1.2345/H10 Tool Flat Steel Bar featuring tungsten-based hot work tool steel with 2.5-3.2% W, 2.5-3% Mo, and 3% Cr. Available in precision-milled finishes with tight tolerances from 5-100mm thickness. Offers exceptional hot hardness up to 600°C, outstanding wear resistance, and excellent thermal fatigue resistance. Ideal for heavy-duty forging dies, hot extrusion tooling, aluminum die casting, and applications requiring superior high-temperature performance.