Application:
5L- Conveying gas,water,and oil in both the oil and natural industries
5CT-Tubular goods for petroleum and natural gas industries
Technical Specification & Steel grade:
API 5L     PSL1(A25, A, B, X42, X46, X52, X56, X60, X65, X70)
               PSL2(B, X42, X46, X52, X56, X60, X65, X70, X80)
API 5CT   H40, J55, K55, N80, 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,Hardenability,Sulfide stress-cacking test,Hydrostatic test,Dimensional testing,Visual inspection,Non-destructive examination(NDE)
Surface Treatment:
5L-Uncoated(bare),Temporary Coating,Special coating