As a high-performance hot work die steel, the core highlight of H10 steel lies in its excellent high-temperature strength and thermal fatigue resistance. H10 steel can maintain a hardness of over 85% at a high temperature of 500 ℃ through optimized alloy ratios (such as 3% Cr, 2-3% Mo, and vanadium elements), while also possessing excellent thermal shock resistance and toughness. H10 steel is particularly suitable for harsh working conditions such as aluminum alloy die-casting molds and hot forging molds, significantly extending mold life and reducing maintenance costs.