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Beijing, CN
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last 30 patents
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Patent Grant
Method of producing an air-hardenable bainite-martensite steel
Patent number
5,123,970
Issue date
Jun 23, 1992
Qinghua University
Hongsheng Fang
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Air-cooling duplex bainite-martensite steels
Patent number
4,957,702
Issue date
Sep 18, 1990
Qinghua University
Hongsheng Fang
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Air-cooling low-carbon bainitic steel
Patent number
4,812,182
Issue date
Mar 14, 1989
Hongsheng Fang
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...