冷間鍛造性に優れ、高周波焼入れ後におけるねじり強度に優れた高周波焼入れ用鋼、およびその製造方法

Title:

冷間鍛造性に優れ、高周波焼入れ後におけるねじり強度に優れた高周波焼入れ用鋼、およびその製造方法

Document Type and Number:

Japanese Patent JP5679440

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide steel for induction hardening, excellent in cold forgeability when molded into a steel component, and capable of enhancing a torsional strength of the steel component after induction-hardened, and to provide a method of manufacturing the same.SOLUTION: The steel contains, by mass, C:0.4-0.65%, Si:0.01-0.5%, Mn:more than 0.65% and 2% or less, P:0.03% or less (not including 0%), S:0.002-0.1%, Cr:0.30-3.0%, Al:0.06-0.50%, B:0.0005-0.010%, and N:0.02% or less (not including 0%), and the remainder is iron and inevitable impurities. The steel has spheroidized structure.

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Inventors:

松ケ迫亮廣
増田智一

Application Number:

JP2011071071A

Publication Date:

March 04, 2015

Filing Date:

March 28, 2011

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Assignee:

株式会社神戸製鋼所

International Classes:

C22C38/00; C21D1/32; C21D6/00; C21D9/32; C22C38/60; F16H55/06

Attorney, Agent or Firm:

Hisakazu Ueki
Hisahiko Ueki
Tadashi Sugawa
Hiroaki Ito
Akemi Takeoka

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