钢结构材料尺寸允许偏差

1、_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 )600 750>750 1000>1000 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 0.50±0.05±0.07±0.05±0.07->0.50 0.60±0.06±0.08±0.06±0.08->0.60 0.75±0.07±0.09±0.07±0

2、.09->0.75 0.90±0.08±0.10±0.08±0.10->0.90 1.10±0.09±0.11±0.09±0.12->1.10 1.20±0.10±0.12±0.11±0.13±0.11±0.15>1.20 1.30±0.11±0.13±0.12±0.14±0.12±0.15>1.30 1.40±0.11±0.14±0.1

3、2±0.15±0.12±0.18>1.40 1.60±0.12±0.15±0.13±0.15±0.13±0.18>1.60 1.80±0.13±0.15±0.14±0.17±0.14±0.18>1.80 2.00±0.14±0.16±0.15±0.17±0.16±0.18>2.00 2.20±0.15±0.17±0.16±0

4、.18±0.17±0.19>2.20 2.50±0.16±0.18±0.17±0.19±0.18±0.20精品资料_>2.50 3.00±0.17±0.19±0.18±0.20±0.19±0.21>3.00 3.50±0.18±0.20±0.19±0.21±0.20±0.22>3.50 4.00±0.21±0.23±0.22±0.26

5、±0.24±0.28>4.00 5.50-0.2-0.2-0.15-0.1-0.3-0.2>5.50 7.50-0.3-0.3-0.4-0.4-0.4-0.35>7.50 10.00-0.6-0.6-0.6-0.6-0.5-0.5>10.00 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公称厚度负下列宽度的厚度允许正偏差(钢板和钢偏>1000>1200>1500 >1700 >1800 >2000>2300>2500>2600>2800 >3

6、000>3200>3400>3600带 )差 1200 1500 1700 1800 2000 2300 2500 2600 2800 3000 3200 3400 3600 3800>13 250.820.20.30.40.60.80.811.11.2->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

7、->50 601.30.60.70.80.911.11.11.11.31.5->60 801.8-11111.1121.31.31.31.31.41.4>80 1002-1.21.21.21.21.31.31.31.41.41.41.41.4精品资料_>100 150 2.2-1.31.31.31.41.51.51.61.61.61.61.61.6>150 200 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1500 2000>2000 2300>2300 27

8、00>2700 3000公称厚度 (钢板较高普通较高普通较高普通较高普通和钢带 )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. 0.50>0.50 0.60>0.60 0.75>0.75 0.90>0.90 1.10>1.10 1.20>1.20 1.30>1.30 1.40>1.40 1.60>1.60 1.80精品资料_>1.80 ±0.17±0.202.00>2.00 2.20±0.18±0.20>2.20 2.50±0.1

9、9±0.21>2.50 ±0.20±0.22±0.23±0.253.00>3.00 3.50±0.22±0.24±0.26±0.29>3.50 4.00±0.26±0.28±0.30±0.33+0.20+0.25>4.00 5.50+0.40 -0.50+0.45 -0.50-0.40-0.40+0.20+0.25>5.50 7.50+0.40 -0.60+0.45 -0.60-0.50-0.60+0.25>7.50 10.00+

10、0.20 -0.70+0.35 -0.80+0.45 -0.80+0.60 -0.80-0.70+0.35>10.00 13.00+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mm公称厚度宽度宽度允许偏差800+64>800+101500+10>4 16>1500+15精品资料_>16 60所有宽度+30>60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 +5mm>1000m +10mm不切边钢带的宽度允许偏差不得超过下列规

11、定钢带宽度 1000m +20mm>1000m +30mm纵剪钢带的宽度允许偏差mm允许偏差公称厚度厚度4.0>4.0 6.0>6.0 8.0>8.0160±0.5±0.8±1.0±1.2>160 250±0.5±1.0±1.2±1.4>250 600±1.0±1.0±1.2±1.4钢板的长度允许偏差mm公称厚度钢板长度长度允许偏差精品资料_1500+104>1500+152000+10>4 16>2000 6000+25

12、>6000+302000+15>16 60>2000 6000+30>6000+40>60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+6>1000+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精品资料_A 级精度B 级精度公称厚度1500>1500 20001500>1500 20000.20 0.50±0.04±0.05>0.50 0.65±0.0

13、5±0.06>0.65 0.90±0.06±0.07>0.90 1.10±0.07±0.09±0.09±0.11>1.10 1.20±0.09±0.10±0.10±0.12>1.20 1.4±0.10±0.12±0.11±0.14>1.4 1.5±0.11±0.13±0.12±0.15>1.5 1.8±0.12±0.14±0.14±

14、0.16>1.8 2.0±0.13±0.15±0.15±0.17>2.0 2.5±0.14±0.17±0.16±0.18>2.5 3.0±0.16±0.19±0.18±0.20>3.0 3.5±0.18±0.20±0.20±0.21>3.5 4.0±0.19±0.21±0.22±0.24>4.0 5.0±0.20±0.22±0.23

15、±0.25纵切钢带分宽度允许偏差mm公称宽度宽度允许偏差精品资料_公称厚度125>125 250>250 400>400 <6000.20 0.40+0.3+0.6+1.0+1.5>0.40 1.0+0.5+0.8+1.2+1.5>1.0 1.8+0.7+1.0+1.5+2.0>1.8 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+10>2000+15锅炉用钢板允许偏差 (GB/T713-1997)厚度允许偏差mm宽度负偏 600 >750 >1000>1200>150

16、0>1700 >1800>2000 >2300>2500>2600>2800>3000>3200>3400>3600公称厚度差 750 1000 1200150017001800 20002300 25002600280030003200340036003800正偏差精品资料_6 7.50.250.450.550.600.600.750.750.750.80>7.5 100.250.750.750.850.850.900.900.901.001.151.151.15>10 130.250.750.750.850.85

17、0.950.951.051.251.251.251.251.55>13 250.250.750.750.850.951.151.351.351.551.551.75>25 300.250.850.850.951.051.251.451.551.651.751.85>30 340.250.951.051.051.151.351.551.651.751.952.05>34 400.251.151.251.351.451.551.751.851.952.152.25>40 500.251.351.451.551.651.751.952.052.152.352.45>

18、;50 600.251.651.751.851.952.052.152.152.252.352.55>60 800.252.552.552.552.552.652.752.852.852.852.852.952.95>80 1000.252.952.952.952.953.053.053.053.153.153.153.153.15>100 150 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600 >750 >1000>1200>1500>1700>1

19、800>2000>2300>2500>2600>2800>3000>3200>3400>3600公称厚度750100012001500170018002000230025002600280030003200340036003800正偏差6 7.50.100.150.180.180.250.250.250.28>7.5 100.250.250.300.300.330.330.330.380.450.450.45>10 130.250.250.300.300.350.350.350.400.500.500.500.65>13

20、250.250.250.300.350.450.550.550.650.700.75精品资料_>25 300.300.300.350.400.500.600.650.700.750.80>30 340.350.400.400.450.550.650.700.750.850.90>34 400.450.500.550.600.650.750.800.850.951.00>40 500.550.600.650.700.750.850.900.951.051.10>50 600.700.750.800.850.900.950.951.001.051.15>60 8

21、01.151.151.151.151.201.251.301.301.301.301.351.35>80 1001.351.351.351.351.401.401.401.451.451.451.451.45>100 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宽度负偏 600 >750 >1000 >1200>1500 >1700 >18

22、00>2000 >2300>2500 >2600>2800>3000>3200>3400>3600公称厚度差75010001200 1500 1700 1800 2000 2300 2500 2600 2800 30003200340036003800正偏差6 7.50.250.450.550.600.600.750.750.750.80>7.5 100.250.750.750.850.850.900.900.901.001.151.151.15>10 130.250.750.750.850.850.950.950.951.05

23、1.251.251.251.55>13 250.250.750.750.850.951.151.351.351.551.651.75>25 300.250.850.850.951.051.251.451.551.651.751.85精品资料_>30 340.250.951.051.051.151.351.551.651.751.952.05>34 400.251.151.251.351.451.551.751.851.952.152.25>40 500.251.351.451.551.651.751.952.052.152.352.45>50 600.251

24、.651.751.851.952.052.152.152.252.352.55>60 800.252.552.552.552.552.652.752.852.852.852.852.952.95>80 1000.252.952.952.952.953.053.053.053.153.153.153.153.15>100 120 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600 >750 >1000>1200>1500>1700>1800>2000

25、>2300>2500>2600>2800>3000>3200>3400>3600公称厚度750 1000 12001500170018002000230025002600280030003200340036003800正偏差6 7.50.100.150.180.180.250.250.250.28>7.5 100.250.250.300.300.320.320.320.380.450.450.45>10 130.250.250.300.300.350.350.350.400.500.500.500.65>13 250.250.2

26、50.300.350.450.550.550.650.700.75>25 300.300.300.350.400.500.600.650.700.750.80>30 340.350.400.400.450.550.650.700.750.850.90>34 400.450.500.550.600.650.750.800.850.951.00>40 500.550.600.650.700.750.850.900.951.051.10>50 600.700.750.800.850.900.950.951.001.051.15精品资料_>60 801.151.15

27、1.151.151.201.251.301.301.301.301.351.35>80 1001.351.351.351.351.401.401.401.451.451.451.451.45>100 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精度组别圆钢直径d允许偏差方钢边长a1 组2 组3 组5.57±0.20±0.30±0.40>720±0.25±0.35±0.40>20 30

28、7;0.30±0.40±0.50>30 50±0.40±0.50±0.60>50 80±0.60±0.70±0.80>80 110±0.90±1.00±1.1>110 150±1.20±1.3±1.4>150 190±2.0>190 250±2.5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型号允许偏差精品资料_高度 h腿宽度 b腰厚度 d14±2.0±2.0±0.5>14 18±2.