Martensitic stainless steel
US4450006A · kind A · utility
5Cited by
1References
5Claims
0Family size
Inventors
Key dates
| Filing date | Oct 21, 1981 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Oct 21, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is an improved martensitic stainless steel, which essentially consisting of 0.15 to 0.50% of C, 0.01 to 0.50% of Si, 0.30 to 2.0% of Mn, 1.0 to 3.0% of Cu, up to 0.20% of Ni, 13.0 to 17.0% of Cr and 0.02 to 0.10% of N, and the balance being Fe and inevitable impurities. The stainless steel can be easily cold pressed as annealed and acquires a high strength when heat treated. Corrosion resistance of the steel is equal to or better than that of a conventional martensitic steel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.