NOMINAL ANALYSIS % | C .40; Mn 1.50; Cr 2.00; Mo .20 |
DELIVERY CONDITION | Hardened and Tempered 1000 Nmm2 approx. |
CHARACTERISTICS | A pre-hardened mould steel suitable for texturing and capable of taking a good polish. 20 Plus is intended for use in the delivered condition. |
HEAT TREATMENT |
Annealing oC 720-750 Stress Relieving oC 580-600 Hardening oC 830-870 Quench Oil, salt at oC 180-220 Tempering oC 500 550 600 HRC 42 39 38 |
APPLICATIONS | Plastic mould tools, bolsters for mould and die-casting tools. |