Double Poured Chilled (DPIC)
Double Poured Chilled (DPIC)
The microstructure of DPIC has a gradual transition from a carbide-rich surface containing a small amount of graphite to a grey core. The surface is intermediate between white & grey iron, with the amount of graphite reducing in harder grades toward the Centre of the roll. The presence of flake graphite enhances chipping resistance and fire-cracking resistance, making DPIC suitable for products that require an excellent surface finish. The material is ideal flat, section and similar products with deeper grooves.
| HARDNESS (SHORE 'C') | C% | SI% | MN% | P% | S% | CR% | NI% | MO% |
|---|---|---|---|---|---|---|---|---|
| 70-75 | 3.20-3.50 | 0.75-0.95 | 0.75-0.95 | 0.040-1.00 | 0.030-0.050 | 1.20-1.60 | 2.60-3.20 | 0.25-0.35 |
| 75-80 | 3.20-3.50 | 0.75-0.95 | 0.75-0.95 | 0.040-1.00 | 0.030-0.050 | 1.30-1.70 | 2.70-3.40 | 0.25-0.35 |