Hot work tool steel
US4853181A · kind A · utility
5Cited by
31References
10Claims
0Family size
Inventors
Key dates
| Filing date | Jun 18, 1986 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Jun 18, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hot work tool steel has high hardness capability and improved toughness when air cooled in section sizes of 6 inches (15.24 cm) or larger. The alloy steel which is deep air hardenable, has good dimensional stability and exceptional wear resistance, in its broad scope consists essentially of about 0.35-0.6 w/o carbon, 1.0 w/o max. manganese, 2.0 w/o max. silicon, 5.7-7.0 w/o chromium, 1.65-2.2 w/o molybdenum, 0.6-1.1 w/o vanadium, and the balance is iron except for the usual impurities found in commercial grades of such alloy steels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.