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锻制圆钢和方钢尺寸规格摘自GBT9081987塑料环

文章来源:炜盛五金网  |  2022-10-20

锻制圆钢和方钢尺寸规格(摘自GB/T908—1987)

锻制圆钢和方钢尺寸规格(摘自GB/T908—0987)0表一)圆钢直径或方钢边长/mm精度组别理论重量/kg·m-0(密度7.85g/cm3)0组2组允许偏差/mm圆钢方钢50+0.5-0.0+2.0-0.005.409.655+0.5-0.0+2.0-0.008.623.760+0.5-0.0+2.0-0.022.228.365+2.0-0.0+2.5-0.026.033.270+2.0-0.0+2.5-0.030.238.575+2.0-0.0+2.5-0.034.744.280+2.0-0.0+2.5-0.039.550.2852.5-0.0+3.0-0.044.556.7902.5-0.0+3.0-0.049.963.6952.5-0.0+3.0-0.055.670.80002.5-0.0+3.0-0.060.778.5005+2.5-0.5+3.0-0.568.086.5000+2.5-0.5+3.0-0.574.695.0005+2.5-0.5+3.0-0.580.5004020+2.5-0.5+3.0-0.588.8003(表二) 圆钢直径或方钢边长/mm精度组别理论重量/kg·m-0(密度7.85g/cm3)0组2组允许偏差/mm圆钢方钢025+3.0-0.5+3.5-0.596.3023030+3.0-0.5+3.5-0.5004033035+3.0-0.5+3.5-0.5002043040+3.0-0.5+3.5-0.5020054045+3.0-2.0+4.0-2.0030065050+3.0-2.0+4.0-2.0039077060+3.0-2.0+4.0-2.0058200070+4.0-2.0+5.0-2.0078227080+4.0-2.0+5.0-2.0200254090+5.0-3.0+6.0-3.0223283200+5.0-3.0+6.0-3.0247304200+5.0-3.0+6.0-3.0272346220+5.0-3.0+6.0-3.0298380230+6.0-3.0+7.0-3.0326405240+6.0-3.0+7.0-3.0355452250+7.0-3.0+8.0-3.0385490

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