Steel for high-speed cold working and method for production thereof, and part formed by high-speed cold working and method for production thereof
AssigneeKabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
InventorsTomokazu MASUDA, Takuya Kochi, Shogo Murakami, Hiroshi Yaguchi
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Abstract
Disclosed herein is a steel for high-speed cold working which exhibits good cold workability during working and also exhibits high hardness after working. The steel for high-speed cold working contains C: 0.03 to 0.6% (by mass), Si: 0.005 to 0.6%, Mn: 0.05 to 2%, P: no more than 0.05% (excluding 0%), S: no more than 0.05% (excluding 0%), and N: no more than 0.04% (excluding 0%), with the remainder being iron and inevitable impurities and the amount of dissolved nitrogen in the steel being no less than 0.006%.
Claims19
A steel for high-speed cold working, comprising:
- C:
- 0.03 to 0.6% (by mass),
- Si:
- 0.005 to 0.6%,
- Mn:
- 0.05 to 2%,
- P:
- no more than 0.05% (excluding 0%),
- S:
- no more than 0.05% (excluding 0%), and
- N:
- no more than 0.04% (excluding 0%).
- with the remainder being iron and inevitable impurities and the amount of dissolved nitrogen in the steel being no less than 0.006%.
Dependencies are inferred from the claim text.