High strength, high fracture toughness structural alloy
US5087415A · kind A · utility
23Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Feb 6, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/52
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A high strength, high fracture toughness structural steel alloy consisting essentially of, in weight percent, about ______________________________________ C 0.2-0.33 Cr 2-4 Ni 10.5-15 Mo 0.75-1.75 Co 8-17 Fe Balance ______________________________________ and an article made therefrom are disclosed. The alloy is an age-hardenable martensitic steel alloy whcih provides a unique combination of tensile strength and fracture toughness. The alloy provides excellent mechanical properties when hardened by vacuum heat treatment with inert gas cooling and has a low ductile-to-brittle transition temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.