Title:
STEEL FOR SPRINGS, SPRING, AND SPRING PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2014/196308
Kind Code:
A1
Abstract:
This steel for springs comprises, in % by mass, 0.35%-0.55% C, 1.60%-3.00% Si, 0.20%-1.00% Mn, 0.10%-1.50% Cr, 0.05%-0.30% Ni, and 0.05%-1.00% Cu, and comprises substantially no V, with the remainder being Fe and unavoidable impurities. As a result of this steel for springs, spring performance can be ensured even when the amount of added Ni is reduced and V is not added.
Inventors:
KUNO TAKANORI (JP)
Application Number:
PCT/JP2014/062387
Publication Date:
December 11, 2014
Filing Date:
May 08, 2014
Export Citation:
Assignee:
CHUO HATSUJO KK (JP)
International Classes:
C22C38/00; B24C1/10; C21D7/06; C21D9/02; C22C38/42; C22C38/54; F16F1/02
Domestic Patent References:
| WO2006022009A1 | 2006-03-02 |
Foreign References:
| JP2004010965A | 2004-01-15 | |||
| JP2003253391A | 2003-09-10 | |||
| JP2012102378A | 2012-05-31 | |||
| JP2011149036A | 2011-08-04 |
Attorney, Agent or Firm:
KAI-U PATENT LAW FIRM (JP)
Patent business corporation KAI-U Patent Law Firm (JP)
Patent business corporation KAI-U Patent Law Firm (JP)
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