ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2009, Vol. 30 ›› Issue (3): 44-45.

• 工艺技术 • 上一篇    下一篇

非调质钢48MnV的研制

谢文新1,2,王新社2 卢明霞2 曹红福2 李芸2   

  1. 1北京科技大学冶金与生态工程学院,北京100083 ;
    2江阴兴澄特种钢铁有限公司,江阴214429
  • 收稿日期:2008-11-21 出版日期:2009-06-01 发布日期:2022-11-24
  • 作者简介:谢文新(1967-),男,研究生,高级工程师,主要负责江阴兴澄特种钢铁有限公司的生产管理。

Research and Production of Non-Quenched-Tempered Steel 48MnV

Xie Wenxin1, 2, Wang Xinshe2, Lu Mingxia2, Cao Hongfu2 , Li Yun2   

  1. 1 School of Metallurgical and Ecological Engineering, University of Science and Technology, Beijing 100083 ;
    2 Jiangyin Xingcheng Special Steel Co Ltd, Jiangyin 214429
  • Received:2008-11-21 Published:2009-06-01 Online:2022-11-24

摘要: 用100 t EAF-LF(VD)-300 mm×320 mm连铸-连轧工艺生产的48MnV钢(%:0.45~0.51 C、0.90~1.20Mn、0.05~0.10V)出现粗大晶粒,经13道次轧成的125 mm×125 mm方钢(0.030%~0.050%Ti)的晶粒度为3~4级,经9道次轧成的Φ141 mm圆钢(0.030%~0.053%Ti)的晶粒度为4~5级;但通过加0.018%~0.035%Ti和0.021%~0.029%Nb后,经9道次轧制的Φ141 mm圆钢的晶粒度达5.5~6.5级,显著提高钢的强韧性。

关键词: 非调质钢48MnV, 连铸连轧, Ti-Nb, 晶粒细化

Abstract: Coarse grains occurred in the non-quenched-tempered steel 48MnV (% : 0. 45 ~0. 51C, 0. 90 ~ 1. 20Mn, 0. 05 〜0. 10 V ) produced by 100 t EAF-LF ( VD) -300 mm x 320 mm casting-continuous rolling process. As added 0. 030% 〜0. 050% Ti in steel, the rating of grain in 125 mm x 125 mm square bar rolled with 13 passes was 3 ~ 4 ; the rating of grain in Φ141 mm roun(i bar ( contained 0. 030% 〜0.053% Ti) rolled with 9 passes was 4 ~5; but as added 0. 018% ~0. 035% Ti and 0. 021 % 〜0. 029% Nb in steel, the rating of grain in Φ141 mm round bar rolled with 9 passes was 5. 5 〜6. 5 in order to obviously increase strength and toughness of steel.

Key words: Non-Quenched-Tempered Steel 48MnV, Continuous Casting and Rolling, Ti-Nb, Grain Refining