Production standard/grade and steel numbers:
API 5L PSL1 L175/A25, L210/A, L245/B, L290/X42, L320/X46, L360/X52 and L485/X70
PSL2 L245R/BR, L290N/X42N, L320N/X46N, L360N/X52N and L415/X60N
API 5CT PSL1, PSL2, PSL3, H40, J55, K55 and N80
GB/T 9711.1 L175, L210, L245, L290, L320 and L360
GB/T 9711.2 L245NB, L290NB and L360NB
GB/T 9711.3 L245NC, L290NC and L360NC
Surface treatment: Oil-dip, shot blasting and varnish
Size: Customized
Delivery conditions: Annealed, normalized and tempered
Inspection and test:
Chemical composition inspection
Mechanical properties test (tensile strength, yield strength, elongation, flaring, flattening, bending and hardness)
Drift test
Surface and dimension test
NDE
Hydrostatic test
MT
Applications:
Conveying gas, water and oil in both oil and natural industries
Tubular goods for petroleum and natural gas industries