Low alloy steels for use in pressure vessel
US4855106A · kind A · utility
7Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1987 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Sep 15, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Low alloy steels for use in pressure vessel comprising on the weight % basis: PA0 C: from 0.05% to 0.30%, PA0 Si: less than 0.10%, PA0 Mn: from 0.3% to 1.5%, PA0 Ni: from inevitably incorporated content to 0.55%, PA0 Cr: from 1.5% to 5.5%, PA0 Mo: from 0.25% to 1.5%, PA0 V: in excess of 0.10% and less than 0.6%, and PA0 the balance of iron and inevitably incorporated impurities. The steels are excellent in hardenability, the hot strength, toughness weldability and hydrogen attack and embrittlement resistance, as well as show excellent toughness after the use in the temper brittle temperature region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.