Knowledge

Stainless steel pipe welding is a dangerous activity. This article will summarize some precautions.

Stainless steel pipe performance is decided by grade chemistry, mechanical strength and the environment it faces. This analysis compares the common austenitic and duplex grades, th

API 5L pipe is supplied in two product specification levels. PSL1 provides general quality requirements for standard service; PSL2 adds stricter chemistry, mandatory impact testing

OCTG casing includes J55, K55, N80, L80, C90, T95, P110, Q125, V150 and other steel grades.

OCTG casing is the steel pipe run into a well and cemented in place to support the borehole, seal formations and contain pressure. It is made to API 5CT in grades from H40 to Q125,

Corrosion is one of the largest causes of oil pipeline failure and of steel lost from service every year. This article sets out the corrosion mechanisms found in oil and gas pipeli

Oil well casing is a steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after compl

Choosing the right SSAW grade requires matching strength to design pressure and verifying weld quality. This article compares X42–X60 grades and explains inspection, documentation

DN 1200/1800 large diameter spiral steel pipe is a special steel pipe with larger inner and outer diameters. It is mainly used to transport large flows of liquids, such as water an

3PE-coated SSAW pipe combines epoxy adhesion with polyethylene toughness for buried energy pipelines. This article covers the three-layer architecture, the coating process adapted

ASTM A252 spiral submerged arc welded steel pipe is a steel pipe produced by spiral submerged arc welding process. It is mainly used for oil, natural gas and other fluid transporta

This article will tell the history of the development of pipeline pipes and briefly introduce pipeline pipes at the end.