Reinforced durable steel, method for the production thereof, method for producing parts made of steel, and parts thus obtained
US7445750B1 · kind B1 · utility
1Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2002 |
| Grant date | Nov 4, 2008 |
| Priority date | — |
| Expiry date | Jun 3, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/60
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a tool steel, the composition of which comprises (the percentages being expressed in % by weight):the balance of the composition consisting of iron and impurities resulting from the smelting, it being furthermore understood that: 2.5×10−4%2≦(Ti+½Zr)×N, to a process for manufacturing parts made in this steel and to the parts obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.