Oxides dispersion steel and making process thereof
US6129791A · kind A · utility
9Cited by
4References
10Claims
0Family size
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Key dates
| Filing date | Sep 2, 1999 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Sep 2, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C7/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In carbon steel, oxides with grain diameter of 1 .mu.m or less and with grain spacing of 6 .mu.m or less are dispersed to suppress growth of .gamma. grains by heating at .gamma. region temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.