CaFe Cored Wire – Calcium Iron Wire for Deep Desulfurization & Inclusion Engineering (Ca≥30% / Ca≥32%)
High-quality calcium iron cored wire for efficient desulfurization, calcium treatment, and alloying in ladle furnaces. Available in Ø9mm, Ø13mm with custom core weight and Ca:Fe ratio.
| Core Composition | Ca 30%min, Fe balance, Al ≤1.0%, C ≤0.5% |
| Wire Specifications | Diameter: Ø13mm ±0.5mm; Sheath: Low-carbon steel; Core weight:260 g/m (Ø13mm) |
| Application | Deep desulfurization in secondary steelmaking, inclusion modification, calcium addition for AHSS and linepipe grades |
| Standard | YB/T 053-2016, ASTM A495, custom specs available |
CaFe Cored Wire – Product Overview
Our CaFe cored wire consists of a low-carbon steel sheath tightly filled with high-purity calcium-iron alloy powder (typical Ca 30-35%). It enables precise calcium addition into molten steel for deep desulfurization and effective inclusion modification, especially in high-grade steel production.
Product Core Advantages
- High Calcium Content: Core powder with Ca ≥30% ensures high efficiency in calcium treatment.
- Stable Feeding: Robust steel sheath and uniform filling guarantee consistent wire feeding without breakage.
- Deep Desulfurization: Achieve sulfur levels below 0.001% when combined with proper slag practice.
- Custom Ratios: Available in Ca 30, 35, or tailored Ca:Fe ratios to meet specific metallurgical targets.
- Low Impurities: Strict control of Al, C, and other tramp elements for clean steel applications.
Typical Application Areas
- Deep Desulfurization: Essential for pipeline steels, ship plate, and API grades requiring S < 10 ppm.
- Calcium Treatment: Modify alumina inclusions to liquid calcium aluminates in Al-killed steels.
- Alloying: Adjust calcium content in specialty alloys and high-cleanness steels.
- Inclusion Engineering: Improve fatigue properties in bearing steels and spring steels.
For specific wire specifications, contact our technical team for personalized recommendations.
Technical Specifications – CaFe Cored Wire
Our cored wire meets rigorous international standards. Below are typical specifications for CaFe grades.
Cored Wire Parameters
| Parameter | Ø13mm Wire |
|---|---|
| Diameter (mm) | 13.0 ±0.5 |
| Sheath Thickness (mm) | 0.35-0.45 |
| Core Weight (g/m) | 260 (customizable) |
| Total Weight (g/m) | 430 |
| Core Powder Grade | CaFe ca30 (specify upon order) |
Core Powder Chemical Composition (Typical)
| Grade | Ca (%) | Fe (%) | Al (%) | C (%) |
|---|---|---|---|---|
| CaFe ca30 (core) | ≥30.0 | balance | ≤1.0 | ≤0.5 |
| CaFe ca32 | ≥32.0 | balance | ≤1.0 | ≤0.5 |
| CaFe ca33 | ≥33.0 | balance | ≤1.0 | ≤0.5 |
Available Powder Grades for Core
- Standard: CaFe ca30 (Ca≥30%)
- High Calcium: CaFe ca33 (Ca≥33-35%)
- Custom: Specific Ca:Fe ratios available on request
Application Guidelines – CaFe Cored Wire
Deep Desulfurization
Feed CaFe wire into steel after deoxidation and deslagging. Optimal feeding depth: 200-350 mm. Wire speed 3-6 m/s. Combined with high-basicity slag, sulfur can be reduced below 0.001%.
Inclusion Modification
For Al-killed steels, CaFe wire modifies solid Al₂O₃ inclusions into liquid calcium aluminates, significantly reducing nozzle clogging. Typical addition: 2-6 m/ton depending on initial Al and target Ca.
Feeding Parameters
- Wire Speed: 2.5-6 m/s (150-360 m/min)
- Injection Depth: 200-400 mm below slag
- Stirring: Gentle argon rinsing for 3-5 minutes after injection
Packaging & Logistics – CaFe Cored Wire
Packaging Options
- Spools: Heavy-duty steel spools, 1600-2000 kg per spool.
- Coils: Ribbon-wound coils for pay-off from top.
- Protection: Moisture-proof wrapping and steel banding.
- Custom Spools: Dimensions adaptable to customer feeding systems.
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 – CaFe Cored Wire
What is the calcium recovery from CaFe wire compared to SiCa?
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CaFe wire typically offers slightly higher calcium recovery (15-30%) due to absence of silicon, which can affect calcium activity. Recovery depends on bath temperature and injection practice.
Which steel grades benefit most from CaFe wire?
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Pipeline steels (API 5L X70/X80), sour service grades, bearing steels, and tire cord steels requiring ultra-low sulfur and strict inclusion control benefit significantly.
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.
Can you supply CaFe wire with customized Ca content?
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Yes, we can adjust the Ca:Fe ratio between 60% and 85% Ca based on your metallurgical requirements.
Do you provide a certificate of analysis per spool?
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Absolutely. Every production batch includes a COA with detailed core chemistry and wire dimensions.
Is CaFe wire hygroscopic?
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Calcium alloys can react with moisture. Our packaging ensures moisture protection, and we recommend storage in dry conditions (<60% humidity).
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
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