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Patent Searching and Data


Title:
STAINLESS STEEL SHEET FOR SPRINGS, AND PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/203695
Kind Code:
A1
Abstract:
Provided is a stainless steel sheet for springs, which has a chemical composition containing, in mass%, 0.1-0.4% of C, 2.0% or less of Si, 0.1-6.0% of Mn, 10.0-28.0% of Cr, and 0.17% or less of N, the remaining portion being Fe and impurities, which has a structure including, in vol%, 30% or less of a ferritic phase and 20% or less of a residual austenitic phase, the remaining portion being a martensitic single phase or a multi-phase structure comprising a martensitic phase, and which has an Si content of 2.0% or less at the sheet surface. The stainless steel sheet for springs has superior coating adhesion, and is suitable for use in automotive parts, home appliances, housings for office automation apparatuses, building materials for use in roofs and cladding, etc.

Inventors:
ADACHI, Kazuhiko (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
TERAOKA, Shinichi (6-1 Marunouchi 2-chome, Chiyoda-k, Tokyo 71, 〒1008071, JP)
Application Number:
JP2016/065738
Publication Date:
November 30, 2017
Filing Date:
May 27, 2016
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION (6-1 Marunouchi 2-chome, Chiyoda-ku Tokyo, 71, 〒1008071, JP)
International Classes:
C22C38/00; B21B3/02; C21D9/46; C22C38/58; C25F1/06
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (2-5-10, Sonezaki Kita-ku, Osaka-sh, Osaka 57, 〒5300057, JP)
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