钢结构材料尺寸允许偏差

尺寸允许偏差热轧钢板和钢带尺寸允许偏差(GB/T709-1988)钢板的厚度允许偏差(一) mm 公称厚度在下列宽度时的厚度允许偏差(钢板和钢带)600750750100010001500较高轧制精度普通轧制精度较高轧制精度普通轧制精度较高轧制精度普通轧制精度0.350.500.050.070.050.07-0.500.600.060.080.060.08-0.600.750.070.090.070.09-0.750.900.080.100.080.10-0.901.100.090.110.090.12-1.101.200.100.120.110.130.110.151.201.300.110.130.120.140.120.151.301.400.110.140.120.150.120.181.401.600.120.150.130.150.130.181.601.800.130.150.140.170.140.181.802.000.140.160.150.170.160.182.002.200.150.170.160.180.170.192.202.500.160.180.170.190.180.202.503.000.170.190.180.200.190.213.003.500.180.200.190.210.200.223.504.000.210.230.220.260.240.284.005.50-0.2-0.2-0.15-0.1-0.3-0.25.507.50-0.3-0.3-0.4-0.4-0.4-0.357.5010.00-0.6-0.6-0.6-0.6-0.5-0.510.0013.00-0.6-0.6-0.6-0.6-0.5-0.5钢板的厚度允许偏差(二) mm 公称厚度(钢板和钢带)负偏差下列宽度的厚度允许正偏差100012001500170018002000230025002600280030003200340036001200150017001800200023002500260028003000320034003600380013250.820.20.30.40.60.80.811.11.2-25300.90.220.30.040.60.80.911.11.2-303410.20.30.30.40.60.80.911.21.3-34401.10.30.40.50.60.70.911.11.31.4-40501.20.40.50.60.70.811.11.21.41.5-50601.30.60.70.80.911.11.11.11.31.5-60801.8-11111.1121.31.31.31.31.41.4801002-1.21.21.21.21.31.31.31.41.41.41.41.41001502.2-1.31.31.31.41.51.51.61.61.61.61.61.61502002.6-1.51.51.51.61.71.71.71.81.81.81.81.8 钢板的厚度允许偏差(三)mm 公称厚度(钢板和钢带)在下列宽度时的厚度允许偏差15002000200023002300270027003000较高普通较高普通较高普通较高普通轧制轧制轧制轧制轧制轧制轧制轧制精度精度精度精度精度精度精度精度0.35.0.500.500.600.600.750.750.900.901.101.101.201.201.301.301.401.401.601.601.801.802.000.170.202.002.200.180.202.202.500.190.212.503.000.200.220.230.253.003.500.220.240.260.293.504.000.260.280.300.334.005.50+0.20 -0.40+0.40 -0.50+0.25 -0.40+0.45 -0.505.507.50+0.20 -0.50+0.40 -0.60+0.25 -0.60+0.45 -0.607.5010.00+0.20 -0.70+0.35 -0.80+0.25 -0.70+0.45 -0.80+0.60 -0.8010.0013.00+0.30 -0.70+0.40 -0.80+0.35 -0.70+0.50 -0.80+0.70 -0.80+1.00 -0.80 切边钢板的宽度允许偏差mm 公称厚度宽度宽度允许偏差4800+6800+104161500+101500+151660所有宽度+3060所有宽度+35 切边钢带的宽度允许偏差不得超过下列规定 钢带宽度 6001000m+5mm 1000m+10mm不切边钢带的宽度允许偏差不得超过下列规定钢带宽度 1000m+20mm 1000m+30mm纵剪钢带的宽度允许偏差mm 公称厚度允许偏差厚度4.04.06.06.08.08.01600.50.81.01.21602500.51.01.21.42506001.01.01.21.4钢板的长度允许偏差 mm 公称厚度钢板长度长度允许偏差41500+101500+154162000+1020006000+256000+3016602000+1520006000+306000+4060所有长度+50注:剪切后平整的热轧钢板,其长度偏差允许增加20mm.冷轧钢板和钢带尺寸允许偏差(GB/T708-1988)钢板和钢带的宽度允许偏差 mm 公称宽度宽度允许偏差1000+61000+10不剪纵边的钢带+15钢板和钢带的宽度允许偏差 mm 公称宽度厚度允许偏差A级精度B级精度公称厚度1500150020001500150020000.200.500.040.050.500.650.050.060.650.900.060.070.901.100.070.090.090.111.101.200.090.100.100.121.201.40.100.120.110.141.41.50.110.130.120.151.51.80.120.140.140.161.82.00.130.150.150.172.02.50.140.170.160.182.53.00.160.190.180.203.03.50.180.200.200.213.54.00.190.210.220.244.05.00.200.220.230.25纵切钢带分宽度允许偏差 mm 公称宽度宽度允许偏差公称厚度1251252502504004000.401.0+0.5+0.8+1.2+1.51.01.8+0.7+1.0+1.5+2.01.83.0+1.0+1.3+1.7+2.0钢板的长度允许偏差mm 公称长度长度允许偏差2000+102000+15锅炉用钢板允许偏差(GB/T713-1997)厚度允许偏差 mm 公称厚度负偏差宽度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.250.450.550.600.600.750.750.750.807.5100.250.750.750.850.850.900.900.901.001.151.151.1510130.250.750.750.850.850.950.951.051.251.251.251.251.5513250.250.750.750.850.951.151.351.351.551.551.7525300.250.850.850.951.051.251.451.551.651.751.8530340.250.951.051.051.151.351.551.651.751.952.0534400.251.151.251.351.451.551.751.851.952.152.2540500.251.351.451.551.651.751.952.052.152.352.4550600.251.651.751.851.952.052.152.152.252.352.5560800.252.552.552.552.552.652.752.852.852.852.852.952.95801000.252.952.952.952.953.053.053.053.153.153.153.153.151001500.253.253.253.253.253.453.453.553.553.553.553.553.55计算重量的厚度附加值 mm 公称厚度宽度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.100.150.180.180.250.250.250.287.5100.250.250.300.300.330.330.330.380.450.450.4510130.250.250.300.300.350.350.350.400.500.500.500.6513250.250.250.300.350.450.550.550.650.700.7525300.300.300.350.400.500.600.650.700.750.8030340.350.400.400.450.550.650.700.750.850.9034400.450.500.550.600.650.750.800.850.951.0040500.550.600.650.700.750.850.900.951.051.1050600.700.750.800.850.900.950.951.001.051.1560801.151.151.151.151.201.251.301.301.301.301.351.35801001.351.351.351.351.401.401.401.451.451.451.451.451001501.501.501.501.551.601.601.651.651.651.651.651.65注:钢板按理论重量交货时,以钢板的公称厚度加上上表的附加值作为计算重量的理论厚度. 压力容器用钢板允许偏差(GB6654-1996）厚度允许偏差 mm 公称厚度负偏差宽度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.250.450.550.600.600.750.750.750.807.5100.250.750.750.850.850.900.900.901.001.151.151.1510130.250.750.750.850.850.950.950.951.051.251.251.251.5513250.250.750.750.850.951.151.351.351.551.651.7525300.250.850.850.951.051.251.451.551.651.751.8530340.250.951.051.051.151.351.551.651.751.952.0534400.251.151.251.351.451.551.751.851.952.152.2540500.251.351.451.551.651.751.952.052.152.352.4550600.251.651.751.851.952.052.152.152.252.352.5560800.252.552.552.552.552.652.752.852.852.852.852.952.95801000.252.952.952.952.953.053.053.053.153.153.153.153.151001200.253.253.253.253.253.453.453.553.553.553.553.553.55计算重量的厚度附加值 mm 公称厚度宽度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.100.150.180.180.250.250.250.287.5100.250.250.300.300.320.320.320.380.450.450.4510130.250.250.300.300.350.350.350.400.500.500.500.6513250.250.250.300.350.450.550.550.650.700.7525300.300.300.350.400.500.600.650.700.750.8030340.350.400.400.450.550.650.700.750.850.9034400.450.500.550.600.650.750.800.850.951.0040500.550.600.650.700.750.850.900.951.051.1050600.700.750.800.850.900.950.951.001.051.1560801.151.151.151.151.201.251.301.301.301.301.351.35801001.351.351.351.351.401.401.401.451.451.451.451.451001201.501.501.501.601.601.651.651.651.651.651.651.65热轧圆钢直径和方钢边长的允许偏差(GB/T702-1986) mm 圆钢直径 d 方钢边长 a精度组别允许偏差1组2组3组5.570.200.300.407200.250.350.4020300.300.400.5030500.400.500.6050800.600.700.80801100.901.001.11101501.201.31.41501902.01902502.5热轧工字钢尺寸允许偏差(GB/T706-1988)工字钢的高度h、腿宽度b、腰厚度d允许偏差 mm 型号允许偏差高度h腿宽度b腰厚度d142.02.00.514182.518303.03.00.730403.50.840634.04.00.9注:工字钢平均腿厚度的允许偏差为0.06t.工字钢的弯腰挠度不应超过0.15d.工字钢腿的外缘斜度单腿不大于1.5%b,双腿不大于2.5%b.工字钢腿端外缘钝化不得使直径等于0.18t的圆棒通过.工字钢按定尺或倍尺长度交货时,其长度允许偏差 mm 定尺、倍尺长度,m允许偏差8+4008+800热轧槽钢尺寸允许偏差(GB/T707-1988)槽钢的高度h、腿宽度b、腰厚度d允许偏差 mm 型号允许偏差高度h腿宽度b腰厚度d581.51.50.48142.02.00.514182.50.618303.03.00.730403.50.8注：槽钢平均腿厚度的允许偏差为0.06t。槽钢的弯腰挠度不应超过0.15d。槽钢腿的外缘斜度，单腿不大于1.5b，双腿不大于2.5b。槽钢腿端、肩钝化不得使直径等于0.18t的圆棒通过。槽钢按定尺或倍尺长度交货时，其长度允许偏差mm 定尺、倍尺长度，m允许偏差8+4008+800热轧等边角钢尺寸允许偏差（GB/T9787-1988）等边角钢的边宽度b、边厚度d允许偏差 mm 型号允许偏差边宽度b边厚度d25.60.80.46.391.20.610141.80.716202.51.0注：等边角钢顶端直角允许偏差9035。等边角钢端边角和顶角钝化不得使直径等于0.18t的圆棒通过。等边角钢按定尺或倍尺长度交货时，其长度允许偏差：50 mm