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Spiral welded pipe (SSAW/SAWH): a low carbon carbon structural steel or low alloy structural steel strip is rolled into a tube blank at a certain spiral angle (forming angle), and then the tube seam i...

According to the American Petroleum Institute standard APISPEC5CT 1988 first edition, casing steel grades are H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P- There are 10 types of 110 and Q-125. Th...

ASTM A53 is a carbon steel alloy, which can be used as structural steel or for low-pressure pipelines.  ASTM A53 (ASME SA53) carbon steel pipe is a specification that covers seamless and welded black...

ERW pipe standard are as follows:           API 5L, ASTM A53 B, ASTM A178, ASTM A252, ASTM A500/501, ASTM A691, ASTM A672           API 5L Standard aims to gas and water in oil and gas industry ...

High-frequency straight seam resistance welded steel pipe, abbreviated as ERW, is a hot-rolled coil that is formed by a forming machine, and uses the skin effect and proximity effect of high-frequency...

1. What is a boiler tube? Boiler tube refers to a steel with open ends and a hollow section, and its length is larger than that of the periphery. According to the production method, it can be pided in...