Title:
CAST AUSTNITIC STAINLESS STEEL
Document Type and Number:
Japanese Patent JPH08239735
Kind Code:
A
Abstract:
PURPOSE: To improve mechanical properties and corrosion resistance by specifying respective contents of Cr, Ni, Mo, Co, Cu, N, W, C, Si, and Mn in a cast stainless steel.
CONSTITUTION: This austenitic stainless steel has a composition consisting of, by weight, 20-35% Cr, 15-35% Ni, 0.1-10% Mo, 0.01-0.1% CO, 0.5-3% Cu, 0.01-0.5% N, 1-8% W, ≤0.12% C, ≤3% Si, ≤2% Mn, and the balance Fe with inevitable impurities. It is desirable to produce this steel by means of centrifugal casting. The resultant cast steel has mechanical properties of 40kgf/mm2 of 0.2% proof stress, ≥75kgf/mm2 tensile strength, and ≤60% elongation and also has excellent corrosion resistance to local corrosion, such as pitting corrosion and crevice corrosion.
Inventors:
OBARA TAKESHI
SHIRAISHI YOSHIYO
YAMAGISHI KOICHI
SHIRAISHI YOSHIYO
YAMAGISHI KOICHI
Application Number:
JP3948495A
Publication Date:
September 17, 1996
Filing Date:
February 28, 1995
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
B22D13/06; C22C33/04; C22C38/00; C22C38/52; (IPC1-7): C22C38/00; B22D13/06; C22C33/04; C22C38/52
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