What's the difference between API 5L PSL1 and API 5L PSL2?

　　As we all know that,API 5L steel pipe mainly use for conveying the oil, water, and natural gas industries.but less people know what is the differences between API 5L PSL1 and API 5L PSL2?Here,Tianjin Xinyue Steel will show you the differences between them.

　　PSL refers to product specification level made for API 5L standard. Pipe specification level is divided into PSL1 and PSL2 for line pipe standard, line pipes of PSL1 and PSL2 have different levels of quality requirement.

　　API 5L PSL1 production does not require for impact performance, for API 5L PSL2, all pipes requires for satisfy the following data except x80 grade, full size 0 ℃ average Akv: longitudinal p j, 41 lateral acuity 27 j. Average grade X80 steel, full size 0 ℃ Akv: longitudinal 101 j, or lateral acuity 68 j.

　　API 5L PSL2 shows higher performance than PSL1 as it has stricter inspection requirements, chemical composition and mechanical performance requirements.

　　Line pipe production should include the hydraulic pressure test, and standards are not allowed to nondestructive generation of hydraulic pressure, nondestructive inspection is not required for PSL1, while each API 5L PSL2 pipe shall go through nondestructive examination one by one.

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