Steel alloy and method for heat treating steel alloy components

US11286534B2 · kind B2 · utility

Assignee

• The Boeing Company · US

Inventors

• Daniel E. Sievers · Owens Cross Roads, US
• Peter J. Bocchini · Huntsville, US

Key dates

• Filing date: Jul 16, 2019
• Grant date: Mar 29, 2022
• Expiry date: Feb 16, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C38/52
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A steel alloy including, by weight percent: Ni: 18 to 19%; Co: 11.5 to 12.5%; Mo: 4.6 to 5.2%; Ti: 1.3 to 1.6%; Al: 0.05 to 0.15%; Nb: 0.15 to 0.30%; B: 0.003 to 0.020%; Cr: max 0.25%; Mn: max 0.1%; Si: max 0.1%; C: max 0.03%; P: max 0.005%; and S: max 0.002%, the balance being iron plus incidental impurities.