Junk Mills
Line pipes
Standard: According to API Spec 5L standard.
Use: Used as oxygen, water, and oil delivery pipe in oil and natural gas industry
Steel grade:
•PSL1: A25,A,B,X42,X46,X52,X56,X60,X65,X70
•PSL2: B,X42,X46,X52,X56,X60,X65,X70,X80
Type: Seamless line pipe
Weld pipe(SAW and ERW)
Size:
Wall thickness: 2.77mm ~ 18.26mm
Seamless line pipe OD ≤13 3/8”
Weld pipe line pipe OD≥13 3/8”
Length: R1/R2/R3
Dimension Tolerance：
Steel Pipe Specification Steel Pipe Outside Diameter（D） Steel Pipe Wall Thickness（S）
Pipe Body Steel Pipe Outside Diameter (mm) Allowable deviation (mm) Steel Pipe Outside Diameter (mm) Allowable Deviation (mm)
≥60.3andS＜20 ±0.75％ ≤73.0 ＋15％，－12.5％
≥60.3andS≥20 ±1.00％ ＞73.0andS＜20 ＋15％，－12.5％
＞73.0andS≥20 ＋17.5％，－10
Mechanical Property：
Standard Model Tensile Strength（MPa） Yield Strength（MPa） Yield Strength
Ratio Tensile Stretch（％） Ballistic Work
Akv（J） Heat Treatment
State
API SPEC 5L
GB/T9711.2 B ≥415 245～440 ≤0.80 22 ≥40 normalizing
X42 ≥415 290～440 ≤0.80 21 ≥40 normalizing
X52 ≥460 360～510 ≤0.85 20 ≥40 normalizing
X60 ≥520 415～565 ≤0.85 18 ≥40 normalizing
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