本表格提供的是普通交货状态下(无缝钢管是热轧,直缝钢管是冷卷),钢管的承压能力的实验数据。如若对其管材进行调质等处理,其承压能力会大大大于以下对应数据。
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(一)无缝碳钢管壁厚 m m
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 | |
4.0 | 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 | |
10.0 | 3 | 3.5 | 3.5 | 4 | 4.5 | 4.5 | 5 | 6 | 7 | 8 | 9 | 10 | 13 | 15 | 18 | 20 | 22 | | | | |
16.0 | 4 | 4.5 | 5 | 5 | 6 | 6 | 7 | 8 | 9 | 11 | 13 | 15 | 19 | 24 | 26 | 30 | 34 | | | | |
20.0 | 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 | |
4.0 | 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 | |
10.0 | 3 | 3.5 | 4 | 4 | 4.5 | 5 | 5.5 | 7 | 8 | 9 | 10 | 12 | 15 | 18 | 22 | 24 | 26 | | | | |
16.0 | 4 | 4.5 | 5 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 15 | 18 | 22 | 28 | 32 | 36 | 40 | | | | |
20.0 | 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 | | | | | | | | | | | | | | |
16Mn 15MnV | ≤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 | |
4.0 | 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 | | | | | |
(二)无缝不锈钢管壁厚 mm
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 | | | |
4.0 | 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)焊接钢管壁厚 mm
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 |
1.0 | 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 | | | | |
1.0 | 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 | | | | | | |
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