Precipitation-hardenable tool steel

Details Precipitation-hardenable tool steel Precipitation-hardenable tool steel

1991-05-16

1993-04-13

Yee, Deborah

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

148318, 148326, 148327, C22C 3806, C22C 3840

Patent

active

052020894

ABSTRACT:
The invention relates to a precipitation-hardenable tool steel intended for plastic forming tools manufactured therefrom. The tool steel at the manufacturing of the tool and prior to hardening through ageing treatment but after solution heat treatment and cooling to room temperature has a hardness less than 40 HRC, but after the manufacturing of the tool and the subsequent age hardening treatment, i.e. in the precipitation hardened condition, is harder than 45 HRC and has a high corrosion resistance and a toughness sufficient for plastic forming tools. The steel contains in weight-%:

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