Medium carbon and medium-high carbon manganese system self-hardening bainite steel
Title：
Medium carbon and medium-high carbon manganese system self-hardening bainite steel
Application Number：
 03150091
Application Date：
 2003/08/01
Announcement Date：
 2004/02/25
Pub. Date：
Publication Number：
 1477225
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C22C 38/04
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Fang Hongsheng, Zheng Yankang, Bai Bingzhe
Key Words：
 Medium carbon, medium-high carbon, manganese system, self-hardening, bainite steel
Abstract：
 The present invention belongs to the field of low alloy steel, and relates to medium carbon and medium-high carbon manganese system air-cooled bainite steel, using C, Mn and Si as main alloy element and the air-cooling can obtain the uniform heterogeneous structure. Its composition includes C 0.35-0.60 wt%, Mn 1.80-3.00 wt%, Si 0.20-2.00 wt%, Cr 0-2.00 wt%, P 0.01-0.035 wt%, S 0.01-0.035 wt% and the rest is Fe. It can be used for making various springs, making high-toughness structure component and various wear-resistant steel balls, precision mould and large rack, etc.
Claim：
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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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