Patent · US Expired

Age-hardenable stainless steel having improved machinability

US4769213A · kind A · utility

9Cited by
3References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 21, 1986
Grant dateSep 6, 1988
Priority date
Expiry dateAug 21, 2006

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC22C38/42
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A chromium-nickel-copper, age-hardenable martensitic stainless steel having improved machinability in the solution-treated and also in the age-hardened condition. The steel has carbon plus nitrogen up to 0.08%, preferably 0.05 or 0.035% for purposes of improved machinability.

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