HEAT RESISTANT CAST STEEL, HEAT RESISTANT MEMBER MADE OF CAST STEEL, AND PRODUCTION METHOD THEREFOR

Japanese Patent JP2004269979

A

To provide heat resistant cast steel which can be subjected to dissolution and casting in the air, and exhibits excellent heat resistance.

The heat resistant cast steel has a composition comprising, by mass, 0.5 to 1.5% C, 0.01 to 2% Si, 3 to 20% Mn, 0.03 to 0.2% P, 3 to 20% Ni, 10 to 25% Cr, 0.5 to 4% Nb, ≤0.1% Al and 1.5 to 6% of one or two kinds of metals selected from Mo and W by 1.5 to 6% in total, and the balance mainly Fe. The heat resistant cast steel is obtained by dispersing carbides being a reinforcing phase into an austenite base matrix phase, and by increasing the amount of the carbides to be dispersed by the presence of P, it exhibits excellent high temperature properties though being austenitic heat resistant cast steel.

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KAWAURA HIROYUKI
NISHINO KAZUAKI
HIBINO YOSHIHIRO
ICHIKAWA MASAAKI
NOMURA KAZUE

JP2003063577A

September 30, 2004

March 10, 2003

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TOYOTA CENTRAL RES & DEV
TOYOTA MOTOR CORP
AICHI STEEL WORKS LTD

C21D6/00; C22C38/00; C22C38/58; C22C38/60; (IPC1-7): C22C38/00; C21D6/00; C22C38/58; C22C38/60

Hiroshi Okawa

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