锻制圆钢和方钢尺寸规格.doc

《锻制圆钢和方钢尺寸规格.doc》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、锻制圆钢和方钢尺寸规格(摘自GB/T908—1987)(表一)圆钢直径或方钢边长/mm精度组别理论重量/kg·m-1(密度7.85g/cm3)1组2组允许偏差/mm圆钢方钢50+1.5-1.0+2.0-1.015.419.655+1.5-1.0+2.0-1.018.623.760+1.5-1.0+2.0-1.022.228.365+2.0-1.0+2.5-1.026.033.270+2.0-1.0+2.5-1.030.238.575+2.0-1.0+2.5-1.034.744.280+2.0-1.0+2.5-

2、1.039.550.2852.5-1.0+3.0-1.044.556.7902.5-1.0+3.0-1.049.963.6952.5-1.0+3.0-1.055.670.81002.5-1.0+3.0-1.061.778.5105+2.5-1.5+3.0-1.568.086.5110+2.5-1.5+3.0-1.574.695.0115+2.5-1.5+3.0-1.581.5104120+2.5-1.5+3.0-1.588.8113(表二) 圆钢直径或方钢边长/mm精度组别理论重量/kg·m-1(密度7.85

3、g/cm3)1组2组允许偏差/mm圆钢方钢125+3.0-1.5+3.5-1.596.3123130+3.0-1.5+3.5-1.5104133135+3.0-1.5+3.5-1.5112143140+3.0-1.5+3.5-1.5121154145+3.0-2.0+4.0-2.0130165150+3.0-2.0+4.0-2.0139177160+3.0-2.0+4.0-2.0158201170+4.0-2.0+5.0-2.0178227180+4.0-2.0+5.0-2.0200254190+5.0-3.

4、0+6.0-3.0223283200+5.0-3.0+6.0-3.0247314210+5.0-3.0+6.0-3.0272346220+5.0-3.0+6.0-3.0298380230+6.0-3.0+7.0-3.0326415240+6.0-3.0+7.0-3.0355452250+7.0-3.0+8.0-3.0385491