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 ›› 2007, Vol. 28 ›› Issue (3): 16-18.

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Effect of W,Mo,Nb on Properties of Ultra Low Carbon Fire-Resistant Steel

Tong  Mingwei1,2,Fang  Jian1，Yuan  Zexi1   

  1. 1 Hubei Refractories and High Temperature Ceramics Key Laboratory, Wuhan University of Science and Technology,Wuhan 430081;
    2   Technical   Center,Wuhan   iron   and   Steel(Group)Corp,Wuhan   430083
  • Received:2006-11-01 Online:2007-05-01 Published:2023-01-31

W、Mo、Nb对超低碳耐火钢组织和持久性能的影响

童明伟1,2，方剑1，袁泽喜1   

  1. 1武汉科技大学材料高温陶瓷与耐火材料湖北省重点实验室，武汉430081;
    2武钢技术中心，武汉430083
  • 作者简介:童明伟(1976-),男，硕士研究生在读。1998年武汉科技大学毕业，钢铁强韧化研究。

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Abstract: The effect  of 0~0.49W,0.01~0. 13Mo,0.01~0.47Nb on fire resistant  steel  0.03C,0.99～1.01Mn, 0.005～0.028Ti for building has studied by 600 ℃ high temperature stress-rupture test and TEM. Test results showed that there  were  no-rupture  for  the  fire-resistant  steels  containing  compound  addition  0.05%~0. 13%Mo-0.47%  Nb  with  stress 230 MPa at 600 ℃ for5 h which meet the design requirement for fire-resistant steel, and the fireresistant properties of fire- resistant steel singly added Mo,W could not satisfy the design requirement.

Key words: Fire-Resistant Steel for Building,W,Mo,Nb,High Temperature Stress-Rupture Properly

摘要： 通过600℃高温持久试验和透射电镜研究了(％):0～0.49W、0.01～0.13Mo、0.01～0.47Nb对(％) 0.03C、0.99～1.01Mn、0.005～0.028Ti耐火建筑钢耐火性能的影响。试验结果表明,复合添加0.05％～0.13％Mo- 0.47％Nb的耐火钢在600℃230 MPa载荷保持5 h不发生断裂,能满足耐火钢的设计要求,单独添Mo、W的耐火钢的耐火性能不能满足设计要求。

关键词: 耐火建筑钢, W、Mo、Nb, 高温持久性能

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