热轧棒规格型号参照表(ASTM? A276 / A484)
Model and Specification Table of Hot-Rolled Bar
w = 0.00623 × d2
直径mm Diameter | 重量kg/m Weight | 直径mm Diameter | 重量kg/m Weight | 直径mm Diameter | 重量kg/m Weight | 直径mm Diameter | 重量kg/m Weight | 直径mm Diameter | 重量kg/m Weight |
φ8 | 0.399 | φ32 | 6.380 | φ80 | 39.872 | Φ145 | 130.986 | φ230 | 329.567 |
φ10 | 0.623 | φ35 | 7.632 | φ85 | 45.012 | φ150 | 140.175 | φ240 | 358.848 |
φ12 | 0.897 | φ38 | 8.996 | φ90 | 50.463 | φ155 | 149.676 | φ250 | 389.375 |
φ14 | 1.221 | φ40 | 9.968 | φ95 | 56.226 | φ160 | 159.488 | φ260 | 421.148 |
φ15 | 1.402 | φ42 | 10.99 | φ100 | 62.3 | φ165 | 169.612 | φ270 | 454.167 |
φ16 | 1.595 | φ45 | 12.616 | φ105 | 68.686 | φ170 | 180.047 | φ280 | 488.432 |
φ18 | 2.019 | φ48 | 14.354 | φ110 | 75.383 | φ180 | 201.852 | φ300 | 560.7 |
φ20 | 2.492 | φ50 | 15.575 | φ115 | 82.392 | φ185 | 215.626 | φ350 | 763.715 |
φ22 | 3.015 | φ55 | 18.846 | φ120 | 89.712 | φ190 | 224.903 | φ400 | 996.8 |
φ24 | 3.588 | φ60 | 22.428 | φ125 | 97.344 | φ195 | 236.896 | | |
φ25 | 3.894 | φ65 | 26.322 | φ130 | 105.287 | φ200 | 249.2 | | |
φ28 | 4.884 | φ70 | ?30.527 | φ135 | 113.542 | φ210 | 274.743 | | |
φ30 | 5.607 | φ75 | 35.044 | φ140 | 122.108 | φ220 | 301.532 | | |
锻制圆棒和方钢尺寸、外形允许偏差(GB/T908—1987)?
Size and Shape Tolerance of Forging Round and Square Steel (GB/T908—1987)
单位(Unit): mm
圆钢直径、方钢边长 Diameter、Size Width | ?允许偏差Tolerance |
?精度组别Precision level |
1组I level | 2组II level |
>50—60 | +1.5 -1.0 | +2.0 -1.0 |
>60—80 | +2.0 -1.0 | +2.5 -1.0 |
>80—100 | +2.5 -1.0 | +3.0 -1.0 |
>100—120 | +2.5 -1.5 | +3.0 -1.5 |
120—140 | +3.0 -1.5 | +3.5 -1.5 |
>140—160 | +3.0 -2.0 | +4.0 -2.0 |
>160—180 | +4.0 -2.0 | +5.0 -2.0 |
>180—200 | +5.0 -2.0 | +6.0 -2.0 |
>200—220 | +5.0 -3.0 | +6.0 -3.0 |
>220—240 | +6.0 -3.0 | +7.0 -3.0 |
>240—250 | +7.0 -3.0 | +8.0 -3.0 |