Recent Quality Achievements on Steel Plate for Line Pipe

Abstract

From the viewpoint of a plate manufacturer the status of steel plate quality for line pipe applications is discussed. Technologies of the steel shop and the plate mill to create high class material are presented, as well as alloying and accelerated/intermediate cooling concepts. The levels of consistency that can be reached are illustrated on recent contracts. This includes sour gas resistant line pipe steels, applications for low temperatures and the extension of these features towards high strength grades.