| NOMINAL ANALYSIS | C .40; Mn 1.50; Cr 2.00; Mo .20; S .10 |
| DELIVERY CONDITION | Hardened and Tempered 1000 Nmm2 approx. |
| CHARACTERISTICS | A pre-hardened bloster/mould steel with controlled sulphur addition to give excellent machinability. 20 Plus HS is not suitable for texturing and 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 37 |
| APPLICATIONS | Bolsters for mould and die-casting tools, plastic mould tools not requiring texturing. |