Steel for induction quenching and machinery structural parts using the same
US6203630A · kind A · utility
2Cited by
4References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 13, 2000 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Jul 13, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/54
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A steel product contains, by mass %, C: 0.45 to 0.60%, Si: 0.01 to 0.15%, Mn: 0.20 to 0.60%, S: 0.012% or lower, Al: 0.015 to 0.040%, Ti: 0.005 to 0.050%, B: 0.0005 to 0.0050%, N: 0.010% or lower, O: 0.0010% or lower, and balance being Fe and unavoidable impurities. Limitations are provided to allowable maximum sizes per each sort of contained non-metallic inclusions and the number per unit area thereof. This steel may contains one kind or two kinds or more of Cr: 1.00% or lower, Mo: 0.50% or lower and Ni: 1.50 or lower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.