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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 公稱厚度在下列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0.350.500.050.070.050.07-0.500.600.060.080.060.08-0.600.750.070.090.070.09-0.750.900.080.100.080.10-0.901.100.090.110.090.12-1.101.200.100.120.110.130.110.151.201.300.110
2、.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
3、.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(fù)偏差下列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)在下列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0.35.0.500.500.600.600.750.750.900.901.101.101.201.201.301.301.401.401.601.601.801.802.000.170.202.002.20
6、0.180.202.202.500.190.212.503.000.200.220.230.253.003.500.220.240.260.293.504.000.260.280.300.334.005.50+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+0.3
7、5 -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下列規(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下列規(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.
8、21.4鋼板的長度允許偏差 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(yù)級精度B級精度公稱厚度1500150020001500150020000.200.500.040.050.500.6
9、50.050.060.650.900.060.070.901.100.070.090.090.111.101.200.090.100.100.121.201.40.100.120.110.141.41.50.110.130.120.151.51.80.120.140.140.161.82.00.130.150.150.172.02.50.140.170.160.182.53.00.160.190.180.203.03.50.180.200.200.213.54.00.190.210.220.244.05.00.200.220.230.25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
10、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(fù)偏差寬度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.25
11、0.450.550.600.600.750.750.750.807.5100.250.750.750.850.850.900.900.901.001.151.151.1510130.250.750.750.850.850.950.951.051.251.251.251.251.5513250.250.750.750.850.951.151.351.351.551.551.7525300.250.850.850.951.051.251.451.551.651.751.8530340.250.951.051.051.151.351.551.651.751.952.0534400.251.151.2
12、51.351.451.551.751.851.952.152.2540500.251.351.451.551.651.751.952.052.152.352.4550600.251.651.751.851.952.052.152.152.252.352.5560800.252.552.552.552.552.652.752.852.852.852.852.952.95801000.252.952.952.952.953.053.053.053.153.153.153.153.151001500.253.253.253.253.253.453.453.553.553.553.553.553.55
13、計算重量的厚度附加值 mm 公稱厚度寬度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034003400360036003800正偏差67.50.100.150.180.180.250.250.250.287.5100.250.250.300.300.330.330.330.380.450.450.4510130.250.250.300.300.350.350.350.400.500.500.500.6513250.250.250.3
14、00.350.450.550.550.650.700.7525300.300.300.350.400.500.600.650.700.750.8030340.350.400.400.450.550.650.700.750.850.9034400.450.500.550.600.650.750.800.850.951.0040500.550.600.650.700.750.850.900.951.051.1050600.700.750.800.850.900.950.951.001.051.1560801.151.151.151.151.201.251.301.301.301.301.351.3
15、5801001.351.351.351.351.401.401.401.451.451.451.451.451001501.501.501.501.551.601.601.651.651.651.651.651.65注: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(fù)偏差寬度60075075010001000120012001500150017001700180018002000200023002300250025002600260028002800300030003200320034
16、003400360036003800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.
17、651.751.952.0534400.251.151.251.351.451.551.751.851.952.152.2540500.251.351.451.551.651.751.952.052.152.352.4550600.251.651.751.851.952.052.152.152.252.352.5560800.252.552.552.552.552.652.752.852.852.852.852.952.95801000.252.952.952.952.953.053.053.053.153.153.153.153.151001200.253.253.253.253.253.4
18、53.453.553.553.553.553.553.55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.
19、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.
20、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、腿寬度b
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