Silicon Calcium 60-32 – Ultra-High Calcium Grade for Advanced Steel Refining (Si≥60% / Ca≥32%)
Premium calcium silicon alloy with minimum 60% silicon and 32% calcium. Exceptional calcium content for superior inclusion modification and desulfurization.
| Main Composition | Si ≥60.0%, Ca ≥32.0%, Fe balance, Al ≤1.5%, C ≤0.6% (typical impurities) |
| Form | Lumps (10-50mm), Granules (1-3mm, 3-15mm), Powder (0-2mm), Custom sizes, Cored wire (Ø13mm) |
| Application | Steelmaking (deoxidizer, desulfurizer, inclusion modification), nodulizer in ductile iron, calcium treatment |
| Standard | GB/T 2272-2020, ASTM A495, ISO 5445 |
Silicon Calcium 60-32 – Product Overview
Silicon Calcium 60-32 is our highest-calcium grade in the standard SiCa range, with minimum 32% calcium and 60% silicon. This ultra-high calcium content ensures maximum calcium recovery for the most demanding inclusion engineering and desulfurization applications. Produced under strict quality control with Al ≤1.5% and C ≤0.6%.
Product Core Advantages
- Maximum Calcium: Ca≥32% provides exceptional inclusion modification efficiency.
- High Silicon: Si≥60% ensures good alloy density and deoxidation.
- Ultra-Low Impurities: Al ≤1.5%, C ≤0.6% guarantee clean steel performance.
- Versatile Forms: Available in lumps, granules, powder, and cored wire.
- Consistent Quality: ISO 17025 tested for batch-to-batch reliability.
Typical Application Areas
- Critical Steel Grades: Bearing steels, tire cord, spring steels requiring precise inclusion control.
- Deep Desulfurization: Achieve S levels below 0.001%.
- Ductile Iron: Premium magnesium-free nodulizer for heavy-section castings.
- Cored Wire: Ultimate choice for high-efficiency calcium treatment.
For specific application guidance, contact our technical team for personalized recommendations.
Technical Specifications – Silicon Calcium Alloys
Our Silicon Calcium 60-32 meets international standards. Below is the chemical composition compared with common industrial grades.
Chemical Composition (Typical Values, % by weight)
| Grade / Designation | Si (%) | Ca (%) | Fe (%) | Al (%) | C (%) |
|---|---|---|---|---|---|
| SiCa 60-32 | ≥60.0 | ≥32.0 | Balance | ≤1.5 | ≤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 60-30 | ≥60.0 | ≥30.0 | Balance | ≤1.0 | ≤0.6 |
Physical Properties
| Property | Value | Unit |
|---|---|---|
| Melting Range | ~1200-1300 | °C |
| Density (at 20°C) | ~2.5-2.8 | g/cm³ |
| Appearance | Silvery-gray metallic lumps / granules | - |
| Bulk Density (lumps) | 1.8-2.2 | g/cm³ |
Available Sizes & Forms
- Lumps: 10-50mm (standard), 10-80mm, 30-100mm, custom sizes available
- Granules: 1-3mm, 3-15mm
- Powder: 0-2mm (standard), 0-3mm,0.2-2mm,0-0.2mm
- Cored Wire: Ø13mm (steel sheath, SiCa powder filling), custom core weight
- Custom Sizes: Available upon request
Application Guidelines – Silicon Calcium 60-32
Steelmaking (Calcium Treatment)
Added via cored wire for ultra-precise inclusion modification. The high calcium content allows lower feed rates while achieving superior inclusion engineering. Typical addition rates: 0.1-1.0 kg/ton steel.
Ductile Iron Nodulizer
Premium magnesium-free nodulizer for the most demanding ductile iron specifications.
Deep Desulfurization
Achieve sulfur levels below 0.001% in secondary metallurgy.
Packaging & Logistics – Silicon Calcium 60-32
Packaging Options
- 1‑ton Jumbo Bags: Standard for lumps/granules.
- 25kg / 50kg Bags: For smaller orders or foundries.
- Cored Wire Spools: 1000-2000kg spools, moisture-proof wrapped.
- Custom Packaging: Moisture-proof liners, wooden boxes, small drums.
Logistics Information
| Parameter | Details |
|---|---|
| Minimum Order Quantity | 20 metric tons (lumps/granules); 10 tons for cored wire (trial orders negotiable) |
| Lead Time | 15-25 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 60-32
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 is the advantage of 60-32 over 60-30?
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The extra calcium (≥32% vs ≥30%) provides even higher calcium recovery and efficiency, allowing lower addition rates for the most demanding inclusion control standards.
Is SiCa 60-32 suitable for cored wire?
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Absolutely, it is the premium choice for cored wire applications requiring maximum calcium yield.
What sizes are best for ladle additions?
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Lumps 10-50mm are typical; granules 1-3mm for continuous feeding.
Do you provide a certificate of analysis?
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Yes, every shipment includes a COA from our accredited lab.
What is your production capacity for SiCa 60-32?
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Annual capacity for all SiCa grades exceeds 30,000 metric tons, with flexible production for high-calcium grades.
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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