钢管的公称直径外径和壁厚.docx

1、钢管的公称直径外径和壁厚1. 总则1.0.1 本标准规定了石油化工企业用DN10-DN2000的碳钢素钢、合金钢、奥氏体不锈钢无缝钢管及焊接钢管的尺寸系列。10.2 本标准适用于石油化工企业中的一般钢制管道。本标准不适用于仪表用管道。1.0.3 本标准代替钢管的公称直径、外径和壁厚（BA3-4-1-92）。2. 引用标准GB8163 输送液体用无缝钢管GB9948 石油裂化用无缝钢管GB6479 化肥设备用高压无缝钢管GB5130 高压锅炉用无缝钢管GB/T14976 流体输送用不锈钢无缝钢管GB/T3091 低压流体输送用镀锌焊接钢管GB/T3092 低压流体输送用焊接钢管GB/T14980

2、 低压流体输送用大直径电焊钢管SY/T5037 普通流体输送管道用螺旋埋弧焊钢管SH3405 石油化工企业钢管尺寸系列GB3274 普通碳素结构钢和低合金结构钢热轧厚钢板技术条件GB912 普通碳素结构钢和低合金结构钢薄钢板技术条件GB6654 压力容器用碳素钢和低合金钢厚钢板GB3531 低温压力容器用低合金厚钢板技术条件GB5681 压力容器用热轧钢带GB711 优质碳结构钢热轧厚钢板和宽钢带GB713 锅炉用碳素钢和低合金钢板GB3280 不锈钢冷轧钢板GB/T4237 不锈钢热轧钢板GB4238 耐热钢板执行本标准时，尚应符合上述相关标准的要求。3. 一般规定3.0.1 中国石油化工总

3、公司标准SH3045-96石油化工企业钢管尺寸系列已颁布代替SHJ405-89并开始实施.。考虑国内目前钢管及管道法兰组件生产和供应的实际情况。全部执行该标准尚有一定困难。本标准基本按照SH3405-96的规定，但作了若干修改，主要有； a） 公称直径DN350DN1000钢管的外径仍按我院现行规定编制，以便于与机械部法兰（JB/T81-94JB/T86-94）配套连接。 b）考虑到在老厂改造设计中仍有可能选用小外径钢管，本标准补充列入了外径钢管系列，但不推荐选用。 c） 本标准列出了中国石化总公司标准石油化工企业钢管尺寸系列（SH3405-96），当选用该系列时，DN350须选用与SH相配套

4、的的法兰、管件、紧固件和垫片系列。DN300可选用SH标准，也可选用其他相配套的标准。 d） 表4.0.1表4.0.4中DN300的钢管尺寸，亦可与国外某些标准（例如ANSI标准）配套使用。但如果管子为国外订货，则其外径和壁厚应符合国外有关标准。3.0.2 有缝钢管DN6DN150按低压流体输送用镀锌焊接钢管（GB/T3091-93)和低压流体输送用焊接钢管（GB/T3092-93）选用。DN150500按低压流体输送用大直径电焊钢管（GB/T14980-94）选用。4. 钢管尺寸系列4.0.1 奥氏体不锈钢无缝钢管尺寸和理论质量见表4.0.1。4.0.2 碳素钢、合金钢无缝钢管的尺寸和理论质

5、量见表4.0.2。4.0.3 奥氏体不锈钢焊接钢管的尺寸和理论质量见表4.0.3。4.0.4 碳素钢、合金钢焊接钢管的尺寸和理论质量见表4.0.4。4.0.5 小外径系列碳素钢、合金钢、奥氏体不锈钢无缝钢管的尺寸和理论质量见表4.0.5。4.0.6 有缝钢管的尺寸和理论质量见表4.0.6.1表4.0.6.2表4.0.6.3。4.0.7 中国石化总公司标准SH3046的钢管尺寸系列见附录A。4.0.8 钢管的每米理论质量可按下式计算： M=0.02466t（D-t） （4.0.8）式中： M钢管质量，kg/m t钢管壁厚，mm D钢管外径，mm 对于奥氏体不锈钢钢管，按上式计算后再乘以1.015

6、。精确计算时，各种奥氏体钢的密度见GB/T14976-94中的表5。表4.0.1 奥氏体不锈钢无缝钢管尺寸和理论质量公称外径壁厚及理论质量直径sch5ssch10ssch20ssch40ssch80sDNmmmmkg/mmmkg/mmmkg/mmmkg/mmmkg/m10171.20.471.60.622.00.752.50.913.21.1115221.60.822.01.002.51.223.01.434.01.8020271.61.022.01.252.51.533.01.804.02.3025341.61.302.82.193.02.333.52.674.53.32(32)421.61

7、.622.82.753.02.933.53.375.04.6340481.61.862.83.173.03.384.04.415.05.3850601.62.342.84.013.54.954.05.615.57.50(65)762.03.703.05.483.56.355.08.897.012.0980892.04.363.06.464.08.515.511.507.515.301001142.05.613.08.334.011.016.016.228.522.45(125)1402.89.623.511.965.016.906.521.729.531.031501682.811.583.5

8、14.415.020.407.028.2111.043.232002192.815.154.021.536.534.578.042.2513.067.032502733.523.614.026.936.543.369.562.6615.096.873003254.032.134.536.106.551.829.575.0217.0131.063503774.037.345.046.564004264.547.485.052.69 注: 公称壁厚超过sch80s的不锈钢钢管按表4.0.2选手; 粗实线以下的数据已超过我国现行的钢管标准的规格范围; 带括号者不推荐使用。 表4.0.2 碳素钢、合金

9、钢无缝钢管的尺寸和理论质量公称外径壁厚及理论质量直径sch20sch30sch40sch60sch80sch100sch120sch140sch160xxsDNmmmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/m10172.50.893.51.1715223.01.414.01.785.02.107.52.6820273.01.784.02.275.52.928.03.7525343.52.634.53.276.54.419.05.55(32)423.53.335.04.566.55.6910.07.8940484.04.

10、345.05.307.07.0810.09.3750603.54.884.05.525.06.785.57.397.09.158.510.7911.013.29(65)764.57.935.08.756.010.367.011.918.013.429.515.5814.021.4080894.59.385.511.336.513.227.515.079.017.7611.021.1615.027.371001145.013.446.015.987.018.478.522.1111.027.9414.034.5217.040.66(125)1405.016.656.521.408.026.049

11、.530.5713.040.7116.048.9319.056.691501685.522.046.525.897.027.799.537.1311.042.5914.053.1718.066.5822.079.212002196.534.067.036.608.041.6310.051.5413.066.0415.075.4618.089.2220.098.1524.0115.4123.0111.172502736.542.728.052.289.561.7313.083.3515.095.4318.0113.1922.0136.1725.0152.8928.0169.1725.0152.8

12、93003256.551.058.566.3410.077.6814.0107.3717.0129.1222.0164.3825.0184.9528.0205.0734.0244.0026.0191.713503778.072.809.586.1011.099.2815.0133.9019.0167.7424.0208.9228.0240.9832.0272.2536.0302.734004268.082.469.597.5713.0132.4017.0171.4622.0219.1826.0256.4632.0310.9136.0346.2340.0380.754504808.093.121

13、1.0127.2214.0160.8819.0216.0024.0269.8830.0332.9135.0384.0840.0436.0245.0482.725005309.5121.9413.0165.7415.0190.5020.0251.5326.0323.1432.0392.9838.0461.0445.0538.2050.0591.845505599.5128.7313.0175.0417.0227.2222.0291.3328.0366.6435.0452.2642.0535.4848.0604.8654.0672.486006309.5145.3614.0212.5718.027

14、1.6525.0372.9832.0471.8938.0554.7545.0649.1752.0741.1860.0843.37注:粗实践以下的数据已超过我国现行的钢管标准的规格范围;带括号者不推荐使用.表4.0.3 奥氏体不锈钢焊接钢管的尺寸和理论质量公称外径公称壁厚mm直径2.02.53.03.54.04.55.06.07.08.09.010.011.012.0DNmm理论质量 kg/m80894.365.416.467.498.519.5210.5112.4614.3616.221001145.616.988.339.6811.0112.3313.6416.2218.7521.2323.

15、65(125)1408.6010.2911.9613.6215.2616.9020.1223.3026.4329.5132.5415016810.3612.3914.4116.4218.4220.4024.3328.2132.0435.8239.5543.2320021913.5516.2218.8821.5324.1626.7831.9937.1442.2547.3152.3157.2762.1825027323.6126.9330.2433.5440.1046.6153.0659.4765.8372.1478.3930032532.1435.1040.0547.9155.7263.4871

16、.1978.8486.4594.0135037755.7264.8373.8982.9091.87100.77109.6440042663.0773.4183.7193.94104.13114.27124.3645048071.1982.8794.52106.11117.64129.14140.5750053078.7091.64104.53117.37130.16142.90155.59(550)55983.0596.72110.33123.90137.41150.88164.3060063093.71109.15124.55139.89155.18170.43185.62(650)6609

17、8.22114.41130.56146.65162.69178.69194.64700720107.22124.93142.57160.17177.72195.20212.65(750)762132.28150.98169.63188.22206.78225.27800820142.45162.59182.69202.75222.74242.69(850)864171.40192.61213.76234.85255.90900920182.62205.22227.78250.28272.73(950)965191.63215.35239.03262.66286.2410001020202.64

18、227.75252.81277.81302.77注:带括号者不推荐使用表4.0.4 碳素钢、合金钢焊接钢管的尺寸和理论质量公称外径公称壁厚mmLGSTDXS直径4.05.06.07.08.09.010.011.012.013.014.015.016.018.0DNmm理论质量 kg/m15016816.1820.1023.9727.7931.5635.2938.9620021921.2126.3931.5236.6041.6346.6151.5425027326.5333.0439.5145.9252.2858.5964.8671.0777.2483.3530032539.4647.2054.

19、8962.5470.1377.6885.1892.62100.02107.3735037745.8854.9063.8772.8081.6790.5199.28108.02116.69125.3240042651.9162.1472.3382.4692.55102.59112.58122.52132.40142.24152.0345048070.1481.6593.12104.54115.90127.23138.49149.72160.88172.0050053077.5490.29102.99115.64128.24140.79153.29165.75178.14190.50202.80(5

20、50)55981.8295.29108.70122.07135.38148.65161.87175.04188.16201.22214.2560063092.33107.54122.71137.82152.89167.91182.88197.80212.67227.49242.26(650)66096.77112.72128.63144.48160.29176.05191.76207.42223.03238.59254.10700720105.64123.08140.46157.80175.09192.32209.51226.65243.74260.78277.77(750)762130.33148.75267.12185.44203.72221.94240.11258.24276.32294.34800820140.34160.19179.99199.75219.45239.10258.71278.26297.77317.23(850)864168.87189.76210.60231.38252.12272.81293.45314.05334.59900920179.92202.19224.41246.58268.70290.77312.79334.76356.68(950)965188.80212.17235.50258.78282.01305.