Title:
CASTING MEMBER OF TWO-PHASE STAINLESS STEEL AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3155431
Kind Code:
B2
Abstract:
PURPOSE: To produce a casting member of austenite-ferrite two-phase stainless steel, having superior mechanical properties required for castings and also having excellent corrosion resistance and stress corrosion cracking resistance.
CONSTITUTION: This casting member of two-phase stainless steel has a composition which consists of, by weight, ≤0.08% C, ≤0.9% Si, ≤0.9% Mn, 5.0-8.0% Ni, 24.0-30.0% Cr, 1.0-2.5% Mo, 2.6-3.5% Cu, 0.15-0.25% N, and the balance essentially Fe or further contains ≤0.005% B and in which the amount of Al contained as impurity is limited to ≤0.05% and also has a structure composed of two-phase structure of austenite and ferrite. A molten alloy with this composition is poured into a heated precision casting mold, by which the cast member having a two-phase structure of austenite and ferrite can be produced.
Inventors:
Kurumi, Junji
Application Number:
JP28585394A
Publication Date:
April 09, 2001
Filing Date:
October 26, 1994
Export Citation:
Assignee:
YASUKI SEISAKUSHO:KK
International Classes:
B22C9/04; C22C38/00; C22C38/22; C22C38/44; C22C38/54; (IPC1-7): C22C38/00; B22C9/04; C22C38/44