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

Production Standard, Grade, Steel No:
API  5L    PSL1  L175/A25, L210/A, L245/B, L290/X42, L320/X46, L360/X52, L485/X70
               PSL2  L245R/BR, L290N/X42N, L320N/X46N, L360N/X52N, L415/X60N
API  5CT  PSL1, PSL2, PSL3,     H40, J55, K55, N80
GB/T 9711.1   L175, L210, L245, L290, L320, L360
GB/T 9711.2   L245NB, L290NB, L360NB
GB/T 9711.3   L245NC, L290NC, L360NC

Delivery Condition:Annealed, Normalized, Normalized and Tempered

Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness), Drift Test, Surface and Dimension Test,NDE, Hydrostatic Test, MT

Surface Treatment:Oil-dip, Shot Blasting, Varnish