Struggling to choose the right graphitized carburizer for casting? This guide cuts through confusion—critical for global foundries facing supply shortages and quality demands .
Three types fit every need:
- Petroleum coke-based: >98.5% fixed carbon, <0.05% sulfur —ideal for high-end ductile iron and precision cast steel, solving white cast iron risks.
- Coal-based: 90-95% fixed carbon, 0.1-0.3% sulfur, cost-effective for ordinary gray cast iron.
- Natural graphite-based: 95-98% fixed carbon, fast absorption —speeds up medium-frequency furnace melting (1-5mm particle size) .
Key checks: ≥98% carbon for premium parts, ≤0.05% sulfur for ductile iron. Test graphitization via few dark red sparks . Match 5-10mm size for cupola furnaces
As global graphite supply tightens, our stable inventory can meet urgent needs. Contact us for a custom quote and free selection assistance.
Post time: Oct-11-2025