Surface hardenable stainless steels

US10351922B2 · kind B2 · utility

Assignee

• QUESTEK INNOVATIONS LLC

Inventors

• David R. Snyder · Stow, US
• Jiadong Gong · Evanston, US
• Jason T. Sebastian · Chicago, US
• James A. Wright · Los Gatos, US
• Herng-Jeng Jou · Wilmette, US
• Zechariah D. Feinberg · San Francisco, US

Key dates

• Filing date: Apr 21, 2015
• Grant date: Jul 16, 2019
• Expiry date: Jun 30, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C21D2211/008
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Alloys, a process for preparing the alloys, and manufactured articles including the alloys are described herein. The alloys include, by weight, about 11.5% to about 14.5% chromium, about 0.01% to about 3.0% nickel, about 0.1% to about 1.0% copper, about 0.1% to about 0.2% carbon, about 0.01% to about 0.1% niobium, 0% to about 5% cobalt, 0% to about 3.0% molybdenum, and 0% to about 0.5% titanium, the balance essentially iron and incidental elements and impurities.