Q345B seamless steel pipe for steel structures
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Type |
Executive Standards |
Typical Steel Grades |
Product Specifications |
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Machined tubes |
EN, DIN, JIS, GB, or user protocol standards |
S355J2H, P355, E355, 20MnV6, E470, 20-45, 1E2892, S40CBM, SCr440B, SCM415, SCM440 |
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Φ 51~533X4~130 |
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Special tubes for automobiles |
ASTM or user agreement standards |
20Mn2 (A), 1045, 20MnV6, E500, E430, 5130H, SAE1030M, SAE4124, 20CrMoH SAE1527
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Φ 51~533X4~130 |
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Petroleum Special Pipe |
API, ASTM, or User Agreement Standards |
4130, 4130M, 4140, 4145, 1340, 35CrMo, 42CrMo, J55, N80, L80, P110 Q125、9-13Cr
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Φ 51~533X4~130 |
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Pipeline |
API or User Agreement Standards |
L245NS, X52NS, X70QS, X100QO |
Φ 51~533X4~130 |
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Hydraulic props, cylinder pipes |
GB or user agreement standards |
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27SiMn, 30CrMnSiA, 26MnNbTiB, FGS80WV, S690, S890, P355NL1, 20MnV6 Q345 |
Φ 51~533X4~130 |
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Fluid Pipes |
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GB or User Agreement Standards |
20, Q235, Q345 |
Φ 51~533X4~130 |
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Bearing Tube |
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SKF Specification, GB or User Agreement Standard |
52100, 100Cr6, SUJ2, GCr15, GCr15SiMn 100CrMo7、8620 |
Φ 51~533X4~130 |
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Boiler tubes |
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ASME, ASTM, GB, or user agreement standards |
SA-106B/C, T/P22, T/P91, T/P92, 12Cr2MoG, 15CrMoG, " 12Cr1MoVG |
Φ 51~533X4~130 |
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Gas cylinder tubes |
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GB or user agreement standards |
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37Mn, 4130X, 34CrMo4, 30CrMoLX |
Φ 51~533X4~130 |
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