Cr12W wear-resistant cold work die steel. The Cr12W high wear-resistant chromium steel, high carbon, high chromium ledeburite steel, cold work die steel with high hardenability, hardenability, strength and toughness, abrasion resistance and quench volume deformation and other small features used to make cross section is large, complex shape to withstand the impact force, require high wear resistance of cold-working die. Cold Working Die Die, drawing die, drawing die, pressure die thread rolling die, roll silk panels, cold heading die, and cold extrusion die and so on. Cold-working die steel, the working conditions of its manufacture with a high hardness, strength, wear resistance, sufficient toughness, and high hardenability, hardened, and other process performance. Alloy tool steel used for these purposes are generally high-carbon alloy steel, carbon content above 0.80%, chromium is an important alloying elements of the type of steel, its mass fraction is usually not more than 5%. Demanding but for some of the wear resistance, the deformation is small mold steel after quenching, the highest chromium mass fraction of 13%, and for the formation of a large number of carbides in the steel carbon content is also high, up 2.0 percent ~~ 2.3%. Cold work die steel, high carbon content, the organization belonged to the eutectoid steel or ledeburite. Commonly used class of steel high-carbon low-alloy steel, high carbon high chromium steel, chromium molybdenum steel, carbon, chromium tungsten Kushiro steel, etc. 

 Chemical composition: 
 Carbon C :2.00-2 .30 chromium Cr: 11.00-12.50 Mo of Mo: ≤ 0.35 Silicon Si: ≤ 0.40 Phosphorus P: 0.03 sulfur S: 0.03 Tungsten W :0.60-0 .90