SiCa Cored Wire – Calcium Silicon Wire for Precision Steel Treatment (Si≥60% / Ca≥30%)
High-quality calcium silicon cored wire for inclusion modification, desulfurization, and calcium treatment in ladle furnaces. Available in Ø9mm, Ø13mm with custom core parameters.
| Core Composition | Si ≥60.0%, Ca ≥30.0%, Fe balance, Al ≤1.0%, C ≤0.5% (typical from 60-30 powder) |
| Wire Specifications | Diameter: Ø13mm ±0.5mm; Sheath: Steel (low carbon); Core weight: 220 g/m (Ø13mm) |
| Application | Calcium treatment in secondary steelmaking, inclusion modification, desulfurization |
| Standard | YB/T 053-2016, ASTM A495 |
SiCa Cored Wire – Product Overview
Our SiCa cored wire consists of a low-carbon steel sheath filled with high-purity silicon calcium powder (typically from 60-30 or 60-32 grade). It is designed for precise addition of calcium into molten steel during secondary metallurgy, enabling efficient inclusion modification, desulfurization, and castability improvement.
Product Core Advantages
- Precise Addition: Wire feeding allows accurate control of calcium amount and recovery.
- High Core Purity: Filled with SiCa powder (Si≥60%, Ca≥30%, low Al/C) for clean steel applications.
- Consistent Core Weight: Strict tolerance on powder filling ensures predictable results.
- Robust Sheath: Steel sheath protects powder during storage and feeding, ensuring deep injection into molten steel.
- Customizable: Available in Ø13mm, with varying core weights and powder grades.
Typical Application Areas
- Inclusion Engineering: Modify alumina inclusions to liquid calcium aluminates in Al-killed steels.
- Desulfurization: Achieve ultra-low sulfur levels (<0.001%) in combination with slag treatment.
- Calcium Treatment: Improve castability and reduce nozzle clogging in continuous casting.
- Alloying: Adjust calcium content in specialty steel grades.
For specific wire specifications, contact our technical team for personalized recommendations.
Technical Specifications – SiCa Cored Wire
Our cored wire is manufactured to international standards. Below are typical specifications and a comparison of core powder grades.
Cored Wire Parameters
| Parameter | Ø13mm Wire |
|---|---|
| Diameter (mm) | 13.0 ±0.5 |
| Sheath Thickness (mm) | 0.35-0.45 |
| Core Weight (g/m) | 220 |
| Total Weight (g/m) | 390 |
| Core Powder Grade | SiCa 60-30, 60-32, 55-28 (specify upon order) |
Core Powder Chemical Composition (Typical from 60-30)
| Grade | Si (%) | Ca (%) | Al (%) | C (%) |
|---|---|---|---|---|
| SiCa 60-30 (core) | ≥60.0 | ≥30.0 | ≤1.5 | ≤0.6 |
| SiCa 50-20 | ≥50.0 | ≥20.0 | ≤1.5 | ≤1.0 |
| SiCa 55-28 | ≥55.0 | ≥28.0 | ≤1.5 | ≤1.0 |
| SiCa 58-30 | ≥58.0 | ≥30.0 | ≤1.5 | ≤0.8 |
| SiCa 59-30 | ≥59.0 | ≥30.0 | ≤1.5 | ≤0.7 |
| SiCa 60-32 | ≥60.0 | ≥32.0 | ≤1.5 | ≤0.6 |
Available Powder Grades for Core
- Standard: SiCa 60-30 (Si≥60%, Ca≥30%)
- High Calcium: SiCa 60-32 (Si≥60%, Ca≥32%)
- Other: SiCa 55-28, 58-30, etc. available upon request
Application Guidelines – SiCa Cored Wire
Inclusion Modification (Calcium Treatment)
Wire is fed into liquid steel (typically after deoxidation) at a rate of 100-400 m/min. Calcium modifies solid Al₂O₃ inclusions into liquid calcium aluminates, preventing nozzle clogging. Recommended addition: 1-5 m wire per ton steel depending on target Ca content.
Desulfurization
Combined with proper slag conditions, SiCa wire can achieve sulfur levels below 0.001%. Feed rate and depth must be optimized for each steel plant.
Feeding Parameters
- Wire Speed: 2-6 m/s (120-360 m/min)
- Injection Depth: 200-400 mm below slag layer
- Argon Stirring: Gentle stirring after wire injection for homogenization
Packaging & Logistics – SiCa Cored Wire
Packaging Options
- Spools: Wound on heavy-duty steel spools, 1000-2000 kg per spool.
- Coils: Ribbon-wound coils (pay-off from top) for continuous feeding.
- Protection: Wrapped with moisture-proof stretch film and steel bands.
- Custom: Spool size can be adapted to customer feeding equipment.
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 – SiCa Cored Wire
What is the typical calcium recovery from SiCa wire?
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Recovery typically ranges from 10-25%, depending on steel temperature, injection depth, and slag conditions. We can help optimize parameters.
What diameter wire should I use for my ladle?
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Ø9mm is common for smaller ladles (≤100t) and tundish injection; Ø13mm for larger ladles (>100t) requiring higher addition rates.
Can you provide wire with different core powder grades?
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Yes, we can customize the core powder to any of our SiCa grades (55-28, 58-30, 60-30, 60-32) based on your requirements.
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.
Do you provide a certificate of analysis for each spool?
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Yes, each batch of wire comes with a COA for the core powder and mechanical properties of the wire.
What is the shelf life of SiCa cored wire?
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When stored in dry conditions (humidity <60%), the wire can be stored for up to 6 months without significant quality loss.
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
HC/MC/LC FeMn Comparison
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