P-20 1.2083 ESR plastic moulding steel
P-20 1.2083 ESR plastic moulding steel
Specification
Supreme polishability, excellent corrosion resistance and good wear resistance. Its application are plastic moulds, particularly for acid aggressive plastic (i.e acetate and PVC). Or plastic containing abrasive fillers. For highest lens quality, polished finishes etc.
Application
mold for compact disc, medical laboratory equipment, optical lenses and other components, which require critical surface finishes.
Chemical Analysis %
| C | Mn | Cr | Si | P | S |
|---|---|---|---|---|---|
| 0.36- 0.42 | 1.00 max | 12.50-14.50 | 1.00 max | 0.030 MAX | 0.030 MAX |
Delivery condition
Annealed 230 HB
Heat Treatment
Annealed 230 HB
Heat Treatment
| Soft Annealing | Cooling | Hardness | Hardening | Quenching | Hardness after quenching HRC |
|---|---|---|---|---|---|
| 760-800°C | Furnace | 230 HB | 1000-1050°C | Oil or thermal bath cooling, 500-550°C | 52-54 HRC |
Tempering °C
| Tempering°C | 100 | 200 | 300 | 400 | 500 | 600 |
|---|---|---|---|---|---|---|
| HRC | 54 | 53 | 52 | 51 | 50 | 45 |