COLD WORK DIE STEEL, DIE, AND METHOD FOR PRODUCTION OF COLD WORK DIE STEEL

摘要

Disclosed is a cold work die steel which comprises (by mass): C: 0.20-0.60%, Si: 0.5-2.00%, Mn: 0.1-2%, Cr: 3.00-9.00%, Al: 0.3-2.0%, Cu: 1.00-5%, Ni: 1.00-5%, Mo: 0.5-3% and/or W: 2% or less (including 0%), and S: 0.10% or less (excluding 0%) wherein these components satisfy the following requirements (1) to (3) [wherein each square bracket [ ] means a content (%) of each element]: (1) [Cr] x [C]≤3.00; (2) [Cu]/[Ni]: 0.5-2.2; and (3) [Mo]+0.5 x [W]: 0.5-3.0%, with the remainder being iron and unavoidable impurities. Also disclosed is a die produced by using the steel. Further disclosed is a method for producing the cold work die steel.