Title:
SHEET METAL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2017/006843
Kind Code:
A1
Abstract:
A sheet metal having a composition comprising, in terms of % by mass, 0.002-0.10% C, 0.02-3.0% Si, 0.02-2.0% Mn, less than 0.050% P, less than 0.010% S, 12.0-30.0% Cr, more than 30.0% to less than 50.0% Ni, 0.0005-0.020% N, 0.002-5.0% Al, more than 3.0% to less than 7.5% Ti, more than 0.5% to less than 4.0% Nb, 0-4.0% Mo, 0-4.0% W, 0-0.01% B, 0-0.002% Ca, and 0-0.002% Mg, the remainder being iron and unavoidable impurities, the crystal grain size of the sheet metal being 20.0 µm or greater, the cross-sectional hardness thereof being 400 HV or greater, and the change in hardness thereof after retention for 400 hours at 700°C being 80 HV or less. This sheet metal has excellent workability and heat resistance.
Inventors:
KIMURA KEN (JP)
ICHIKAWA FUMITAKA (JP)
SAWADA MASAYOSHI (JP)
TERAOKA SHINICHI (JP)
FUKUMURA YUICHI (JP)
ICHIKAWA FUMITAKA (JP)
SAWADA MASAYOSHI (JP)
TERAOKA SHINICHI (JP)
FUKUMURA YUICHI (JP)
Application Number:
PCT/JP2016/069541
Publication Date:
January 12, 2017
Filing Date:
June 30, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C22C38/00; C21D9/46; C22C30/00; C22C38/58
Domestic Patent References:
| WO2016043199A1 | 2016-03-24 |
Foreign References:
| JPH07332035A | 1995-12-19 | |||
| JP2005002451A | 2005-01-06 | |||
| JP2000109955A | 2000-04-18 | |||
| JP2013227644A | 2013-11-07 |
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
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