What is the material of L415 line pipe
L415 line pipe is a special pipe for transporting oil and natural gas, it is a kind of alloy pipe, which is made according to standard GB/T9711.
Line pipe material: alloy pipe
Line pipe use: used for gas, water, oil transport in the oil, natural gas industry.
L415 line pipe chemical composition requirements:
PSL-1 grade:
L415 steel grade: C≤0.28%, Mn≤1.40%, P≤0.030%, S≤0.030%, Nb+V+Ti≤0.15%, Cu≤0.50%, Ni≤0.50%, Cr≤0.50%, Mo≤0.15%.
PSL-2 grade:
Line pipe L415N steel grade: C ≤ 0.24%, Si ≤ 0.45%, Mn ≤ 1.40%, P ≤ 0.025%, S ≤ 0.015%, Nb ≤ 0.05%, V ≤ 0.10%, Ti ≤ 0.04%
Line pipe L415Q steel grade: C ≤ 0.18%, Si ≤ 0.45%, Mn ≤ 1.70%, P ≤ 0.025%, S ≤ 0.015%, Nb + V + Ti ≤ 0.15%.
Line pipe L415M grade: C≤0.12%, Si≤0.45%, Mn≤1.60%, P≤0.025%, S≤0.015%, Nb+V+Ti≤0.15%.
L415 material tensile test requirements:
PSL-1 grade: yield strength ≥415MPa, tensile strength ≥520MPa
PSL-2 grade: yield strength: 415MPa ~ 600MPa, tensile strength: 520MPa ~ 760MPa, yield strength ratio ≤ 0.93
