STEEL FOR MACHINE STRUCTURAL USE, EXCELLENT IN PROPERTY OF SEPARATION BY BREAKING AND ENDURANCE STRENGTH

Title:

STEEL FOR MACHINE STRUCTURAL USE, EXCELLENT IN PROPERTY OF SEPARATION BY BREAKING AND ENDURANCE STRENGTH

Document Type and Number:

Japanese Patent JPH11315340

Kind Code:

A

Abstract:

To provide an as-hot-forged formed part with excellent property of separation by breaking and endurance strength.

A composition, consisting of, by weight, 0.2-<0.35% C, 0.1-1.1% Si, 0.1-<0.3% Mn, 0.01-0.2% P, 0.01-0.2% S, >0.2-0.5% V, 0.1-0.1% Ti, 0.005-0.02% N, and the balance Fe with inevitable impurities, is provided. Further, 0.005-0.05% Al or/and one or ≥2 kinds among 0.05-0.5% Nb, 0.1-0.5% Cr, and 0.1-0.5% Mo are incorporated, if necessary.

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Inventors:

TAKADA HIROTADA
SHIBATA MASAYUKI
MORI MOTOHIDE
TANAKA ATSUO

Application Number:

JP13590698A

Publication Date:

November 16, 1999

Filing Date:

May 01, 1998

Export Citation:

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Assignee:

NIPPON STEEL CORP
TOYOTA MOTOR CORP

International Classes:

C22C38/00; C22C38/02; C22C38/12; C22C38/14; F16C7/02; C22C38/28; (IPC1-7): C22C38/00; C22C38/14; C22C38/28; F16C7/02

Attorney, Agent or Firm:

Hisashi Tanaka

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