LOW ALLOY STEEL WITH A HIGH YIELD STRENGTH AND HIG

专利名称：LOW ALLOY STEEL WITH A HIGH YIELD

STRENGTH AND HIGH SULPHIDE STRESSCRACKING RESISTANCE

发明人：BOSCH, Christoph,KULGEMEYER, Axel,LEYER,

Jean,PIETTE, Michel

申请号：EP10706569.0申请日：20100212公开号：EP2403970B1公开日：20130508

摘要：A steel contains, by weight: C: 0.3% to 0.5%, Si: 0.1% to 0.5%, Mn: 0.1% to 1%, P:0.03% or less, S: 0.005% or less, Cr: 0.3% to 1.5%, Mo: 1.0% to 1.5%, Al: 0.01% to 0.1%, V:0.03% to 0.06%, Nb: 0.04% to 0.15%, Ti: 0 to 0.015%, N: 0.01% or less, the remainder ofthe chemical composition of the steel being constituted by Fe and impurities or residualsresulting from or necessary to steel production and casting processes. The steel enablesto produce seamless tubes with a yield strength after heat treatment of 862 MPa ormore which are particularly SSC-resistant.

申请人：VALLOUREC MANNESMANN OIL & GAS

地址：FR

国籍：FR

代理机构：Marsolais, Richard

更多信息请下载全文后查看