Heat resisting steel and a method for preparing a gas turbine wheel

The present invention discloses a heat resisting steel and a method for preparing a gas turbine wheel, the weight percentage content of each component of the heat-resistant steel materials are as follows: C0.05-0.12%, Cr10.0-11.0%, Mo0.50-1.00%, Mn0.30-1.30%, Ni0.20-1.20%, Co5.00-7.00%, V0.10-0.40%, Nb0.20-0.50%, B0.005-0.015%, Si0 .10-0.80%, the balance being Fe and unavoidable impurities, the steel material by selecting a suitable ratio of the components manufactured from heat-resistant steel, to meet the mechanical property requirements, can be adapted to operate under a high temperature environment, the group division ratio can be approaching a minimum content of impurities, to ensure the purity of the steel material to improve the high speed steel bar is subjected to load.