Title:
HIGH-STRENGTH SPRING STEEL
Document Type and Number:
Japanese Patent JP3971602
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide spring steel which can be industrially manufactured, and gives a spring after being quenched and tempered, necessary strength and a coiling property.
SOLUTION: The high-strength spring steel includes, by mass%, 0.75-1.2% C, 0.9-3.0% Si, 0.1-2.0% Mn, 0.015% or less P, 0.015% or less S, 0.5-1.5% Cr, 0.001-0.015% N, 0.05-1.0% W, and the balance iron with unavoidable impurities.
Inventors:
Masayuki Hashimura
Takanari Miyaki
Hiroshi Hagiwara
Takanari Miyaki
Hiroshi Hagiwara
Application Number:
JP2001364875A
Publication Date:
September 05, 2007
Filing Date:
November 29, 2001
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C22C38/00; C22C38/38; (IPC1-7): C22C38/00; C22C38/38
Domestic Patent References:
| JP3851095B2 | ||||
| JP11315348A | ||||
| JP10251804A | ||||
| JP63128152A | ||||
| JP2000063989A | ||||
| JP63227748A |
Attorney, Agent or Firm:
Hisataka Tanaka
Shunta Naito
Shunta Naito
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