鋼結構材料尺寸允許偏差

1、.1尺寸允許偏差熱軋鋼板和鋼帶尺寸允許偏差(GB/T709-1988)鋼板的厚度允許偏差(一) mm公稱厚度在以下寬度時的厚度允許偏差(鋼板和鋼帶)600750750100010001500較高軋制精度普通軋制精度較高軋制精度普通軋制精度較高軋制精度普通軋制精度0.350.500.050.070.050.07-0.500.600.060.080.060.08-0.600.750.070.090.070.09-0.750.900.080.100.080.10-0.901.100.090.110.090.12-1.101.200.100.120.110.130.110.151.201.300.11

2、0.130.120.140.120.151.301.400.110.140.120.150.120.181.401.600.120.150.130.150.130.181.601.800.130.150.140.170.140.181.802.000.140.160.150.170.160.182.002.200.150.170.160.180.170.192.202.500.160.180.170.190.180.202.503.000.170.190.180.200.190.213.003.500.180.200.190.210.200.223.504.000.210.230.220.26

3、0.240.284.005.50-0.2-0.2-0.15-0.1-0.3-0.25.507.50-0.3-0.3-0.4-0.4-0.4-0.357.5010.00-0.6-0.6-0.6-0.6-0.5-0.510.0013.00-0.6-0.6-0.6-0.6-0.5-0.5鋼板的厚度允許偏差(二) mm公稱厚度(鋼板和鋼帶)負偏差以下寬度的厚度允許正偏差100012001500170018002000230025002600280030003200340036001200150017001800200023002500260028003000320034003600380013250.

4、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

5、.31.41.51.51.61.61.61.61.61.61502002.6-1.51.51.51.61.71.71.71.81.81.81.81.8鋼板的厚度允許偏差(三)mm公稱厚度(鋼板和鋼帶)在以下寬度時的厚度允許偏差15002000200023002300270027003000較高普通較高普通較高普通較高普通軋制軋制軋制軋制軋制軋制軋制軋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.

6、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

7、-0.70+0.50 -0.80+0.70 -0.80+1.00 -0.80切邊鋼板的寬度允許偏差mm公稱厚度寬度寬度允許偏差4800+6800+104161500+101500+151660所有寬度+3060所有寬度+35 切邊鋼帶的寬度允許偏差不得超過以下規(guī)定 鋼帶寬度 6001000m+5mm 1000m+10mm不切邊鋼帶的寬度允許偏差不得超過以下規(guī)定鋼帶寬度 1000m+20mm 1000m+30mm縱剪鋼帶的寬度允許偏差mm公稱厚度允許偏差厚度4.04.06.06.08.08.01600.50.81.01.21602500.51.01.21.42506001.01.01.21.4鋼

8、板的長度允許偏差 mm公稱厚度鋼板長度長度允許偏差41500+101500+154162000+1020006000+256000+3016602000+1520006000+306000+4060所有長度+50注:剪切后平整的熱軋鋼板,其長度偏差允許增加20mm.冷軋鋼板和鋼帶尺寸允許偏差(GB/T708-1988)鋼板和鋼帶的寬度允許偏差 mm公稱寬度寬度允許偏差1000+61000+10不剪縱邊的鋼帶+15鋼板和鋼帶的寬度允許偏差 mm公稱寬度厚度允許偏差A級精度B級精度公稱厚度1500150020001500150020000.200.500.040.050.500.650.050.0

9、60.650.900.060.070.901.100.070.090.090.111.101.200.090.100.100.121.201.40.100.120.110.141.41.50.110.130.120.151.51.80.120.140.140.161.82.00.130.150.150.172.02.50.140.170.160.182.53.00.160.190.180.203.03.50.180.200.200.213.54.00.190.210.220.244.05.00.200.220.230.25縱切鋼帶分寬度允許偏差 mm公稱寬度寬度允許偏差公稱厚度12512525

10、02504004000.401.0+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鋼板的長度允許偏差mm公稱長度長度允許偏差2000+102000+15鍋爐用鋼板允許偏差(GB/T713-1997)厚度允許偏差 mm公稱厚度負偏差寬度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.250.450.550.6

11、00.600.750.750.750.807.5100.250.750.750.850.850.900.900.901.001.151.151.1510130.250.750.750.850.850.950.951.051.251.251.251.251.5513250.250.750.750.850.951.151.351.351.551.551.7525300.250.850.850.951.051.251.451.551.651.751.8530340.250.951.051.051.151.351.551.651.751.952.0534400.251.151.251.351.451.

12、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計算重量的厚度附加值

13、mm公稱厚度寬度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.100.150.180.180.250.250.250.287.5100.250.250.300.300.330.330.330.380.450.450.4510130.250.250.300.300.350.350.350.400.500.500.500.6513250.250.250.300.350.450.5

14、50.550.650.700.7525300.300.300.350.400.500.600.650.700.750.8030340.350.400.400.450.550.650.700.750.850.9034400.450.500.550.600.650.750.800.850.951.0040500.550.600.650.700.750.850.900.951.051.1050600.700.750.800.850.900.950.951.001.051.1560801.151.151.151.151.201.251.301.301.301.301.351.35801001.351.

15、351.351.351.401.401.401.451.451.451.451.451001501.501.501.501.551.601.601.651.651.651.651.651.65注:鋼板按理論重量交貨時,以鋼板的公稱厚度加上上表的附加值作為計算重量的理論厚度.壓力容器用鋼板允許偏差(GB6654-1996厚度允許偏差 mm公稱厚度負偏差寬度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003

16、800正偏差67.50.250.450.550.600.600.750.750.750.807.5100.250.750.750.850.850.900.900.901.001.151.151.1510130.250.750.750.850.850.950.950.951.051.251.251.251.5513250.250.750.750.850.951.151.351.351.551.651.7525300.250.850.850.951.051.251.451.551.651.751.8530340.250.951.051.051.151.351.551.651.751.952.053

17、4400.251.151.251.351.451.551.751.851.952.152.2540500.251.351.451.551.651.751.952.052.152.352.4550600.251.651.751.851.952.052.152.152.252.352.5560800.252.552.552.552.552.652.752.852.852.852.852.952.95801000.252.952.952.952.953.053.053.053.153.153.153.153.151001200.253.253.253.253.253.453.453.553.553.

18、553.553.553.55計算重量的厚度附加值 mm公稱厚度寬度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.100.150.180.180.250.250.250.287.5100.250.250.300.300.320.320.320.380.450.450.4510130.250.250.300.300.350.350.350.400.500.500.500.6513

19、250.250.250.300.350.450.550.550.650.700.7525300.300.300.350.400.500.600.650.700.750.8030340.350.400.400.450.550.650.700.750.850.9034400.450.500.550.600.650.750.800.850.951.0040500.550.600.650.700.750.850.900.951.051.1050600.700.750.800.850.900.950.951.001.051.1560801.151.151.151.151.201.251.301.301.

20、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熱軋圓鋼直徑和方鋼邊長的允許偏差(GB/T702-1986) mm圓鋼直徑 d 方鋼邊長 a精度組別允許偏差1組2組3組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熱軋工字鋼尺寸允許偏差(GB/T706-1988)工字鋼的高度h