公称通径DN和钢管外径φ对照表

1、l a 系 列 钢 管 的 规 格 尺 寸 和 单 位 理 论 重 量钢管钢 管 壁 厚 和 单 位 理 论 重 量规格外径SCH5sSCH10sSCH10SCH20SCH30SCH40sSCH40SCH60SCH80sSCH80SCH100SCH120SCH140SCH160DNmmmmKg/mmmKg/m mm Kg/mmmKg/mmmKg/mmmKg/mmmKg/mmmKg/mmmKg/mmmKg/mmmKg/mmmKg/mmmKg/mmmKg/m6.1/810.21.00.231.20.271.80.371.80.372.30.452.30.458.1/413.51.20.361.60

2、.471.80.522.30.642.90.762.90.7610.3/817.21.20.471.60.622.30.852.30.853.21.103.21.1015.1/221.31.60.782.00.952.91.322.91.323.61.573.61.574.51.8620.3/426.91.61.002.01.232.91.722.91.724.02.264.02.265.62.9425133.71.61.272.92.203.22.413.22.414.53.244.53.246.34.26321.1/442.41.61.612.92.823.63.443.63.445.04

3、.615.04.616.35.61401.1/248.31.61.842.93.253.63.973.63.975.05.345.05.347.17.2150260.31.62.322.94.103.24.514.05.554.05.555.67.555.67.558.811.18652.1/276.12.03.653.25.754.57.955.08.775.08.777.112.087.112.0810.016.3080388.92.04.293.26.764.59.375.611.505.611.508.015.968.015.9611.021.131004114.32.05.543.2

4、8.765.013.486.316.786.316.788.822.898.822.8910.028.0214.235.051255139.72.99.783.612.085.016.616.320.726.320.7210.031.9810.031.9812.539.2116.048.811506168.32.911.833.614.625.622.477.128.227.128.2211.042.6711.042.6714.253.9617.565.082008219.12.915.464.021.226.333.067.137.128.041.658.041.6510.051.5612.

5、563.6812.563.68 16.080.1417.587.00 20.098.2022.2 107.7925010273.03.623.924.026.536.341.438.052.288.857.338.857.3312.580.3012.580.3016.0 101.40 17.5110.2622.2 137.30 26.0137.4828.0 169.1730012323.94.031.554.535.446.349.348.868.38 10.077.4110.077.4114.2108.4512.595.9917.5 132.23 22.2165.1825.0 184.27

6、28.0204.3132.0 230.3435014355.64.034.685.043.236.3 54.278.068.57 10.085.26 10.085.2211.093.4816.0133.9912.5 105.7620.0 165.52 25.0203.8128.0 226.20 32.0255.3736.0 283.7340016406.44.039.695.049.496.3 62.168.078.60 10.097.78 10.097.7512.5121.4217.5167.8312.5 121.4222.2 210.33 28.0261.2830.0 278.45 36.

7、0328.8340.0 361.4245018457.04.044.685.055.736.3 70.028.088.58 11.0120.98 10.0110.2314.2155.0620.0215.5312.5 137.0225.0 266.33 30.0315.8936.0 373.75 40.0411.3845.0 457.2050020508.05.062.025.669.386.3 77.9410.0 122.81 12.5152.74 10.0122.8116.0194.1220.0240.6812.5 152.7428.0 331.43 32.0375.6240.0 461.6

8、4 45.0513.8250.0 564.7155022559.05.068.315.676.426.3 85.8710.0 135.38 12.5168.46 10.0135.38 25.0329.2112.5 168.4628.0 366.64 36.0464.3040.0 511.97 50.0627.6055.0 683.5860024610.05.683.476.393.796.3 93.7910.0 147.96 14.2208.63 10.0147.9617.5255.6925.0360.6512.5 184.1832.0 456.11 40.0562.2545.0 626.98

9、 55.0752.7560.0 813.78注：1、壁厚系列号（SCH）后加S者仅适用于奥氏体不锈钢钢管 2、本表可用于无缝钢管或焊接钢管 3、尽可能不选用DN32、65、125、550几种规格的钢管 4、钢管质量计算公式：W=24.6616（D-）1000 D为外径 为壁厚公公称称通通径径DN和和钢钢管管外外径径对对照照表表 本表适用的钢管外径包括A、B两个系列，A系列为国际通用系列（俗称英制管）、B系列为国内沿用系列（俗称公制管）。其公称通径DN和钢管外径按下表规定公称通径DN101520253240506580100英 制1/41/23/411 1/4 1 1/222 1/234钢管A17.221.326.933.742.448.360.376.188.9114.3外径B141825323845577689108公称通径DN125150200250300350400450500600英 制56810121416182024钢管A139.7168.3219.1273323.9355.4406.4457508610外径B133159219273325377426480530630公称通径DN700800900100012001400160018002000英 制28323640