HIGH-Mn AUSTENITE STAINLESS STEEL AND METAL PART FOR CLOTHING

WIPO Patent Application WO/2010/098506

A1

Provided is a high-Mn austenite stainless steel which is used as a metal part for clothing and which can be worked into a part having a complex shape and non-magnetic properties that allow for testing by a meter. The stainless steel has a component composition containing, by mass%, C: 0.02 – 0.12%, Si: 0.05 – 1.5%, Mn: 10.0 – 22.0%, S: 0.03% or less, Ni: 4.0 – 12.0%, Cr: 14.0 – 25.0%, and N: 0.07 – 0.17%, wherein the δcal is 5.5% or less as represented by the following formula: δcal (%) = (Cr+0.48Si+1.21Mo+2.2(V+Ti)+0.15Nb) – (Ni+0.47Cu+0.11Mn-0.0101Mn2+26.4C+20.1N) – 4.7; and has a magnetic permeability of 1.003 or less in a magnetic field of 200 kA/m.

HIRATA, Shigeru (LTD. Technical Research Center 4-2, Kojima-cho, Kawasaki-ku,, Kawasaki-sh, Kanagawa 61, 〒2100861, JP)
平田茂 (〒61 神奈川県川崎市川崎区小島町４番２号日本冶金工業株式会社　技術研究部内 Kanagawa, 〒2100861, JP)
IKEGAMI, Yuji (Ltd. Technical Research Center 4-2, Kojima-cho, Kawasaki-ku,, Kawasaki-sh, Kanagawa 61, 〒2100861, JP)

JP2010/053599

September 02, 2010

February 26, 2010

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NIPPON YAKIN KOGYO CO., LTD. (5-8 Kyobashi 1-chome, Chuo-ku Tokyo, 65, 〒1048365, JP)
日本冶金工業株式会社 (〒65 東京都中央区京橋１丁目５番８号 Tokyo, 〒1048365, JP)
HIRATA, Shigeru (LTD. Technical Research Center 4-2, Kojima-cho, Kawasaki-ku,, Kawasaki-sh, Kanagawa 61, 〒2100861, JP)
平田茂 (〒61 神奈川県川崎市川崎区小島町４番２号日本冶金工業株式会社　技術研究部内 Kanagawa, 〒2100861, JP)

C22C38/00; A44B1/02; A44B1/04; A44B17/00; A44B99/00; C22C38/58

OGAWA, Junzo et al. (Kobikikan Ginza Bldg, 8-9 Ginza 2-chome, Chuo-k, Tokyo 61, 〒1040061, JP)

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