管道压力和壁厚对照表

管道压力和壁厚对照表

（一）无缝碳钢管壁厚 m m

资料 DN PN MPa 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 ≤1.6 2.5 3 2.5 2.5 3 20 12CrMo 15CrMo 12Cr1MoV 4.0 2.5 3 6.4 3 10.0 3 16.0 4 20.0 4 3 3 3 3 3 3 3 3 3 2 3 3.5 3.5 4 3.5 3.5 4 3.5 3.5 4 6 8 9 4 4 4 7 9 4 4 6 8 4 4 7 9 4.5 5 4.5 5 5.5 7 8 9 6 6 8 7 7 9 7 7 10 14 20 30 36 8 8 11 16 24 36 5.5 6 5.5 6 8 11 8 8 8 11 16 22 34 8 9 12 18 26 40 6 7 9 8 8 12 17 8 9 14 20 6 7 8 9 13 19 8 10 15 22 6 8 9 10 15 22 9 12 18 26 7 9 4.5 5 3.5 3.5 3.5 4 4.5 4.5 5 6 6 3 3 3 6 7 5 7 8 5 6 3 3 3 4 5 6 4.5 5 11 12 3.5 3.5 4 4.5 5 4.5 5 4 3 3 3 3 10 13 15 18 11 13 15 19 24 26 4 5 8 7 7 10 11 13 15 18 22 28 32 4.5 4 4.5 4 4.5 5 5.5 7 8 9 4.5 5.5 7 4.5 5.5 7 8 9 9 4.0T 3.5 4 ≤1.6 2.5 3 2.5 2.5 3 4.0 2.5 3 10 Cr5Mo 6.4 3 10.0 3 16.0 4 20.0 4 3 4.5 5 5.5 3.5 3.5 4 3.5 3.5 4 3.5 3.5 4 4 7 8 5 3 3 3 4 5 4.5 5 5.5 7 8 9 3 3 3 9 5.5 6 3.5 4 6 7 3 3 3 11 13 14 3.5 4 4.5 5 4.5 5 4 4.5 5 10 12 15 18 22 10 12 15 18 22 28 32 4.5 5 4.5 5 6 8 7 9 11 12 15 18 22 26 34 38 3.5 3.5 3.5 3.5 4 3.5 3.5 3.5 3.5 4 3.5 3.5 4 4.5 5 6 8 9 7 9 4.5 5 6 8 7 9 4.0T 3.5 4 4.5 5 5.5 ≤1.6 2.5 2.5 2.5 3 2.5 2.5 2.5 2.5 3 16Mn 15MnV 4.0 2.5 2.5 2.5 3 6.4 2.5 3 10.0 3 3 3 3 10 11 12 3.5 3.5 3.5 4 4.5 5 6 7 7 8 12 13 14 16 18 17 19 25 28 30 3.5 3.5 4 4.5 5 4.5 5 11 13 15 16.0 3.5 3.5 4 20.0 3.5 4 无缝不锈钢管壁厚 压力对照 11 12 16 19 22 5.5 6 11 13 15 19 24 26 (二)无缝不锈钢管壁厚 mm 资料 DN PN MPa 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 2 2 2.5 2.5 2.5 2.5 2.5 2.5 3 3 3 3 3 3 3 3 3.5 3.5 3.5 4 3.5 3.5 4 4.5 5 6 4 6 4.5 5 7 2.5 2.5 2.5 2.5 2.5 3 2.5 2.5 2.5 2.5 2.5 3 4.5 5 1Cr18Ni9Ti ≤1.0 2 1.6 2 含Mo不锈钢 2.5 2 3.5 3.5 4 4.0 2 4.0T 3 2.5 2.5 2.5 2.5 2.5 3 3 4 3 4 3.5 3.5 4 3 3.5 4 4.5 5 4.5 5 6 7 6 8 7 10 8 11 9 13 10 14 6.4 2.5 2.5 2.5 3 3.5 4 4.5 焊接钢管壁厚对照表 （三）焊接钢管壁厚 mm 资料 DN PN MPa 200 250 300 350 400 450 500 600 700 800 900 1000 1100 1200 1400 1600 0.25 5 焊接碳钢管 （Q235A20） 0.6 5 1.0 5 1.6 6 2.5 7 0.25 3 0.6 3 焊接不锈钢管 1.0 3.5 1.6 4 2.5 5 5 5 5 6 8 3 3 5 6 6 7 9 3 5 6 6 7 9 3 5 6 6 8 10 5 6 7 8 11 5 6 7 9 12 4 7 10 6 7 8 10 13 6 7 8 11 15 4 7 9 13 6 7 9 12 16 4 5 7 10 15 6 7 9 13 6 8 6 8 10 14 6 6 8 11 15 7 8 11 16 7 9 12 7 10 3.5 3.5 3.5 4 5.5 6 8 12 4.5 4.5 3.5 3.5 3.5 4 4.5 4.5 5 6 8 6 9 7 9 4.5 5 3.5 4 4.5 5 6 7