TUBING AND CASING、LINE PIPES

Application:
5L – Conveying gas, water, and oil in both the oil and natural industries
5CT – Tubular goods for petroleum and natural gas industries

Production Standard and Steel Grade:
API 5L     PSL 1 (A25、A、B、X42、X46、X52、X56、X60、X65、X70)
           PSL 2(B、X42、X46、X52、X56、X60、X65、X70、X80)
API 5CT    H40、J55、K55、N80、M65、L80、C90、T95、P110、Q125

Inspection and Tests Performed:
5L – Chemical composition, Mechanical properties, Hydrostatic test, Dimensional testing, Visual inspection, Nondestructive inspection
5CT – Chemical composition, Tensile test, Flattening test, Hardness test, Impact test, Grain size determination, Harden ability, Sulfide stress-cracking test, Hydrostatic test, Dimensional testing, Visual inspection, Non-destructive examination(NDE)

Surface Treatment:
5L – Uncoated(bare), Temporary coating, Special coating