API 5L X80 pipeline steel plate in China

API 5L X80 pipeline steel plate: X stands for pipeline steel in the API Spec 5L standard. 80 is the strength grade and its unit is kpsi. X80 represents pipeline steel with a minimum yield strength of 80 kpsi. Converted to metric units is approximately 552 MPa.

In China, L stands for pipeline steel. In "GB/T 9711-2011 Petroleum and Natural Gas Industry Pipeline Transportation System Steel Pipe", it is clear that my country's L555 is equivalent to API Spec 5L X80. X80 is an American classified model of high-strength pipeline steel. The minimum yield value (MPa) is 555; this concept belongs to the concept of material mechanics. The yield value refers to the stress value at the yield stage when the material is stretched, and the yield stress refers to the critical value from the yield stage to the contraction stage.

In recent years, X70 pipeline steel has been the main pipeline project in the world, API 5L X80 has also been used in pipeline construction in batches, and pipeline steel of X100 and higher steel grades is also being developed and trial-promoted.

Delivery status: API Spec 5L PSL2 X80 plates are mainly supplied in hot rolled and normalized condition.

API 5L X80 pipeline steel characteristics:

X80 pipeline steel has high strength, high toughness, good weldability, certain resistance to HIC and SSC performance, and increasing pipeline steel grade can save construction costs.