1、钢管公称直径、外径、壁厚和理论重量表依据给水排水制图标准（GB/T50106-2001）第2.4节管径中有关规定：1、水煤气输送钢管（镀锌和非镀锌）、铸铁管等管材，管径标注为DN（mm）；2、无缝钢管、焊接钢管（直缝或螺旋缝）、铜管、不锈钢管等管材，管径标注为外径Dx壁厚；3、钢筋混凝土（或混凝土）管、陶土管、耐酸陶瓷管等管材，管径标注为d；4、塑料管材，管径宜按产品标准的方法标注；当设计用DN标注管径时，应有DN与相应产品规格对照表。塑料管管径按产品标准的方法标注一般以外径表示，如UPUC管标注为de，HDPE管标注为De。1. 总则1.0.1 本标准规定了石油化工企业用DN10-DN200
2、0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 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
3、 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.。
4、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）
5、 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
6、 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。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
7、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)421.61.622.82.753.02.933.53.375.04.6340481.61.862.83.1
8、73.03.384.04.415.05.3850601.62.342.84.013.54.954.05.615.57.50(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)1402.89.623.511.965.016.906.521.729.531.031501682.811.583.514.415.020.407.028.2111.043.232002192.815.154.02
9、1.536.534.578.042.2513.067.032502733.523.614.026.936.543.369.562.6615.096.873003254.032.134.536.106.551.829.575.0217.0131.063503774.037.345.046.564004264.547.485.052.69 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。13 表4.0.2 碳素钢、合金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sch20sch30sch40sch60
10、sch80sch100sch120sch140sch160xxsDNmmmmkg/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)423.53.335.04.566.55.6910.07.8940484.04.345.05.307.07.0810.09.3750603.54.884.05.525.06
11、.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)1405.016.656.521.408.026.049.530.5713.040.7116.048.9319.056.691501685.522.
12、046.525.897.027.799.537.1311.042.5914.053.1718.066.5822.079.212002196.534.067.036.608.041.6310.051.5413.066.0415.075.4618.089.2220.098.1524.0115.4123.0111.172502736.542.728.052.289.561.7313.083.3515.095.4318.0113.1922.0136.1725.0152.8928.0169.1725.0152.893003256.551.058.566.3410.077.6814.0107.3717.0
13、129.1222.0164.3825.0184.9528.0205.0734.0244.0026.0191.713503778.072.809.586.1011.099.2815.0133.9019.0167.7424.0208.9228.0240.9832.0272.2536.0302.734004268.082.469.597.5713.0132.4017.0171.4622.0219.1826.0256.4632.0310.9136.0346.2340.0380.754504808.093.1211.0127.2214.0160.8819.0216.0024.0269.8830.0332
14、.9135.0384.0840.0436.0245.0482.725005309.5121.9413.0165.7415.0190.5020.0251.5326.0323.1432.0392.9838.0461.0445.0538.2050.0591.845505599.5128.7313.0175.0417.0227.2222.0291.3328.0366.6435.0452.2642.0535.4848.0604.8654.0672.486006309.5145.3614.0212.5718.0271.6525.0372.9832.0471.8938.0554.7545.0649.1752
15、.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/m80894.365.416.467.498.519.5210.5112.4614.3616.221001145.616.988.339.6811.0112.3313.6416.2218.7521.2323.65(125)1408.6010.2911.9613.6215.2616.9020.1223
16、.3026.4329.5132.5415016810.3612.3914.4116.4218.4220.4024.3328.2132.0435.8239.5543.2320021913.5516.2218.8821.5324.1626.7831.9937.1442.2547.3152.3157.2762.1825027323.6126.9330.2433.5440.1046.6153.0659.4765.8372.1478.3930032532.1435.1040.0547.9155.7263.4871.1978.8486.4594.0135037755.7264.8373.8982.9091
17、.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)66098.22114.41130.56146.65162.69178.69194.64700720
18、107.22124.93142.57160.17177.72195.20212.65(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)965191.63215.35239.03262.66286.2410001020202.64227.75252.81277.81302.77注:带括号者不推荐使用表4.0.4 碳素钢、
19、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/m15016816.1820.1023.9727.7931.5635.2938.9620021921.2126.3931.5236.6041.6346.6151.5425027326.5333.0439.5145.9252.2858.5964.8671.0777.2483.3530032539.4647.2054.8962.5470.1377.6885.1892.62100.02107.373503774
20、5.8854.9063.8772.8081.6790.5199.28108.02116.69125.3240042651.9162.1472.3382.4692.55102.59112.58122.52132.40142.24152.0345048070.1481.6593.12104.54115.90127.23138.49149.72160.88172.0050053077.5490.29102.99115.64128.24140.79153.29165.75178.14190.50202.80(550)55981.8295.29108.70122.07135.38148.65161.87
21、175.04188.16201.22214.2560063092.33107.54122.71137.82152.89167.91182.88197.80212.67227.49242.26(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.
22、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)965188.80212.17235.50258.78282.01305.10328.32351.41374.4410001020199.65224.38249.07273.70298.30322.
23、82347.31371.75396.14(1100)1118273.23300.28327.29354.24381.14408.00434.8112001220298.39327.95357.47386.94416.36445.73475.05533.54(1300)1321323.29355.35387.36419.32451.23483.09514.90578.38续上表公称外径公称壁厚mmLGSTDXS直径4.05.06.07.08.09.010.011.012.013.014.015.016.018.0DNmm理论质量 kg/m14001420347.71383.21416.66451
24、.06485.41519.71553.96622.32(1500)1524373.35410.42447.43484.40521.31558.18595.00668.4816001620397.03436.46475.84515.17554.46593.69632.87711.10(1700)1727423.41465.48507.50549.47591.40633.27675.09758.5918001820446.35490.71535.02579.29623.50667.67711.79799.87(1900)1930473.47520.55567.57614.55661.48708.3
25、6755.19848.7020002020495.67544.96594.21643.40692.55741.65790.70888.6522002220544.99599.21653.39707.52761.60815.63869.61977.42注: 螺旋缝钢管分别为323.9和529。 黑线范围内规格为SY/T5037-92(普通流体输送管道用螺旋缝埋弧焊钢管)中生产的规格。 “LG”、“STD”和“XS”与SH3409-96钢板制对焊管件中的壁厚等级相对应，分别表示“薄”、“标准”和“加厚”。 带括号者不推荐使用。表4.0.5 小外径系列碳素钢、合金钢无缝钢管的尺寸和理论质量公称外径壁
26、厚及理论质量直径sch5ssch10ssch20sch20ssch30sch40sch40ssch60sch80sch100sch120sch140sch160mmmmmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/mmmkg/m15181.60.662.00.802.50.973.01.013.01.134.01.385.01.6020251.60.942.01.152.51.413.02.633.01.654.02.075.52.6425321.61.222.82.053.02.183.52.46
27、3.52.504.53.056.54.09(32)381.61.462.82.473.02.633.52.983.53.025.04.076.55.0540451.61.742.82.953.03.164.04.044.04.105.04.937.06.5650571.62.222.83.803.54.623.54.694.05.234.05.315.06.415.56.997.08.638.510.17(65)762.03.703.05.484.57.933.56.355.08.705.08.896.010.367.011.918.013.429.515.5880892.04.363.06.
28、464.59.384.08.515.511.335.511.506.513.227.515.079.017.7611.0021.161001082.05.313.07.895.012.704.010.416.015.096.015.327.017.438.520.8611.026.3114.032.48(125)1332.89.123.511.345.015.785.016.026.520.286.520.588.024.669.528.9313.038.4716.046.161501592.810.953.513.625.520.825.019.276.524.447.026.247.026
29、.639.535.0211.040.1514.050.0618.062.592002192.815.154.021.536.534.066.534.577.036.608.041.638.042.2510.051.5413.066.0415.075.4618.089.2220.098.1524.0115.412502733.523.614.026.936.542.726.543.368.052.289.561.739.562.6613.083.3515.095.4318.0113.1922.0136.1725.0152.8928.0169.173003254.032.144.536.106.5
30、51.056.551.828.566.3410.077.689.575.0214.0107.3717.0129.1222.0164.3825.0184.9528.0205.0734.0244.003503778.072.809.586.1011.099.2811.0100.7915.0133.9019.0167.7424.0208.9228.0240.9832.0272.2536.0302.734004268.082.479.597.5713.0132.4013.0134.3917.0171.4622.0219.1826.0256.4632.0310.936.0346.2340.0380.75
31、4504808.093.1211.0127.2214.0160.8815.0174.5819.0216.0024.0269.8830.0332.9135.0384.0840.0436.0245.0482.725005309.5121.9413.0165.7415.0190.5020.0251.5326.0323.1432.0392.9838.0461.0445.0538.2050.0591.84注 有括号者不推荐选用 表号中有s者仅为奥氏体不锈钢钢管。表4.0.6.1 低压流体输送用镀锌钢管的尺寸和理论质量(GB/T3091-93)公称直径外径普通钢管加厚钢管mminmm壁厚mm理论质量kg/
32、m壁厚mm理论质量kg/m61/810.02.000.412.500.4981/413.52.250.652.750.76103/817.02.250.872.751.01151/221.32.751.323.251.51203/426.82.751.703.502.0925133.53.252.514.003.00321 1/442.33.253.254.003.90401 1/248.03.503.984.254.7250260.03.505.064.506.33652 1/275.53.756.874.508.1080388.54.008.614.7510.071004114.04.0011.205.0013.791255140.04.0013.805.5018.661506165.04.50118.315.5022.13表4.0.6.2 低压流体输送用焊接钢管的尺寸和理论质量(GB/T3092-93)公称直径外径普通钢管加厚钢管mminmm壁厚mm理论质量kg/m壁厚mm理论质量kg/m61/810.02.000.392.500.468
