Pure Calcium Cored Wire – Metallic Ca Wire for Deep Desulfurization & Nodulizing (Ca≥97%)
High-purity metallic calcium cored wire for maximum calcium efficiency in secondary metallurgy, inclusion engineering, and nodular graphite treatment in ductile iron. Available in Ø9mm, Ø13mm with controlled core density.
| Core Composition | Metallic Calcium ≥97%, Mg ≤0.5%, Al ≤0.5%, balance impurities |
| Wire Specifications | Diameter: Ø9mm ±0.5mm Sheath: Low-carbon steel; Core weight: 65 g/m (Ø9mm) |
| Application | Deep desulfurization, inclusion modification, calcium treatment, nodulizer in ductile iron production |
| Standard | YB/T 053-2016, ASTM A495, ISO 9001 |
Pure Calcium Cored Wire – Product Overview
Our pure calcium cored wire features a steel sheath containing high-purity metallic calcium (Ca≥97%). It provides the most concentrated form of calcium addition for steel and iron treatment, enabling deep desulfurization, precise inclusion modification, and nodularizing efficiency with minimal wire consumption.
Product Core Advantages
- Maximum Calcium Purity: ≥97% Ca ensures high reactivity and efficient treatment.
- Lowest Impurities: Strict control of Mg, Al, and other elements avoids side reactions.
- High Recovery: Optimized sheath thickness and filling density for stable deep injection.
- Nodulizing Efficiency: Ideal for producing ductile iron with minimal residual elements.
- Custom Core Weight: Tailored to specific ladle sizes and calcium targets.
Typical Application Areas
- Deep Desulfurization: Achieve ultra-low sulfur (<5 ppm) in pipeline and specialty steels.
- Inclusion Modification: Transform Al₂O₃ inclusions into liquid calcium aluminates.
- Nodulizer in Ductile Iron: Replace magnesium for certain nodularizing applications.
- Calcium Treatment for Castability: Prevent nozzle clogging in continuous casting.
For specific wire specifications, contact our technical team for personalized recommendations.
Technical Specifications – Pure Calcium Cored Wire
Cored Wire Parameters
| Parameter | Ø9mm Wire |
|---|---|
| Diameter (mm) | 9.0 ±0.5 |
| Sheath Thickness (mm) | 0.5-0.7 |
| Core Weight (g/m) | 65 |
| Total Weight (g/m) | 240 |
| Core Material | Metallic Calcium (calcium wire) |
Core Metal Chemical Composition (Typical)
| Grade | Ca (%) | Mg (%) | Al (%) | Fe (%) |
|---|---|---|---|---|
| Pure Calcium 97 | 97.0±1 | ≤0.5 | ≤0.7 | ≤0.5 |
Available Purity Grades
- Standard: Ca97±1% for most steel/foundry applications.
Application Guidelines – Pure Calcium Cored Wire
Calcium Treatment in Steel
Feed after deoxidation at 1500-1650°C. Recommended depth: 250-400 mm, wire speed 3-7 m/s. Calcium recovery 10-25% depending on conditions. Typical addition: 0.5-3 kg Ca/ton steel.
Nodulizing in Ductile Iron
Feed at 1450-1500°C. Pure calcium provides nodularizing effect with low fading. Combine with silicon if needed.
Feeding Parameters
- Wire Speed: 3-7 m/s (180-420 m/min)
- Injection Depth: 250-400 mm below slag
- Stirring: Gentle argon rinsing for homogenization
Packaging & Logistics – Pure Calcium Cored Wire
Packaging Options
- Spools: Heavy-duty steel spools, 1000-1400 kg per spool.
- Coils: Ribbon-wound coils for pay-off from top.
- Protection: Hermetic wrapping with moisture barrier + desiccant.
- Custom Spools: Dimensions adapted to customer uncoilers.
Logistics Information
| Parameter | Details |
|---|---|
| Minimum Order Quantity | 8 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 – Pure Calcium Cored Wire
What is the advantage of pure calcium over SiCa or CaFe wire?
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Pure calcium offers maximum calcium activity with no diluents, allowing lower addition rates and less impurity input. Ideal when silicon or iron addition is not desired.
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.
How should pure calcium wire be stored?
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Due to calcium's reactivity, store in cool, dry conditions (<40% humidity) and use within 3 months of delivery. Our packaging includes moisture protection.
Can pure calcium wire be used for trim additions in the tundish?
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Yes, with appropriate feeding equipment. However, ladle injection is more common for recovery and safety. We can advise based on your setup.
Do you provide analysis certificates?
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Yes, each batch is supplied with a certificate of analysis for core metal and wire dimensions.
What safety measures are needed when handling pure calcium wire?
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Calcium reacts with moisture. Keep away from water, store in sealed packaging, and use dry feeding equipment. MSDS available upon request.
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
Different Coredwires Comparison
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