管道压力和壁厚对照表/钢管壁厚压力对照/焊接钢管壁厚对照表
(一)无缝碳钢管壁厚与压力对照表
材料 | PN(Mpa) | DN | |||||||||||||||||||
10 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | ||
20#,12CrMo,15CrMo,12Cr1MoV | ≤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 |
2.5 | 2.5 | 3 | 3 | 3 | 2 | 3.5 | 3.5 | 4 | 4 | 4 | 4 | 4.5 | 5 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | |
4 | 2.5 | 3 | 3 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 5 | 5.5 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 15 | |
6.4 | 3 | 3 | 3 | 3.5 | 3.5 | 3.5 | 4 | 4.5 | 5 | 6 | 7 | 8 | 9 | 11 | 12 | 14 | 16 | 17 | 19 | 22 | |
10 | 3 | 3.5 | 3.5 | 4 | 4.5 | 4.5 | 5 | 6 | 7 | 8 | 9 | 10 | 13 | 15 | 18 | 20 | 22 | ||||
16 | 4 | 4.5 | 5 | 5 | 6 | 6 | 7 | 8 | 9 | 11 | 13 | 15 | 19 | 24 | 26 | 30 | 34 | ||||
20 | 4 | 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#,Cr5Mo | ≤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 |
2.5 | 2.5 | 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 | 2.5 | 3 | 3 | 3 | 3 | 3.5 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 8 | 9 | 10 | 11 | 12 | 14 | 15 | 18 | |
6.4 | 3 | 3 | 3 | 3.5 | 4 | 4 | 4.5 | 5 | 5.5 | 7 | 8 | 9 | 11 | 13 | 14 | 16 | 18 | 20 | 22 | 26 | |
10 | 3 | 3.5 | 4 | 4 | 4.5 | 5 | 5.5 | 7 | 8 | 9 | 10 | 12 | 15 | 18 | 22 | 24 | 26 | ||||
16 | 4 | 4.5 | 5 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 15 | 18 | 22 | 28 | 32 | 36 | 40 | ||||
20 | 4 | 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 | ||||||||||||||
15MnV,16Mn | ≤1.6 | 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 | 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 | 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 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 5 | 6 | 7 | 8 | 9 | 11 | 13 | 15 | 17 | 19 | ||||
16 | 3.5 | 3.5 | 4 | 4.5 | 5 | 5 | 6 | 7 | 8 | 9 | 11 | 12 | 16 | 19 | 22 | 25 | 28 | ||||
20 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 7 | 8 | 9 | 11 | 13 | 15 | 19 | 24 | 26 | 30 |
(二)无缝不锈钢管壁厚与压力对照
材料 | PN(Mpa) | DN | |||||||||||||||||||
10 | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | ||
1Cr18Ni9Ti,含Mo不锈钢 | ≤1.0 | 2 | 2 | 2 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 3.5 | 4 | 4 | 4.5 | |||
1.6 | 2 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 | 3 | 3 | 3.5 | 3.5 | 4 | 4.5 | 5 | 5 | ||||
2.5 | 2 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 | 3.5 | 3.5 | 4 | 4.5 | 5 | 6 | 6 | 7 | ||||
4 | 2 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 | 4.5 | 5 | 6 | 7 | 8 | 9 | 10 | ||||
6.4 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3 | 3.5 | 4 | 4.5 | 5 | 6 | 7 | 8 | 10 | 11 | 13 | 14 | ||||
4.0T | 3 | 3.5 | 3.5 | 4 | 4 | 4 | 4.5 |
(三)焊接钢管(直缝焊管)壁厚与压力对照表
材料 | PN(Mpa) | DN | |||||||||||||||
200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 | 1100 | 1200 | 1400 | 1600 | ||
焊接碳钢管(Q235A20) | 0.25 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 |
0.6 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 10 | |
1 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 9 | 10 | 11 | 11 | 12 | ||
1.6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |||
2.5 | 7 | 8 | 9 | 9 | 10 | 11 | 12 | 13 | 15 | 16 | |||||||
焊接不锈钢管 | 0.25 | 3 | 3 | 3 | 3 | 3.5 | 3.5 | 3.5 | 4 | 4 | 4 | 4.5 | 4.5 | ||||
0.6 | 3 | 3 | 3.5 | 3.5 | 3.5 | 4 | 4 | 4.5 | 5 | 5 | 6 | 6 | |||||
1 | 3.5 | 3.5 | 4 | 4.5 | 4.5 | 5 | 5.5 | 6 | 7 | 7 | 8 | ||||||
1.6 | 4 | 4.5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | |||||||
2.5 | 5 | 6 | 7 | 8 | 9 | 9 | 10 | 12 | 13 | 15 |