Ce对耐热钢253MA中板夹杂物和性能的影响

特殊钢 ›› 2008, Vol. 29 ›› Issue (2): 56-57.

Ce对耐热钢253MA中板夹杂物和性能的影响

张晓珅

太原钢铁(集团)公司技术中心，太原030003

出版日期:2008-04-01 发布日期:2023-01-20
作者简介:张晓珅(1967-),女，高级工程师，1999年北京科技大学硕士研究生毕业，从事不锈钢新产品的开发工作

Effect of Ce on Inclusion and Properties in Medium Plate of Heat Resisting Steel 253MA

Zhang Xiaoshen

Technology Center,Taiyuan Iron and Steel(Group)CoLtd,Taiyuan 030003

Published:2008-04-01 Online:2023-01-20

摘要/Abstract

摘要： 太钢253MA耐热钢(%:0.05~0. 10C 、20.0~22.0Cr、10.0～12.0Ni 、0.14～0.20N 、0.03～0.08Ce) 中板由电弧炉-AOD精炼氧化期吹N2-钢包喂稀土Ce线-连铸-热轧中板流程生产。结果表明，通过喂Ce线处理，钢中稀土夹杂呈球状，分布在奥氏体晶粒内部，提高了钢的横向冲击性能和持久强度。253MA钢板1000 ℃平均氧化速率为0.09 mm/a

关键词: 耐热钢253MA Ce中板夹杂物性能

Abstract: The Medium plate of heat resisting steel253MA(0.05～0. 10C,20.0~22.0Cr,10.0～12.0Ni,0.14~ 0.20N,0.03～0.08Ce)was produced by arc funace-A0D refining oxidizing period blowing Nz-ladle feeding rare earth (RE)element Ce Wire-concasting-hot roling plate flow sheet at Taiyuan Steel. Results showed that with feeding Ce wire treatment the RE inclusions were spheroidal and dispersed at inside of austenite grain to increase transverse impact tough- ness and stress-rupture strength. The average oxidation rate of plate of steel 253MA at 1000 ℃ was 0.09 mm/a.

Key words: Heat Resisting Steel 253MA,Ce,Medium Plate,Inclusion,Properties

张晓珅. Ce对耐热钢253MA中板夹杂物和性能的影响[J]. 特殊钢, 2008, 29(2): 56-57.

Zhang Xiaoshen. Effect of Ce on Inclusion and Properties in Medium Plate of Heat Resisting Steel 253MA[J]. Special Steel, 2008, 29(2): 56-57.