Line Pipe For Sour Service

Line pipe for sour service

General information:

Tianjin Wanlei Steel Pipe developed the technology of line pipe for sour service. The billet for this pipe adopt pure, fully killed, fine grain steel. The content of sulphur, phosphor and other harmful elements is strictly controlled. Meanwhile elements Nb, V, Al and other alloy elements have been added. The pipe has not only high resistance against H2S, but also have better performance of mechanical properties, hardness, breaking toughness, fatigue resistance and crack prevention ability. The test result of SSC (NACE TM0177-2005) and HIC (NACE TM0284-2003) have reached the requirements of API 5L (44th edition) Annex H after the inspection of competent authorities. This kind of pipe can fully meet the demand of NACE MR0175 or ISO 15156.

Steel Grade:

BNS(L245NS), BQS(L245QS), X42NS(L290NS), X42QS(L290QS), X46NS(L320NS), X46QS(L320QS),

X52NS(L360NS), X52QS(L360QS), X56QS(L390QS), X60QS(L415QS)

Delivery condition: Normalizing rolled, normalizing formed, normailized, normalized and tempered, quenched and tempered.

Size range: OD NPS 2 1/2 to NPS 36, WT 4mm to 60mm, according to ASME/ANSI B36.10M

Dimension and tolerance: According to ASME/ANSI B36.10M

Length: SRL, DRL, TRL or commerical length

Certification: API 5L monograme

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