Ferritic stainless steel
US3953201A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1974 |
| Grant date | Apr 27, 1976 |
| Priority date | — |
| Expiry date | Mar 7, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ferritic stainless steel consisting essentially of, in weight percent, from 10.5 to 19.0% chromium, up to 0.03% carbon, up to 0.03% nitrogen, up to 0.20% manganese, up to 0.20% silicon, up to 0.30% nickel, up to 0.10% aluminum, up to 0.20% copper, at least one element from the group consisting of titanium and molybdenum in an amount of titanium of from 4 (%C + %N) to 0.75% and in an amount of molybdenum of from 0.50 to 2.5%, balance essentially iron. Furthermore, a steel in which the titanium and molybdenum contents are present in respective amounts of less than 0.05 and 0.20% when they are present as residuals, and one in which the chemistry is balanced in accordance with the following equation: EQU %C + %N + %Mn + %Si + %Ni + %Al + %Cu + % residual Ti + % residual Mo .ltoreq. 0.75
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.