Carbon Cored Wire – Recarburizer Wire for Precise Carbon Control (C 95-98%, Low S, N)
High-purity carbon cored wire (graphite/ petroleum coke based) for accurate carbon adjustment in ladle furnaces, electric arc furnaces, and foundry melting. Ø9mm, Ø13mm with custom core fillings.
| Core Composition | Fixed Carbon 95-98%, Sulfur ≤0.05%, Nitrogen ≤0.03%, Ash ≤1.0% (graphitic or calcined petroleum coke) |
| Wire Specifications | Diameter: Ø13mm ±0.5mm; Sheath: Low-carbon steel (or steel strip); Core weight: 300-400 g/m (Ø13mm) |
| Application | Carbon raising in steel refining, recarburization of ductile iron, adjustment of C in special alloys |
| Standard | YB/T 053-2016, ISO 9001 quality control |
Carbon Cored Wire – Product Overview
Our carbon cored wire is engineered for metallurgical plants requiring precise and efficient carbon addition. The core consists of high-purity graphitic carbon or calcined petroleum coke with minimal sulfur, nitrogen, and ash, enclosed in a formed steel sheath.
Product Core Advantages
- High Carbon Recovery: Typically 85-95% recovery due to deep injection into liquid steel.
- Ultra-Low Impurities: S ≤0.05%, N ≤0.03% – ideal for clean steel and foundry applications.
- Consistent Feed Rate: Uniform core density ensures accurate carbon addition control.
- No Dust Loss: Encapsulated design eliminates carbon dust during handling and feeding.
- Customizable: Available in different carbon sources (graphite, CPC) and core weights.
Typical Application Areas
- Ladle Furnace Recarburization: Fine-tune carbon content after decarburization.
- Ductile Iron Production: Precise carbon adjustment for nodular graphite formation.
- Specialty Steel Grades: Bearing steels, spring steels requiring tight carbon ranges.
- Foundry Melting: Carbon correction in induction furnaces with minimal nitrogen pickup.
For specific wire specifications, contact our technical team for personalized recommendations.
Technical Specifications – Carbon Cored Wire
Cored Wire Parameters
| Parameter | Ø13mm Wire |
|---|---|
| Diameter (mm) | 13.0 ±0.5 |
| Sheath Thickness (mm) | 0.35-0.45 |
| Core Weight (g/m) | 130 (customizable) |
| Total Weight (g/m) | 300 |
| Core Material | Graphite / Calcined Petroleum Coke (CPC) |
Core Powder Chemical Composition (Typical)
| Grade | Fixed C (%) | S (%) | N (%) | Ash (%) |
|---|---|---|---|---|
| High-Purity Graphite Core | ≥98.0 | ≤0.05 | ≤0.02 | ≤0.8 |
| Premium CPC Core | ≥97.0 | ≤0.05 | ≤0.03 | ≤1.0 |
| Standard CPC Core | ≥95.0 | ≤0.10 | ≤0.05 | ≤1.2 |
Available Core Grades
- Graphitic: Ultra-low S & N for highest quality steel.
- Petroleum Coke: Cost-effective with good purity levels.
- Custom Blends: Available for specific metallurgical targets.
Application Guidelines – Carbon Cored Wire
Recarburization in Ladle Furnace
Feed after deoxidation and deslagging. Wire speed 2-5 m/s, depth 200-400 mm. Carbon recovery typically 85-95%. Adjust feed length based on target carbon and bath weight.
Foundry Applications
For ductile iron, feed at 1400-1480°C to achieve desired CEV. Avoid excessive nitrogen pickup by using low-N core grades.
Feeding Parameters
- Wire Speed: 2-5 m/s (120-300 m/min)
- Injection Depth: 250-450 mm below slag/melt surface
- Stirring: Moderate argon stirring for homogenization
Packaging & Logistics – Carbon Cored Wire
Packaging Options
- Spools: Heavy-duty steel spools, 1000-1500 kg per spool.
- Coils: Ribbon-wound coils for continuous feeding.
- Protection: Wrapped with moisture-proof stretch film and steel bands.
- Custom Spool Size: Available to match uncoiler specifications.
Logistics Information
| Parameter | Details |
|---|---|
| Minimum Order Quantity | 10 metric tons (trial orders negotiable) |
| Lead Time | 15-20 days after order confirmation |
| Port of Loading | Main Chinese ports (Tianjin, Shanghai, Qingdao) |
| Shipping Options | FOB, CIF, CFR, DAP |
| Payment Terms | T/T, L/C at sight |
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Frequently Asked Questions – Carbon Cored Wire
What is the typical carbon recovery from carbon cored wire?
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Recovery ranges from 85% to 95% depending on injection depth, bath temperature, and slag condition. Proper feeding practice maximizes yield.
Can carbon wire be used for ductile iron treatment?
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Yes, it is commonly used to adjust carbon equivalent in ductile iron production, especially when using low-nitrogen graphite cores.
What sulfur levels can I expect from your carbon core?
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Our high-purity graphite core has S ≤0.05%; CPC core S ≤0.05%. Custom lower sulfur available on request.
Do you offer different core weights for the same diameter?
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Absolutely. Core weight can be customized between 300-400 g/m for Ø13mm.
Is it possible to entrust a third-party inspection to check the quality before shipment?
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Certainly, we support third-party inspections by internationally recognized quality inspection agencies such as SGS and BV to verify product quality before shipment. The inspection covers product appearance, weighing, dimensions, and chemical composition analysis. The entire inspection process will be documented with photos and written records, which will be provided to you together with the final inspection report. This ensures you have no concerns regarding product quality.
Is carbon cored wire sensitive to moisture?
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Carbon itself is not hygroscopic, but the steel sheath can rust. Store in dry conditions to preserve wire quality.
Why Choose Our Coredwire
20+ Years Experience
Specialized in ferroalloy production with deep industry knowledge
Strict Quality Control
Every batch tested to ensure consistent composition and performance
Global Delivery
Reliable logistics network ensuring timely delivery worldwide
Quality & Production Showcase
Explore our quality control process, production facilities, and customer interactions
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