Carbon Cored Wire
Carbon Cored Wire is a steel-encapsulated metallurgical additive engineered for precise ladle re-carburization and secondary refining. By injecting high-purity carbon powder deep into molten steel via automatic feeding equipment, it bypasses slag interactions, maximizes carbon absorption, and eliminates chemistry off-gauge risks in EAF, LF, and foundry processes.
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Product Introduction
Carbon Cored Wire is a steel-encapsulated metallurgical additive engineered for precise ladle re-carburization and secondary refining. By injecting high-purity carbon powder deep into molten steel via automatic feeding equipment, it bypasses slag interactions, maximizes carbon absorption, and eliminates chemistry off-gauge risks in EAF, LF, and foundry processes.
Specifications
|
Parameter |
Standard Specification |
|
Product Name |
Carbon Cored Wire |
|
Core Material |
Synthetic Graphite / High-Purity Carbon Powder |
|
Fixed Carbon (C) |
≥ 95% |
|
Sulfur (S) |
≤ 0.05% |
|
Ash Content |
≤ 1.0% |
|
Moisture |
≤ 0.5% |
|
Wire Diameter |
13 mm (Standard) |
|
Steel Strip Thickness |
0.40 mm |
|
Sheath Material |
Low-Carbon Cold-Rolled Steel Strip |
|
Filling Density |
≥ 220 g/m (for 13mm) |
Product Features
85%–95% Carbon Recovery: Injects directly into the steel bath below the slag line, eliminating surface oxidation and slag trapping to ensure consistent final chemistry with minimal off-gauge heats.
Non-Breakable Lock-Seam Sheath: High-density cold-rolled steel strip encapsulation maintains strict outer diameter tolerances (±0.3 mm), preventing powder leakage, core jamming, or wire snap at feeding speeds up to 250 m/min.
Low-Impurity Melt Protection: Ultra-low sulfur (≤ 0.05%) and low ash (≤ 1.0%) formulation minimizes refractory lining wear, prevents slag volume build-up, and protects high-purity steel grades from tramp element contamination.
Measurable Thermal & Power Savings: Accelerated dissolution shortens ladle furnace (LF) refining cycles by 3–5 minutes, lowering power consumption (kWh/ton) and reducing liquid steel temperature drop during treatment.
Customization Services
|
Customization Option |
Parameter Range / Choices |
|
Core Material Formulation |
Carbon 95%–99%, Synthetic/Flake Graphite, CPC, Low-S (≤ 0.02%), Low-Ash (≤ 0.5%) |
|
Wire Dimensions |
Diameter: 9 mm, 13 mm, 16 mm Strip Thickness: 0.35 mm–0.50 mm |
|
Filling Density |
180 g/m – 250 g/m |
|
Coil Dimensions & Weight |
Weight: 500 kg – 2,000 kg Inner Diameter: 600 mm (Customizable) |
|
OEM & Branding |
Custom coil tags, private label logos, shipping marks |
|
Export Packaging |
VCI anti-rust film, heavy-duty stretch film, steel cage pallets, wooden pallets |
Quality Control
Raw Material Testing: Carbon purity, grain size distribution, and moisture content verified via LECO analyzers before production.
In-Line Monitoring: Ultrasonic seam inspection and continuous weight sensors verify filling uniformity along the full wire length.
Mechanical Integrity: Samples undergo seam tightness and 180° bend testing to guarantee zero breakage during automated feeding.
Traceability: Batch tracking codes printed on each coil.
Packaging & Export Logistics
Steel Cage & Pallet Protection: Coils mounted on reinforced steel or fumigated wooden pallets with protective internal steel framing.
Hermetic Vapor Protection: VCI anti-rust film with multi-layer heavy-duty stretch wrapping for sea transport humidity defense.
Lifting & Handling: Built-in heavy-duty lifting straps compatible with standard overhead cranes and forklifts.
Container Loading: Secured with steel strapping and dunnage bags to avoid coil shift in transit.
Why Partner with Anyang Jingfengyuan Ferroalloy?
31-Year Metallurgical Lineage:
Established in 1995, we leverage over three decades of manufacturing experience and 22+ senior engineers to offer tailored alloy ratios and tight tolerance controls.
Scalable Output & Fast Delivery:
80,000+ m² manufacturing base with 8+ dedicated production lines, ensuring an annual output of tens of thousands of tons for bulk orders.
Advanced & Mechanized Production:
Equipped with upgraded medium-frequency induction furnaces and fully automated workflows for consistent chemical uniformity.
Certified Quality Assurance:
Full batch traceability under ISO 9001, ISO 14000, and GJB 9001 standards, backed by complete in-house lab testing.
Global Logistics & Export Reach:
Proven export track record with reliable fulfillment, serving industrial clients across 86+ countries.
FAQ
Q: What typical carbon recovery rate can be expected from your Carbon Cored Wire?
A: Under standard LF refining conditions, carbon recovery ranges between 85% and 95%. Actual recovery depends on steel temperature, oxygen potential, and feeding speed.
Q: How does Carbon Cored Wire compare to surface addition of graphite recarburizers?
A: Cored wire delivers carbon directly into the steel bath below the slag line, yielding 15–20% higher carbon recovery, faster dissolution, and zero atmospheric airborne dust loss.
Q: Can your wire be processed by high-speed dual-strand feeders without line jamming?
A: Yes. The mechanical integrity of our lock-seam structure, combined with strictly controlled diameter tolerances, prevents sheath opening or core powder slippage under high tension and maximum feed rates.
Q: What is the shelf life and moisture precaution for overseas shipments?
A: When stored in dry, covered conditions, the vacuum-sealed VCI anti-rust wrapping guarantees a shelf life of up to 12 months without core oxidation or moisture absorption.
Q: How do you ensure uniform carbon density along the entire wire length?
A: In-line continuous weight sensors continuously monitor core powder dosing relative to feeding speed during production, maintaining filling density variance within ±2% per linear meter.
Q: What coil sizes fit standard overseas unwinding pay-off frames?
A: Standard coils feature an inner diameter of 600 mm and outer diameter up to 1,200 mm, fitting standard vertical and horizontal payout systems used globally.
Q: How do I choose between synthetic graphite, natural graphite, and CPC core formulations?
A: Synthetic graphite is ideal for strict low-sulfur steel grades; natural flake graphite balances dissolution speed and cost; calcined petroleum coke (CPC) provides a cost-effective choice for standard carbon adjustment where higher sulfur tolerance is permitted.
Q: What documentation is provided for export clearance?
A: Every shipment includes a Mill Test Certificate (MTC) conforming to EN 10204 3.1, Certificate of Origin, SDS (Safety Data Sheet), and commercial shipping documents.
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