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Seamless Pipeline, Seamless Line Pipe

Standard: API 5L

Application: For gas, water, transportation in Petroleum and natural gas industries

Tolerance on Dimensions

Standard

Out Diameter Wall Thickness
API 5L Tolerance Tolerance
D<60.3 +0.41mm, -0.80mm +15.0%, -12.5%
D≥60.3 +0.75%D, -0.75%D +15.0%, -12.5%

Standard

Standard Grade Chemical Components (%) Mechanical Properties
C Si Mn P S Tensile STrength(Mpa) Yield STrength(Mpa)
API 5L PSL1 A 0.22 0.90 0.030 0.030 ≥331 ≥207
B 0.28 1.20 0.030 0.030 ≥414 ≥241
X42 0.28 1.30 0.030 0.030 ≥414 ≥290
X46 0.28 1.40 0.030 0.030 ≥434 ≥317
X52 0.28 1.40 0.030 0.030 ≥455 ≥359
X56 0.28 1.40 0.030 0.030 ≥490 ≥386
X60 0.28 1.40 0.030 0.030 ≥517 ≥448
X65 0.28 1.40 0.030 0.030 ≥531 ≥448
X70 0.28 1.40 0.030 0.030 ≥565 ≥483
API 5L PSL2 B 0.24 1.20 0.025 0.015 ≥414 ≥241
X42 0.24 1.30 0.025 0.015 ≥414 ≥290
X46 0.24 1.40 0.025 0.015 ≥434 ≥317
X52 0.24 1.40 0.025 0.015 ≥455 ≥359
X56 0.24 1.40 0.025 0.015 ≥490 ≥386
X60 0.24 1.40 0.025 0.015 ≥517 ≥414
X65 0.24 1.40 0.025 0.015 ≥531 ≥448
X70 0.24 1.40 0.025 0.015 ≥565 ≥483
X80 0.24 1.40 0.025 0.015 ≥621 ≥552