API 5L Grade X42 ERW Line Pipe

API 5L X42 welded pipe: API stands for the American Petroleum Institute, with "X" denoting the first letter of "pipeline" in English, capitalized; "42" indicates a minimum yield strength of >420 MPa. X42 pipeline pipe is a pipeline pipe with a steel grade of X42, featuring plain ends, threaded ends, and socket ends. It is connected by welding, coupling, socket connection, etc. API 5L X42 welded pipe is commonly used in the construction of oil and natural gas transmission pipelines.

PSL-1 Grade:
Pipeline pipe X42/L290 steel grade: C ≤ 0.28%, Mn ≤ 1.30%, P ≤ 0.030%, S ≤ 0.030%, Nb+V+Ti ≤ 0.06%, Cu ≤ 0.50%, Ni ≤ 0.50%, Cr ≤ 0.50%, Mo ≤ 0.15%.

PSL-2 Grade:
Pipeline pipe L290N/X42N steel grade: C ≤ 0.24%, Mn ≤ 1.20%, P ≤ 0.025%, S ≤ 0.015%, Nb ≤ 0.05%, V ≤ 0.06%, Ti ≤ 0.04%, Cu ≤ 0.50%, Ni ≤ 0.30%, Cr ≤ 0.30%, Mo ≤ 0.15%, B ≤ 0.004%.

Pipeline pipe L290M/X42M grade: C ≤ 0.22%, Mn ≤ 1.30%, P ≤ 0.025%, S ≤ 0.015%, Nb ≤ 0.05%, V ≤ 0.05%, Ti ≤ 0.04%, Cu ≤ 0.50%, Ni ≤ 0.30%, Cr ≤ 0.30%, Mo ≤ 0.15%, B ≤ 0.004%.

API 5L standard X42/L290 material tensile test requirements:
PSL-1 Grade: Yield Strength ≥ 290MPa, Tensile Strength ≥ 415MPa.

PSL-2 Grade: Yield Strength 290MPa~495MPa, Tensile Strength: 415MPa~655MPa, Yield to Tensile Ratio ≤ 0.93.

API 5L X42 ERW Tube Specification

API 5L X42 ERW Steel Pipe

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