Method of manufacturing austenitic stainless steel plates
US4528046A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1984 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Jul 12, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/0205
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An austenitic stainless steel plate containing up to 0.08 wt. % of carbon, up to 1.0 wt. % of silicon, up to 2.0 wt. % of manganese, 8.0-16.0 wt. % of nickel, 16.0-20.0 wt. % of chromium, 0-30 wt. % of molybdenum, up to 0.25 wt. % of nitrogen and the balance of iron and inherent impurities, is manufactured by rolling a stainless steel blank at a temperature higher than T.sub.R (.degree.C.)=940+30(%Mo), and then cooling the rolled blank from a temperature above 800.degree. C. to a temperature below 500.degree. C. at a cooling speed higher than Rc (.degree.C./sec.) shown by the following equations: EQU log (Rc)=-0.32+14(%C+%N)-0.067(%Mo) when (%C+%N).ltoreq.1.0 wt. %; and EQU log (Rc)=1.08-0.067(%Mo) when (%C+%N)>1.0 wt. %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.