Patent · US Expired

Precipitation hardening chromium steel casting alloy

US4326885A · kind A · utility

9Cited by
4References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 16, 1980
Grant dateApr 27, 1982
Priority date
Expiry dateJun 16, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC22C38/20
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A cavitation resistant, low carbon 12% chromium steel alloy utilizing a nominal 1.5% copper addition which imparts strength by a precipitation reaction. The alloy exhibits a higher strength and hardness for a given carbon content and conversely is less susceptible to casting and welding cracks and stress corrosion cracking.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.