Title:
YW35 STEEL AND LOW TEMPERATURE FISHPLATE MADE FROM IT
Document Type and Number:
WIPO Patent Application WO/2003/056051
Kind Code:
A1
Abstract:
The present invention relates to a nickel-less high manganese steel, which has high strength and high toughness in low temperature, relates to YW35 steel used for high speed railway rail, relates to low temperature fishplate made from it. The present invention YW35 steel is based on high manganese steel. While carbon content is reduced, the present invention YW35 steel is joined with equal molybdenum and little vanadium and niobium, which improves low temperature property of steel. It is characterized in that chemical composition (%) comprises C 0.32-0.40, Mn 1.10-1.30, Si 0.30-0.50, P<0.035, S<0.035, Mo 0.15-0.25, V 0.06-0.20, Nb 0.04-0.07, Cu<0.20 and the balance of Fe. The experiment proved that YW35 steel low temperature fishplate has good property in normal temperature and low temperature, applies to fishplate used for increasingly developing high speed railway rail in our country.
Inventors:
JIANG XIZHE (CN)
CHEN JINCHANG (CN)
SONG RENZHEN (CN)
CHEN JINCHANG (CN)
SONG RENZHEN (CN)
Application Number:
PCT/CN2002/000254
Publication Date:
July 10, 2003
Filing Date:
April 12, 2002
Export Citation:
Assignee:
JIANG XIZHE (CN)
CHEN JINCHANG (CN)
SONG RENZHEN (CN)
CHEN JINCHANG (CN)
SONG RENZHEN (CN)
International Classes:
C22C38/04; C22C38/12; (IPC1-7): C22C38/12; C22C38/16
Foreign References:
| CN1035682A | 1989-09-20 | |||
| JPH10176241A | 1998-06-30 |
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD (Bldg. B Tsinghua Tongfang Hi-Tech Plaza, No.
1, Wangzhuang Rd, Haidian District Beijing 3, CN)
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