ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2016, Vol. 37 ›› Issue (1): 68-70.

Special Issue: 汽车用微合金钢

Previous Articles    

Optimization and Development of 500 MPa Ti-Nb Microalloy High Strength Steel for Auto

Yin Sheng1，Zhu Hongdan2   

  1. 1 R&D Center；2 Testing Center of Manufacturing Department,
    Shanghai Meishan Iron and Steel Co Ltd, Nanjing 210039
  • Received:2015-08-03 Online:2016-02-01 Published:2022-08-25

500 MPa汽车用Ti-Nb微合金高强度结构钢的优化和开发

殷胜1， 朱红丹2   

  1. 上海梅山钢铁股份有限公司1技术中心品种开发室;
    2制造部检测中心，南京210039
  • 作者简介:殷胜(1980-),男，硕士，高级工程师,2002年南京理工大学毕业，汽车用钢开发。

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Abstract: The production flowsheet for Ti-Nb Microalloy high strength steel plate is 206 t top and bottom combined blown converter-LF-RH-230 mm slab casting-rolling 3 〜7 mm plate process. Through optimizing the original 0.45 Nh- 0. 015Ti microalloy steel to 0. 070Ti-0. 015Nb microalloy steel has excellent welding and low temperature impact toughness properties and has better comprehensive mechanical properties. Service results show that the 0. 07Ti-0. 015Nb microalloy steel is identical to 0. 045Nb-0. 015Ti microalloy steel, satisfactory to requirement of process and service, while the production cost decreases obviously.

摘要： Ti-Nb微合金高强度钢板的生产流程为206 t顶底复吹转炉-LF-RH-230 mm铸坯-连轧成3~7mm板工艺。将原0.045Nb-0.015Ti微合金化钢优化成0.070Ti-0.015Nb微合金化钢后,其焊接性能和低温冲击性能优良,并具有良好的综合力学性能。使用结果表明,0.070Ti-0.015Nb微合金化钢与0.045Nb-0.015Ti微合金钢相同,满足加工和服役要求,但成本有明显降低。

关键词: Ti-Nb微合金化, 汽车用高强度钢, 析出强化

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