[1]谌铁强,宋 欣,张国栋,等.低碳贝氏体型厚壁X70管线钢低温韧性研究[J].焊管,2014,37(12):10-15.[doi:１００１－３９３８（２０１4）12-0010-06]
　CHEN Tieqiang,SONG Xin,ZHANG Guodong,et al.Study on Low Temperature Toughness of Low Carbon Bainitic X70 Pipeline Steel with Heavy Wall Thickness[J].,2014,37(12):10-15.[doi:１００１－３９３８（２０１4）12-0010-06]
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低碳贝氏体型厚壁X70管线钢低温韧性研究
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
37
期数:
2014年第12期
页码:
10-15
栏目:
试验与研究
出版日期:
2014-12-28

文章信息/Info

Title:
Study on Low Temperature Toughness of Low Carbon Bainitic
X70 Pipeline Steel  with Heavy Wall Thickness
文章编号:
１００１－３９３８（２０１4）12-0010-06
作者:
谌铁强; 宋 欣; 张国栋; 白学军; 李 群
（秦皇岛首秦金属材料有限公司，河北 秦皇岛 066326）
Author(s):
CHEN Tieqiang;  SONG Xin;  ZHANG Guodong;  BAI Xuejun;  LI Qun 
(Qinhuangdao Shouqin Metal Materials Co., Ltd., Qinhuangdao 066326, Hebei, China)
关键词:
X70管线钢; 低温韧性; 大壁厚; 工艺组织
Keywords:
X70 pipeline steel; low temperature toughness; thick wall thickness; process and microstructure
分类号:
TG142.74
DOI:
１００１－３９３８（２０１4）12-0010-06
文献标志码:
A
摘要:
以洁净钢冶炼控制技术、特厚板坯及优化的TMCP工艺为基础，通过对3种不同的成分体系进行对比，研究了不同成分体系对25 mm 厚X70管线钢低温韧性的影响，确定了以低C-Mo-Ni复合成分生产贝氏体型厚壁管线钢的思路。以此为指导，进行了?准1 219 mm ×30.2 mm规格 X70管线钢管工业化生产，制管后强韧性能较钢板小幅上升，焊缝及热影响区组织接近母材，具有良好的焊接性能。
Abstract:
Based on the clean steel-making technology, extremely thick slabs and optimized TMCP process, through comparison of three different chemical composition system, the effect of different composition on the low temperature toughness for 25mm X70 pipeline steel was studied, and the thought utilizing low C-Mo-Ni composite composition to produce bainitic pipeline steel with heavy wall thickness was determined. Based on this situation, the industrial production of X70 line pipe with size of ?准1 219 mm×30.2 mm was conducted. After the plates were made into pipes, the strength and toughness of pipe increase slightly, the microstructure of weld and base metal is similar to base metal, and it is with good weldability.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2014－07－11
作者简介：谌铁强（1983―），男，工程师，硕士，主要从事能源用钢的开发工作。
更新日期/Last Update: