Hot-working steel article

US6773662B2 · kind B2 · utility

Assignee

• Böhler Edelstahl GmbH & Co KG · AT

Inventors

• Kay Fisher · Leoben, AT
• Herbert Schweiger · Gänserndorf, AT

Key dates

• Filing date: Oct 2, 2002
• Grant date: Aug 10, 2004
• Expiry date: Nov 6, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21D1/18
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A hot-working steel article, e.g., tool, comprising a material which comprises, in % by weight, 0.451 to 0.598 C, 0.11 to 0.29 Si, 0.11 to 0.39 Mn, 4.2 to 4.98 Cr, 2.81 to 3.29 Mo, 0.41 to 0.69 V, with the balance iron, contaminants and accompanying elements, as well as an alloy and a process for making said article.