Silicon Calcium Powder – High-Purity SiCa for Cored Wire & Injection Metallurgy (Si≥60% / Ca≥30%)
Fine silicon calcium powder with controlled particle size distribution. Ideal for cored wire production, powder injection, and foundry applications.
| Main Composition | Si ≥60.0%, Ca ≥30.0%, Fe balance, Al ≤1.5%, C ≤0.6% (typical impurities) |
| Form | Powder (0-2mm, 0-3mm,0.2-2mm,0-0.2mm), custom particle sizes available |
| Application | Cored wire filling, injection metallurgy, powder metallurgy, foundry inoculant |
| Standard | GB/T 2272-2020, ASTM A495, ISO 5445 |
Silicon Calcium Powder – Product Overview
Our Silicon Calcium Powder is produced by crushing and sieving high-grade SiCa alloy (typically 60-30 or 60-32) to precise particle sizes. It is the preferred raw material for cored wire manufacturers and for direct injection metallurgy. The powder offers consistent chemistry, controlled fines, and excellent flowability.
Product Core Advantages
- Controlled Particle Size: Available in 0-2mm, 0-3mm,0.2-2mm,0-0.2mm, or custom cuts for optimal performance in wire filling or injection.
- High Purity: Si≥60%, Ca≥30%, with low Al and C for clean metallurgical reactions.
- Consistent Quality: Every batch tested for chemistry and particle size distribution.
- Versatile Application: Suitable for cored wire, powder injection, briquetting, and foundry use.
- Stable Supply: Produced from our own alloy, ensuring consistent raw material quality.
Typical Application Areas
- Cored Wire Production: Filling powder for steel- or aluminum-clad wires used in calcium treatment.
- Injection Metallurgy: Direct pneumatic injection into ladles for desulfurization and inclusion control.
- Foundry Inoculant: Added to molds or ladles as a fine powder for late-stage inoculation.
- Powder Metallurgy: Component in master alloy blends or briquettes.
For specific particle size requirements, contact our technical team for custom solutions.
Technical Specifications – Silicon Calcium Powder
Our powder is produced from high-grade SiCa alloy. Below is the typical chemical composition and available size ranges.
Chemical Composition (Typical Values, % by weight)
| Grade / Designation | Si (%) | Ca (%) | Fe (%) | Al (%) | C (%) |
|---|---|---|---|---|---|
| SiCa Powder (from 60-30) | ≥60.0 | ≥30.0 | Balance | ≤1.0 | ≤0.6 |
| SiCa 50-20 | ≥50.0 | ≥20.0 | Balance | ≤1.5 | ≤1.0 |
| SiCa 55-28 | ≥55.0 | ≥28.0 | Balance | ≤1.5 | ≤1.0 |
| SiCa 58-30 | ≥58.0 | ≥30.0 | Balance | ≤1.5 | ≤0.9 |
| SiCa 59-30 | ≥59.0 | ≥30.0 | Balance | ≤1.5 | ≤0.8 |
| SiCa 60-32 | ≥60.0 | ≥32.0 | Balance | ≤1.5 | ≤0.6 |
Physical Properties & Particle Sizes
| Property | Value |
|---|---|
| Appearance | Gray metallic powder |
| Typical Size Ranges | 0-2mm, -100 mesh (<150μm), -200 mesh (<75μm) |
| Custom Sizes | 20-80 mesh, 40-100 mesh, etc. upon request |
| Bulk Density | ~1.8-2.2 g/cm³ (varies with size) |
Application Guidelines – Silicon Calcium Powder
Cored Wire Manufacturing
Our powder is ideal as filling material for cored wires (Ø13mm). Consistent particle size ensures uniform filling density and smooth wire forming. Recommended size: -100 mesh or 0-2mm.
Injection Metallurgy
For pneumatic injection into steel ladles, fine powder (-100 mesh) ensures rapid melting and high calcium recovery.
Foundry Inoculation
Used as a ladle or mold inoculant for gray and ductile iron. Fine dispersion ensures efficient nucleation.
Packaging & Logistics – Silicon Calcium Powder
Packaging Options
- 1‑ton Jumbo Bags: With inner moisture-proof liner.
- 25kg / 50kg Bags: Multi-layer paper or plastic woven bags.
- 1kg-5kg Small Bags: For laboratory or pilot trials.
- Big Bags for Cored Wire Producers: Custom filling options.
Logistics Information
| Parameter | Details |
|---|---|
| Minimum Order Quantity | 20 metric tons (less for trial orders, subject to availability) |
| 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 – Silicon Calcium Powder
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.
What particle size is best for cored wire?
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Typically -100 mesh (<150μm) or 0-2mm is used. The exact size depends on wire diameter and forming process; we can customize.
Do you control the powder's flowability?
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Yes, we ensure low moisture and appropriate particle shape for good flow in wire filling or injection systems.
Can you supply powder from 60-32 alloy?
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Yes, we can produce powder from any of our SiCa grades (55-28, 58-30, 60-30, 60-32) upon request.
Do you provide a certificate of analysis?
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Absolutely. Each batch comes with a COA showing chemistry and particle size distribution.
What is the minimum order quantity for powder?
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Typically 20 tons, but smaller trial orders (1-5 tons) can be arranged for qualification.
Why Choose Our Silicon Calcium
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 Grades of CaSi Comparison
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