Widely used cold work mould steel, with good quench-hardening ability, good wear resistance ,as well hot workability.

Making efficient blanking mould, stamping mould, all kinds of scissors ,cold shearing ,drilling bushing ,gauge, wortle, coining die, thread rolling die, screw thread rolling die，cold extrusion dies .

C ：2.00～2.30 Si：≤0.40  Mn：≤0.40  S ：≤0.030  P ：≤0.030 Cr：11.50～13.00  Ni：≤0.25 Cu：≤0.30 Co：≤1.00

Heat treatment standard:

(1) Quenching, 950 ~ 1000 centigrade cold oil; 

(2) Quenching 980 centigrade, cold oil, 180 centigrade tempering 2 hours

Annealing temperature: 800-850 Centigrade

Annealing hardness: 248 HB Max.

Destressing temperature: 650 Centigrade Approx.

Hot forming temperature: 1050-850 Centigrade

Quenching temperature: 940-970 Centigrade

Hardening media: oil quenching, salt bath 220-250 Centigrade or 500-550 Centigrade, air or compressed air.

Quenching hardness: 63-65 HRC

 Delivery condition :

 Annealed