D3/1.2080/Cr12 cold work tool steel

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D3/1.2080/Cr12 cold work tool steel
Posting date : Apr 13, 2012
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72-
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Performance Characteristics: Widely used cold work mould steel, with good quench-hardening ability, good wear resistance ,as well hot workability. Applications: 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 . Chemical Composition (%): 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 : Annealing

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