Grade: 1.2436 
 Properties and uses: 
 German DIN standard extra high toughness chrome steel, cold work die steel. High wear resistance and edge retention capacity. 
 Quenching and tempering specification: 
 Quenching temperature of 960-980 ° C, oil cooling. Tempering temperature of 180 ° C ± 10 ° C. 
 Application examples: 
 1, high wear resistance, long life, all kinds of cold punching mold and cold shear blade Roll plate. 
 2, applies to the complex shape, the easy deformation of the tool mode. 
 Chemical composition: 
 Carbon C :2.00-2 .30 
 Chromium Cr :11.50-13 .00 
 Manganese Mn: not more than 0.40 
 Si Si: not more than 0.40 
 Phosphorus P: not more than 0.030 
 Sulfur S: not more than 0.030