管材国标、日标、英标对比(钢管)英制称呼外径5S壁厚5S内径1/83.180.701.781/46.350.894.573/89.530.897.751/212.701.2410.225/815.901.2413.423/819.101.6515.80125.401.6522.101-1/238.101.6534.80250.801.6547.502-1/263.501.6560.20376.201.6572.903-1/288.902.1184.684101.602.1197.386152.402.77146.86备注：5S、10S是壁厚等级日标称呼6810152025324050658090100125150200250300外径10.5013.8017.3021.7027.2034.0042.7048.6060.5076.3089.10101.60114.30139.80165.20216.30267.40318.505S壁厚1.001.201.201.651.651.651.651.651.652.102.102.102.102.802.802.803.404.00内径8.5011.4014.9018.4023.9030.7039.4045.3057.2072.1084.9097.40110.10134.20159.60210.70260.60310.50壁厚1.201.651.652.102.102.802.802.802.803.003.003.003.003.403.404.004.004.5010S内径8.1010.5014.0017.5023.0028.4037.1043.0054.9070.3083.1095.60108.30133.00158.40208.30259.40309.50壁厚1.502.002.002.502.503.003.003.003.503.504.004.004.005.005.006.506.506.5020S内径7.509.8013.3016.7022.2028.0036.7042.6053.5069.3081.1093.60106.30129.80155.20203.30254.40305.50壁厚1.702.202.302.802.903.403.603.703.905.205.505.706.006.607.108.209.3010.3040S内径7.109.4012.7016.1021.4027.2035.5041.2052.7065.9078.1090.20102.30126.60151.00199.90248.80297.90国标A系列称呼15202532405065809010012515020025030350400外径21.3426.6733.4042.1648.2660.3373.0388.90101.60114.30139.70168.30219.10273.00323.00355.00406.00等同称呼1/23/411-1/41-1/222-1/234--------外径18.0025.0032.0038.0045.0057.0076.0089.00-108.00133.00159.00219.00273.00325.00377.00426.005S壁厚1.601.601.601.601.601.602.002.002.002.002.902.902.903.604.004.004.00内径14.8021.8028.8034.8041.8053.8072.0085.00-104.00127.20153.20213.20265.80317.00369.00418.00B系列壁厚10S壁厚2.102.102.802.802.802.803.003.003.003.003.403.404.004.004.505.005.00内径13.8020.8026.4032.4039.4051.4070.0083.00-102.00126.20152.20211.00265.00316.00367.00416.0020S壁厚2.602.603.203.203.203.603.604.004.004.005.005.006.306.306.308.008.00内径12.8019.8025.6031.6038.6049.8068.8081.00-100.00123.00149.00206.40260.40312.40361.00410.0040S壁厚--3.203.603.604.005.005.60-6.306.307.108.008.8010.0012.0012.00