鋼結(jié)構(gòu)材料尺寸允許偏差

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(chēng)厚度在下列寬度時(shí)的厚度允許偏差(鋼板和鋼帶 )600 750>750 1000>1000 1500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>0.35 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精品資料_>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鋼板的厚度允許偏差(二 )mm公稱(chēng)厚度負(fù)下列寬度的厚度允許正偏差(鋼板和鋼偏>1000>1200>1500 >1700 >1800 >2000>2300>2500>2600>2800 >3

6、000>3200>3400>3600帶 )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精品資料_>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鋼板的厚度允許偏差(三 )mm在下列寬度時(shí)的厚度允許偏差1500 2000>2000 2300>2300 27

8、00>2700 3000公稱(chēng)厚度 (鋼板較高普通較高普通較高普通較高普通和鋼帶 )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. 0.50>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精品資料_>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切邊鋼板的寬度允許偏差mm公稱(chēng)厚度寬度寬度允許偏差800+64>800+101500+10>4 16>1500+15精品資料_>16 60所有寬度+30>60所有寬度+35切邊鋼帶的寬度允許偏差不得超過(guò)下列規(guī)定鋼帶寬度600 1000m +5mm>1000m +10mm不切邊鋼帶的寬度允許偏差不得超過(guò)下列規(guī)

11、定鋼帶寬度 1000m +20mm>1000m +30mm縱剪鋼帶的寬度允許偏差mm允許偏差公稱(chēng)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鋼板的長(zhǎng)度允許偏差mm公稱(chēng)厚度鋼板長(zhǎng)度長(zhǎng)度允許偏差精品資料_1500+104>1500+152000+10>4 16>2000 6000+25

12、>6000+302000+15>16 60>2000 6000+30>6000+40>60所有長(zhǎng)度+50注:剪切后平整的熱軋鋼板,其長(zhǎng)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(chēng)寬度寬度允許偏差1000+6>1000+10不剪縱邊的鋼帶+15鋼板和鋼帶的寬度允許偏差mm厚度允許偏差公稱(chēng)寬度精品資料_A 級(jí)精度B 級(jí)精度公稱(chēng)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縱切鋼帶分寬度允許偏差mm公稱(chēng)寬度寬度允許偏差精品資料_公稱(chēng)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鋼板的長(zhǎng)度允許偏差mm公稱(chēng)長(zhǎng)度長(zhǎng)度允許偏差2000+10>2000+15鍋爐用鋼板允許偏差 (GB/T713-1997)厚度允許偏差mm寬度負(fù)偏 600 >750 >1000>1200>150

16、0>1700 >1800>2000 >2300>2500>2600>2800>3000>3200>3400>3600公稱(chēng)厚度差 750 1000 1200150017001800 20002300 25002600280030003200340036003800正偏差精品資料_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計(jì)算重量的厚度附加值mm寬度600 >750 >1000>1200>1500>1700>1

19、800>2000>2300>2500>2600>2800>3000>3200>3400>3600公稱(chēng)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精品資料_>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: 鋼板按理論重量交貨時(shí), 以鋼板的公稱(chēng)厚度加上上表的附加值作為計(jì)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寬度負(fù)偏 600 >750 >1000 >1200>1500 >1700 >18

22、00>2000 >2300>2500 >2600>2800>3000>3200>3400>3600公稱(chēng)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精品資料_>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計(jì)算重量的厚度附加值mm寬度600 >750 >1000>1200>1500>1700>1800>2000

25、>2300>2500>2600>2800>3000>3200>3400>3600公稱(chēng)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精品資料_>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熱軋圓鋼直徑和方鋼邊長(zhǎng)的允許偏差(GB/T702-1986)mm精度組別圓鋼直徑d允許偏差方鋼邊長(zhǎng)a1 組2 組3 組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、腰厚度d 允許偏差mm型號(hào)允許偏差精品資料_高度 h腿寬度 b腰厚度 d14±2.0±2.0±0.5>14 18±2.