GPC recarburizer specifications ZW01–ZW04
Jiushun GPC recarburizer / carbon raiser is produced from petroleum coke by high-temperature graphitization (~2,800 °C). Standard grades ZW01–ZW04 list fixed carbon from ≥98.0% to ≥99.0%, sulfur (sulphur) ≤0.05%, and nitrogen 100–300 ppm. Particle sizes include 0–2 mm, 1–5 mm (most requested), 3–5 mm and 5–8 mm; other sizes on request.
Particle sizes:0–2 mm · 1–5 mm (most requested) · 3–5 mm · 5–8 mm
| Grade | F.C. min | S max | Ash max | V.M. max | Moisture max | N |
|---|---|---|---|---|---|---|
| ZW01 | ≥99.0% | ≤0.05% | ≤0.5% | ≤0.5% | ≤0.50% | 100 ppm |
| ZW02 | ≥98.5% | ≤0.05% | ≤0.6% | ≤0.9% | ≤0.50% | 200 ppm |
| ZW03 | ≥98.5% | ≤0.05% | ≤0.7% | ≤0.8% | ≤0.50% | 200 ppm |
| ZW04 | ≥98.0% | ≤0.05% | ≤1.0% | ≤1.0% | ≤0.50% | 300 ppm |
Source: factory specification sheet. Indicators and particle sizes can be customised to the purchase order.
Notes
Indicators and particle sizes can be adjusted to the buyer’s written specification. Common listed size: 1–5 mm; also 0–2 mm, 3–5 mm and 5–8 mm.