Medium carbon air-cooled Mn/B bainitic steel |
Title： |
| Medium carbon air-cooled Mn/B bainitic steel |
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Application Number： |
86103008 |
Application Date： |
1986/04/30 |
Announcement Date： |
1987/06/24 |
Pub. Date： |
1987/12/30 |
Publication Number： |
1011738 |
Announcement Number： |
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Grant Date： |
1987-10-15 |
Granted Pub. Date： |
1987-12-30 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
C22C 38/04, C22C 38/12, C22C 38/38 |
Applicant(s)： |
Qinghua Univ. |
Inventor(s)： |
Fang Hongsheng, Zheng Yankang |
Key Words： |
Medium carbon, air-cooled, Mn/B, bainitic steel |
Abstract： |
It uses Mn, B as essential alloy elements. After heat-manufactured, air-cooled hardness can be over HRC 50. Bainite/martensite duplex structures of high strengt and toughness can be gained after tempering. sigma sub 0.2 kg/sq. mm, sigma sub b is not less than 130 kg/sq. mm. It avoids quenching process saves energy, and decrease cost. The invented steel products can be used for making springs, etc. with properties reaching or exceeding 60 Si2Mn steel. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
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