Precipitation hardenable, austenitic hot work steel and a...

Details Precipitation hardenable, austenitic hot work steel and a... Precipitation hardenable, austenitic hot work steel and a...

C - Chemistry, Metallurgy

22

C

C22C 38/22 (2006.01) C21D 9/00 (2006.01) C22C 38/04 (2006.01)

Patent

CA 2059853

P0974 ABSTRACT The invention relates to a precipitation hardenable, austenitic hot work steel having a high hot yield strength, a good resistance to tempering, and a good hot ductility (toughness) at temperatures of about 700°C. The steel has the following composition, expressed in percent by weight: 0.35 - 0.60 C max. 1 Si 9 - 17 Mn 2 - 8 Cr max. 2 Ni l - 4 Mo, which fully or partly can be replaced by double the amount of W (% by weight) 1.2 - 1.8 V 0.001 - 0.020 B the remainder essentially iron and impurities and accessory elements in normal amounts.

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