Low Mn alloy steel for cryogenic service and method of preparation
US4257808A · kind A · utility
11Cited by
4References
8Claims
0Family size
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Key dates
| Filing date | Aug 13, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Aug 13, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ferritic cryogenic steel which has a relatively low (about 4-6%) manganese content and which has been made suitable for use at cryogenic temperatures by a thermal cycling treatment followed by a final tempering. The steel includes 4-6% manganese, 0.02-0.06% carbon, 0.1-0.4% molybdenum and 0-3% nickel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.