Product Overview
This premium carburizer is manufactured from high-quality Ningxia anthracite through specialized calcination processes, featuring fixed carbon content ≥95%, sulfur content ≤0.3%, and ash content ≤3%. It serves as an ideal carbon additive for premium casting and special steel smelting applications.
Key Specifications
|
Parameter |
Standard Value |
Advantages |
|
Fixed Carbon (FC) |
≥95% |
Ultra-high carbon content, improves carburization efficiency by 20%+ |
|
Sulfur Content (S) |
≤0.3% |
Prevents sulfur embrittlement, ideal for ductile iron |
|
Ash Content |
≤3% |
Reduces slag formation and cleaning costs |
|
Volatile Matter (V) |
≤1% |
Excellent high-temperature stability with minimal fuming |
|
Absorption Rate |
≥90% |
Fast dissolution (5-8 minutes), energy efficient |
|
Particle Size |
1-10mm (customizable) |
Adaptable to various furnace types |
Manufacturing Process
Raw Material Purification: Selected low-sulfur petroleum coke (S≤0.5%).
High-Temperature Graphitization:
Treated above 2500°C in an inert atmosphere to transform amorphous carbon into a regular graphite structure.
Crushing & Classification:
Laser particle size control (typical range: 0.2-5mm).
Product Features
High Efficiency:
1% addition per ton of molten iron increases carbon equivalent by 0.08-0.12%
Exceptional Purity:
Free from heavy metal impurities, compliant with EU REACH regulations
Cost-Effective:
30-40% more economical than graphite carburizers with more stable performance than petroleum coke-based products
Typical Applications
Premium Casting:
Wind turbine shafts, automotive engine blocks and other ductile iron components (carbon control ±0.03%)
Special Steel Smelting:
Precision carbon adjustment for mold steels, bearing steels and other low-carbon steel grades
Alloy Production:
Carbon composition adjustment for ferroalloys like ferrosilicon and ferrochrome
Usage Recommendations
EAF Melting:
Charge with scrap at furnace bottom to prevent oxidation
Pre-Treatment:
Requires 1-hour drying at 150°C in humid environments
Optimal Blending:
Enhanced performance when used with low-sulfur inoculants
Packaging & Storage
- 1-ton big bags (1000kg/bag) or customized packaging
- Store in dry conditions with 12-month shelf life
ISO 9001 certified, this product is widely used in automotive, energy and machinery manufacturing sectors. Custom particle size solutions and technical support available.
(Note: Ultra-pure models with 96-98% fixed carbon available upon request)
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Contact us for specific model parameters or product samples!