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)(一)钢板的厚度允许偏差mm公称厚度在下列宽度时的厚度允许偏差(钢板和钢带 )600 750750 10001000 1500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0.35 0.500.050.070.050.07-0.50 0.600.060.080.060.08-0.60 0.750.070.090.070.09-0.75 0.900.080.100.080.10-0.90 1.100.090.110.090.12-1.10 1.200.100.120.110.130.110.151.20 1.300.110.130.120.140.120.151.30 1.400.110.140.120.150.120.181.40 1.600.120.150.130.150.130.181.60 1.800.130.150.140.170.140.181.80 2.000.140.160.150.170.160.182.00 2.200.150.170.160.180.170.192.20 2.500.160.180.170.190.180.20精品资料2.50 3.000.170.190.180.200.190.213.00 3.500.180.200.190.210.200.223.50 4.000.210.230.220.260.240.284.00 5.50-0.2-0.2-0.15-0.1-0.3-0.25.50 7.50-0.3-0.3-0.4-0.4-0.4-0.357.50 10.00-0.6-0.6-0.6-0.6-0.5-0.510.00 13.00-0.6-0.6-0.6-0.6-0.5-0.5钢板的厚度允许偏差( 二)mm公称厚度( 钢板和钢负下列宽度的厚度允许正偏差偏100012001500 1700 1800 20002300250026002800 3000320034003600带)差1200150017001800200023002500260028003000320034003600380013 250.820.20.30.40.60.80.811.11.2-25 300.90.220.30.040.60.80.911.11.2-30 3410.20.30.30.40.60.80.911.21.3-34 401.10.30.40.50.60.70.911.11.31.4-40 501.20.40.50.60.70.811.11.21.41.5-50 601.30.60.70.80.911.11.11.11.31.5-60 801.8-11111.1121.31.31.31.31.41.480 1002-1.21.21.21.21.31.31.31.41.41.41.41.4100 150 2.2-1.31.31.31.41.51.51.61.61.61.61.61.6150 200 2.6-1.51.51.51.61.71.71.71.81.81.81.81.8钢板的厚度允许偏差(三)mm在下列宽度时的厚度允许偏差公称厚度 (钢板和钢带 )1500较高2000普通2000较高2300普通2300较高2700普通2700较高3000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. 0.500.50 0.600.60 0.750.75 0.900.90 1.101.10 1.201.20 1.301.30 1.401.40 1.601.60 1.801.802.000.170.202.002.200.180.202.202.500.190.212.503.000.200.220.230.253.003.500.220.240.260.293.504.000.260.280.300.334.005.50+0.20+0.40 -0.50+0.25+0.45 -0.50-0.40-0.405.507.50+0.20+0.40 -0.60+0.25+0.45 -0.60-0.50-0.607.5010.00+0.20 -0.70+0.35 -0.80+0.25+0.45 -0.80+0.60 -0.80-0.70+0.3510.0013.00+0.30 -0.70+0.40 -0.80+0.50 -0.80+0.70 -0.80+1.00 -0.80-0.70切边钢板的宽度允许偏差公称厚度宽度宽度允许偏差mm800+64800+1015004 161500+10+1516 60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600 1000m+5mm1000m+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+20mm1000m+30mm纵剪钢带的宽度允许偏差mm允许偏差公称厚度厚度4.04.0 6.06.0 8.08.01600.50.81.01.2160 2500.51.01.21.4250 6001.01.01.21.4钢板的长度允许偏差mm公称厚度钢板长度长度允许偏差1500+1041500+152000+104 162000 6000+256000+302000+1516 602000 6000+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厚度允许偏差公称宽度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1500a 级精度1500 2000b1500级精度1500 20000.20 0.500.040.050.50 0.650.050.060.65 0.900.060.070.90 1.100.070.090.090.111.10 1.200.090.100.100.121.20 1.40.100.120.110.141.4 1.50.110.130.120.151.5 1.80.120.140.140.161.8 2.00.130.150.150.172.0 2.50.140.170.160.182.5 3.00.160.190.180.203.0 3.50.180.200.200.213.5 4.00.190.210.220.244.0 5.00.200.220.230.25公称厚度125125 250250 400400 0.40 1.0+0.5+0.8+1.2+1.51.0 1.8+0.7+1.0+1.5+2.01.8 3.0+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宽度公称厚度负偏 600 750 10001200150017001800200023002500260028003000320034003600差750100012001500170018002000230025002600280030003200340036003800正偏差6 7.50.250.450.550.600.600.750.750.750.807.5 100.250.750.750.850.850.900.900.901.001.151.151.1510 130.250.750.750.850.850.950.951.051.251.251.251.251.5513 250.250.750.750.850.951.151.351.351.551.551.7525 300.250.850.850.951.051.251.451.551.651.751.8530 340.250.951.051.051.151.351.551.651.751.952.0534 400.251.151.251.351.451.551.751.851.952.152.2540 500.251.351.451.551.651.751.952.052.152.352.4550 600.251.651.751.851.952.052.152.152.252.352.5560 800.252.552.552.552.552.652.752.852.852.852.852.952.9580 1000.252.952.952.952.953.053.053.053.153.153.153.153.15100 150 0.253.253.253.253.253.453.453.553.553.553.553.553.55计算重量的厚度附加值mm宽度公称厚度600 750 10001200150017001800200023002500260028003000320034003600750100012001500170018002000230025002600280030003200340036003800正偏差6 7.50.100.150.180.180.250.250.250.287.5 100.250.250.300.300.330.330.330.380.450.450.4510 130.250.250.300.300.350.350.350.400.500.500.500.6513 250.250.250.300.350.450.550.550.650.700.7525 300.300.300.350.400.500.600.650.700.750.8030 340.350.400.400.450.550.650.700.750.850.9034 400.450.500.550.600.650.750.800.850.951.0040 500.550.600.650.700.750.850.900.951.051.1050 600.700.750.800.850.900.950.951.001.051.1560 801.151.151.151.151.201.251.301.301.301.301.351.3580 1001.351.351.351.351.401.401.401.451.451.451.451.45100 1501.501.501.501.551.601.601.651.651.651.651.651.65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宽度公称厚度负偏 600 750 10001200150017001800200023002500260028003000320034003600差750100012001500170018002000230025002600280030003200340036003800正偏差6 7.50.250.450.550.600.600.750.750.750.807.5 100.250.750.750.850.850.900.900.901.001.151.151.1510 130.250.750.750.850.850.950.950.951.051.251.251.251.5513 250.250.750.750.850.951.151.351.351.551.651.7525 300.250.850.850.951.051.251.451.551.651.751.8530 340.250.951.051.051.151.351.551.651.751.952.0534 400.251.151.251.351.451.551.751.851.952.152.2540 500.251.351.451.551.651.751.952.052.152.352.4550 600.251.651.751.851.952.052.152.152.252.352.5560 800.252.552.552.552.552.652.752.852.852.852.852.952.9580 1000.252.952.952.952.953.053.053.053.153.153.153.153.15100 120 0.253.253.253.253.253.453.453.553.553.553.553.553.55计算重量的厚度附加值mm宽度公称厚度600 750 10001200150017001800200023002500260028003000320034003600750100012001500170018002000230025002600280030003200340036003800正偏差6 7.50.100.150.180.180.250.250.250.287.5 100.250.250.300.300.320.320.320.380.450.450.4510 130.250.250.300.300.350.350.350.400.500.500.500.6513 250.250.250.300.350.450.550.550.650.700.7525 300.300.300.350.400.500.600.650.700.750.8030 340.350.400.400.450.550.650.700.750.850.9034 400.450.500.550.600.650.750.800.850.951.0040 500.550.600.650.700.750.850.900.951.051.1050 600.700.750.800.850.900.950.951.001.051.1560 801.151.151.151.151.201.251.301.301.301.301.351.3580 1001.351.351.351.351.401.401.401.451.451.451.451.45100 1201.501.501.501.601.601.651.651.651.651.651.651.65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5.5 70.200.300.407 200.250.350.4020 300.300.400.5030 500.400.500.6050 800.600.700.8080 1100.901.001.1110 1501.201.31.4150 1902.0190 2502.5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 d142.02.00.5