Development of Economic-Type X70 Linepipe Steel Hot Strip

被引：0

作者：

Yang, Hongmei ^{[1
]}

机构：

[1] Hebei United Univ, Tangshan, Hebei, Peoples R China

来源：

ADVANCED ENGINEERING MATERIALS III, PTS 1-3 | 2013年 / 750-752卷

关键词：

pipeline steel; acicular ferrite nnicrostructure; X70; hot strip;

D O I：

10.4028/www.scientific.net/AMR.750-752.446

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In order to reduce the production cost, economic-type X70 pipeline steels with the thickness of 14.6 and 15.9mm were redesigned. The latest alloy system of pipeline steel designed by non-molybdenum C-Mn-Cr-Nb alloy system, which replaces the high-molybdenum C-Mn-Mo-Nb alloy system, was adopted along with acicular ferrite microstructure. The microstructure of X70 strip is homogeneous and ferrite grains are fine, resulting in high strength, excellent low-temperature toughness and weldability.

引用

页码：446 / 449

页数：4