Aluminium - killed steels

Details Aluminium - killed steels Aluminium - killed steels

C - Chemistry, Metallurgy

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C

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C22C 38/06 (2006.01) C22C 38/14 (2006.01) C22C 38/28 (2006.01) C22C 38/50 (2006.01)

Patent

CA 1282982

ABSTRACT OF THE DISCLOSURE The invention relates to a continuously cast steel which contains 0.32 to 1.0 % carbon, 0.20 to 3.0 % manganese, up to 2.0 % silicon, max. 0.05 % phosphorus, max. 0.05 % sulphur, 0.002 to 0.008 % nitrogen, 0.010 to 0.10 % aluminium, 0.010 to 0.08 % zirconium conventional adventitious impurities, remainder wherein the zirconium/nitrogen ratio is from about 7:1 to 10:1, and the austenite grain size corresponds to a grain number of ASTM 6, or a smaller grain number. These alloys in addition to being suitable for continuous casting also exhibit useful heat treating and hardenability properties.

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