8163无缝钢管承压能力和壁厚对照表（一）20#无缝碳钢管壁厚
材 质PNMPaDN10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600 20≤1.6 2.5 3 3 3 3 3.5 3.5 4 4 4 4 4.5 5 6 7 7 8 8 8 9 2.52.5 3 3 3 2 3.5 3.5 4 4 4 4 4.5 5 6 7 7 8 8 9 10 4.02.5 3 3 3 3 3.5 3.5 4 4 4.5 5 5.5 7 8 9 10 11 12 13 15 6.43 3 3 3.5 3.5 3.5 4 4.5 5 6 7 8 9 11 12 14 16 17 19 22 10.03 3.5 3.5 4 4.5 4.5 5 6 7 8 9 10 13 15 18 20 22 16.04 4.5 5 5 6 6 7 8 9 11 13 15 19 24 26 30 34 20.04 4.5 5 6 6 7 8 9 11 13 15 18 22 28 32 36
4.0T 3.5 4 4 4.5 5 5 5.5 10≤1.6 2.5 3 3 3 3 3.5 3.5 4 4.5 4 4 4.5 5.5 7 7 8 8 8 8 9
2.52.5 3 3 3 3 3.5 3.5 4 4.5 4 5 4.5 5.5 7 7 8 9 9 10 12 4.02.5 3 3 3 3 3.5 3.5 4 4.5 5 5.5 6 8 9 10 11 12 14 15 18 6.43 3 3 3.5 4 4 4.5 5 5.5 7 8 9 11 13 14 16 18 20 22 26 10.03 3.5 4 4 4.5 5 5.5 7 8 9 10 12 15 18 22 24 26 16.04 4.5 5 5 6 7 8 9 10 12 15 18 22 28 32 36 40 20.04 4.5 5 6 7 8 9 11 12 15 18 22 26 34 38 4.0T 3.5 4 4 4.5 5 5 5.5 16Mn16Mn≤1.62.5 2.5 2.5 3 3 3 3 3.5 3.5 3.5 3.5 4 4.5 5 5.5 6 6 6 6 7 2.5 2.5 2.5 2.5 3 3 3 3 3.5 3.5 3.5 3.5 4 4.5 5 5.5 6 7 7 8 9 4.0 2.5 2.5 2.5 3 3 3 3 3.5 3.5 4 4.5 5 6 7 8 8 9 10 11 12 6.4 2.5 3 3 3 3.5 3.5 3.5 4 4.5 5 6 7 8 9 11 12 13 14 16 18 10.0 3 3 3.5 3.5 4 4 4.5 5 6 7 8 9 11 13 15 17 19 16.0 3.5 3.5 4 4.5 5 5 6 7 8 9 11 12 16 19 22 25 28 20.0 3.5 4 4.5 5 5.5 6 7 8 9 11 13 15 19 24 26 30 直缝钢管壁厚对照表材料PNMPaDN200 250 300 350 400 450 500 600 700 800 900 1000 1100 1200 1400 160 0 焊接碳钢管0.2 5 5 5 5 5 5 5 6 6 6 6 6 6 7 7 7
