What Is The Price Of Carbon Cored Cored Wire? What Is A Carbon Cored Cored Wire?
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What is a Carbon Cored Cored Wire?
Core material composition: High-purity carbon powder (carbon content ≥96%), primarily graphite powder or asphalt coke powder.
Coating material: Cold-rolled low-carbon steel strip (approximately 0.4 mm thick) wraps the core powder, forming a wire with a diameter of 13 mm ± 0.6 mm.
Physical properties: Core powder density ≥130 g/m, wire weight approximately 300 g/m, precisely compressed using a wire pressing machine.
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Compared to directly spreading carbon additives, the steel shell coating reduces carbon powder floatation and burn loss, improving carbon element utilization by over 30%.
Precise carbon content control
By feeding the carbon wire into the molten steel through a wire feeder, the steel shell melts, allowing the carbon powder to diffuse uniformly, achieving a carbon content adjustment accuracy of ±0.02%.
Typical application: compensating for carbon element loss in special steel production (e.g., electric arc furnace production of high-carbon steel).
Improved metallurgical efficiency
Yield advantage: Carbon element yield remains stable at over 90% (traditional carbon additives only achieve 60-70%).
Cost optimization: Reduces carbon addition costs per ton of steel by approximately 40% and minimizes alloy waste.
Improving molten steel properties
Promotes nucleation, enhancing the tensile strength of castings (approximately 15% improvement in cast iron applications).
Reduces secondary oxidation caused by steel liquid gas absorption, maintaining melt pool stability.
Steel production field
Out-of-furnace refining: Compensates for carbon content in LF furnaces and ladle furnaces, suitable for high-end steel grades such as bearing steel and tool steel.
Continuous casting preparation: Regulates carbon content in intermediate ladle steel liquid to prevent composition fluctuations causing casting defects.
Casting industry
Cast iron carbon enrichment: Enhances the carbon equivalent of molten iron and optimizes graphite morphology distribution.
Ductile iron: Used in conjunction with magnesium alloy core wires to balance carbon-sulfur ratios.
✅ High-precision carbon control (±0.02% deviation);
✅ Efficient resource utilization (carbon recovery rate >90%);
✅ Cross-scenario adaptability (steel making carbon addition/casting reinforcement).
Its technical maturity and cost-effectiveness have made it the mainstream solution to replace traditional carbon additives.
| Product (yuan/ton, tax included) | area | Transaction price on July 10 | Transaction price on July 9 | Change Yuan/ton |
| Carbon cored wire C96-99%∮13mm | Henan | 4800-5100 | 4800-5100 | flat |
| Jiangsu | 5000-5300 | 5000-5300 | flat |
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