HIGH-STRENGTH STEEL SHEET HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE AND MAXIMUM TENSILE STRENGTH OF 900 MPa OR MORE, AND PROCESS FOR PRODUCTION THEREOF

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专利权人:

Nippon Steel & Sumitomo Metal Corporation

发明人:

AZUMA, Masafumi,SUZUKI, Noriyuki,MARUYAMA, Naoki,MURASATO, Akinobu,SAKUMA, Yasuharu,KAWATA, Hiroyuki,WAKABAYASHI, Chisato

申请号：

EP20100833432

公开号：

EP2508640(A4)

申请日:

2010.11.30

申请国别(地区):

欧洲专利局

年份:

2017

代理人:

摘要：

High strength steel plate with an ultimate tensile strength of 900 MPa or more which is excellent in hydrogen embrittlement resistance characterized in that, in the structure of the steel plate, (a)by volume fraction, ferrite is present in 10 to 50%, bainitic ferrite and/or bainite in 10 to 60%, and tempered martensite in 10 to 50%, and (b) iron-based carbides which contain Si or Si and Al in 0.1% or more are present in 4×10 8 (particles/mm 3 ) or more.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/