Stainless steel sheet with excellent heat and corrosion resistances for brake disk
US8852361B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2005 |
| Grant date | Oct 7, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2200/0021
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A stainless steel sheet with excellent heat and corrosion resistances for a brake disk is provided. Specifically, in mass %, C: less than 0.10%, Si: 1.0% or less, Mn: 1.0 to 2.5%, P: 0.04% or less, S: 0.01% or less, Cr: more than 11.5% but not more than 15.0%, Ni: 0.1 to 1.0%, Al: 0.10% or less, Nb: more than 0.08% but not more than 0.6%, V: 0.02 to 0.3%, and N: more than 0.03% but not more than 0.10% are contained so that 0.03≦{C+N−(13/93)Nb}≦0.10, (5Cr+10Si+15Mo+30Nb+50V−9Ni−5Mn−3Cu−225N−270C)≦45, and {(14/50)V+(14/90)Nb}<N (wherein Cr, Si, Mo, Nb, Ni, Mn, Cu, V, N, and C represent the contents (mass %) of the corresponding elements) are satisfied. With such a composition, the stainless steel sheet for a brake disk can be provided with both excellent heat resistance and excellent corrosion resistance after tempering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.