A fire grate in a refuse incinerator

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PROBLEM TO BE SOLVED : To provide a heat resistant cast steel whose high temperature wear resistance, corrosion resistance and oxidation resistance can be improved compared with those of the conventional heat resistant alloy steel. ?SOLUTION : The heat resistant cast steel comprises, by mass, 0.7 to 1.3% C, 1.0 to 2.5% Si, 20 to 30% Cr, 0.1 to 5.0% W and 0.01 to 0.7% rare earth elements, and the balance Fe. ?COPYRIGHT : (C)2008, JPO&INPIT ?