Spray-formed high-speed steel

US10233519B2 · kind B2 · utility

Assignees

• HEYE SPECIAL STEEL CO., LTD · CN
• ADVANCED TECHNOLOGY & MATERIALS CO., LTD. · US

Inventors

• Lizhi Wu · Laishui, CN
• Xiaoming Li · Laishui, CN
• Yunfeng Yang · Laishui, CN
• Chunjiang Kuang · Beijing, CN
• Dongmei Xin · Laishui, CN
• Liqing Shao · Laishui, CN
• Yucheng Fang · Laishui, CN

Key dates

• Filing date: Sep 30, 2015
• Grant date: Mar 19, 2019
• Expiry date: Apr 5, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C38/26
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A spray-formed high-speed steel includes chemical components by mass percent of: C: 0.85-1.65%, Si: 0.1-1.2%, Cr: 3.5-8.0%, W: 4.0-6.5%, Mo: 4.5-7.0%, V: 1.0-4.0%, Co: 1.0-8.0%, Mn: 0.2-0.8%, and Nb: 0.2-3.5%, with balance of iron and impurities.