65, 75, 90, 105, 130, 155, (160) Square Bar _ 10, 13, 16, 19, 22, 25, 28, 32, 36, 38, 45, 50, 55, 65, 75, 90, 105, 130, (155), (210) Round Bar D 13, 16, 19, 22, 25, 28, 32, 38, 42, 46, 50, 55, 60, 65, 70, 80, 85, 90, 100, 110, 120, 130, 150, 160, 180 Chrome Molybdenum Steel SCM435 Hexagonal Bar Opposite side H 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19, 21, 22, 23, 24, 26, 27, 30, 32, 35, 36, 38, 41, 46, 50, 54, 55 Round Bar D 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 32, 34, 35, 36, 38, 40, 42, 45, 46, 48, 50 Sulfuric and Sulfur Compound Free Cutting Steel SUM24L Round Bar D 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 22, 23, 24, 25, 26, 28, 30, 32, 34, 35, 36, 38, 40 High Carbon Chrome Bearing Steel SUJ2 Round Bar D 13, 16, 19, 22, 25, 28, (30), 32, (34), 36, 38, 42, (44), 46, (48), 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 110, 120, 130, 140, 150, (160), (170), (180), (190), (200), (210), (220), (230), (240), (250) Materials Standard Material Sizes
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