Hot-rolled steel sheet
US10689737B2 · kind B2 · utility
1Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2015 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Aug 17, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B2001/228
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hot-rolled steel sheet includes a chemical composition represented by, in mass %, C: 0.010% to 0.100%, Si: 0.30% or less, Cr: 0.05% to 1.00%, Nb: 0.003% to 0.050%, Ti: 0.003% to 0.200% and others, wherein a proportion of grains having an intragranular misorientation of 5° to 14° in all grains is 20% or more by area ratio, the grain being defined as an area which is surrounded by a boundary having a misorientation of 15° or more and has a circle-equivalent diameter of 0.3 μm or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.