CPC C22C 38/04 (2013.01) [C21D 8/005 (2013.01); C22C 38/005 (2013.01)] | 9 Claims |
1. A method for preparing a rare earth die steel, comprising converter smelting, LF secondary refining, VD refining treatment, casting, electroslag remelting, homogenization treatment, hot forging, and heat treatment performed in sequence,
wherein the rare earth die steel comprises, by mass percentage, the following components: 0.36%-0.41% of C, 0.80%-1.10% of Si, 0.30%-0.50% of Mn, 4.90%-5.40% of Cr, 1.35%-1.55% of Mo, 0.8%-1.1% of V, 0.001%-0.005% of B, 0.006%-0.01% of Y, 0.001%-0.005% of Mg, no more than 0.003% of S, no more than 0.012% of P, no more than 0.0015% of O, less than 0.005% of H, and the balance of Fe, wherein 0.01%<Y+Mg<0.02%.
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