Austenitic stainless steel, manufacturing method for the same, and structure using the same
US8172959B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 13, 2005 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Dec 11, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/13
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There are provided an austenitic stainless steel having high stress corrosion crack resistance, characterized by containing, in percent by weight, 0.030% or less C, 0.1% or less Si, 2.0% or less Mn, 0.03% or less P, 0.002% or less S, 11 to 26% Ni, 17 to 30% Cr, 3% or less Mo, and 0.01% or less N, the balance substantially being Fe and unavoidable impurities; a manufacturing method for an austenitic stainless steel, characterized in that a billet consisting of the said austenitic stainless steel is subjected to solution heat treatment at a temperature of 1000 to 1150° C.; and a pipe and a in-furnace structure for a nuclear reactor to which the said austenitic stainless steel is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.