Cr12W wear-resistant cold work die steel

Cr12W is a high-carbon, high-chromium ledeburitic cold work die steel, belonging to the category of wear-resistant cold work die steel.
 
Chemical Composition (Mass Fraction %) of Cr12W Wear-Resistant Cold Work Die Steel:
Carbon (C): 2.00%–2.30% (Forms a large volume of carbides, ensuring ultra-high wear resistance and hardness).
Chromium (Cr): 11.00%–12.50% (The primary alloying element; forms Cr₇C₃-type carbides, providing corrosion resistance and wear resistance, while also enhancing hardenability).
Tungsten (W): 0.60%–0.90% (Forms hard carbides such as WC and W₂C, enhancing wear resistance, red hardness, and high-temperature performance).
Molybdenum (Mo): ≤0.35% (Assists in improving hardenability and strength).
Silicon (Si): ≤0.40%.
Manganese (Mn): ≤0.60% (A common residual element).
Phosphorus (P): ≤0.030% (Strictly controlled to reduce grain boundary embrittlement).
Sulfur (S): ≤0.030% (Strictly controlled; improves machinability but requires measures to prevent hot shortness).
 
Cr12W Mold Steel Heat Treatment Process:
The heat treatment process for Cr12W mold steel primarily consists of quenching, tempering, and aging treatment.
 
Cr12W mold steel is widely used in the manufacture of various cold-work molds, such as blanking dies, cold heading dies, and cold extrusion dies.