Black Silicon Carbide Grit 88% For Steelmaking
Replaces 30-50% ferrosilicon, cuts steelmaking cost by $1.8-$3.2/ton, improves steel cleanliness.
Uniform particle size, low moisture, full COA provided, factory direct supply.
Monthly capacity 3,000+ MT, 7-15 days lead time, 1 MT trial order available.
Black Silicon Carbide Grit 88% for Steelmaking Deoxidation
Black silicon carbide grit 88% is a high-performance metallurgical deoxidizer designed for EAF & LF steelmaking, foundry casting, and refractory applications.With strictly controlled chemical composition and consistent particle size, it helps steel mills improve steel quality while lowering overall production costs.
Black Silicon Carbide Grit 88% Typical Specifications
Chemical Composition
| Item | Standard | Actual Control |
|---|---|---|
| SiC | ≥88.0% | 88.2% – 89.5% |
| Free Carbon | ≤4.0% | 2.8% – 3.6% |
| Fe₂O₃ | ≤1.5% | 0.9% – 1.3% |
| Sulfur (S) | ≤0.05% | 0.028% – 0.042% |
| Phosphorus (P) | ≤0.04% | 0.021% – 0.035% |
| Moisture | ≤0.5% | 0.15% – 0.35% |
Physical & Particle Properties
- Mohs Hardness: 9.5
- Melting Point: ~2730℃
- Bulk Density: 1.65 – 1.80 g/cm³
- True Density: 3.20 g/cm³
- Appearance: Black crystalline granules
- Common Sizes: 0–10mm, 1–5mm, 5–20mm, 10–50mm
- Custom sizes available for feeding systems
Black Silicon Carbide Grit 88% Performance & Value for Steel Mills
Deoxidation Performance
- Strong deoxidation capacity: 1kg SiC 88% ≈ 1.2–1.5kg FeSi75
- Reduces dissolved oxygen in molten steel to below 30ppm
- Shortens refining time by 8–12 minutes per heat
- Improves steel cleanliness and reduces inclusions by 30–50%
Cost Reduction Effect (Real Customer Data)
- Replaces 30–50% of ferrosilicon
- Reduces alloy cost: $1.8 – $3.2 per ton of steel
- Reduces electrode consumption by 2–4%
- Lowers scrap rate in casting billets
Quality Stability
- Batch-to-batch fluctuation: ±0.5% in SiC content
- Consistent particle distribution for smooth feeding
- Low moisture to avoid splashing during tapping
Recommended Usage in Steelmaking - What is Black Silicon Carbide Grit 88% used for?
Dosage
- EAF steelmaking: 3–6 kg per ton steel
- LF refining: 2–4 kg per ton steel
- Foundry inoculation: 0.3–0.8% of molten iron
Feeding Method
- Add to ladle bottom before tapping
- Inject with molten steel stream for uniform mixing
- Avoid direct contact with slag before full melting
Black Silicon Carbide Grit 88% Packing, Loading & Supply Capacity
Packing
- 1 MT jumbo bag with PE inner liner
- 25kg small bags (palletized)
- Moisture-proof, seaworthy packaging
Container Loading
- 20GP: 20–22 MT
- 40GP: 26–28 MT
Supply Ability
- Monthly capacity: 3,000+ MT
- Spot inventory: 800+ MT
- Lead time: 7–15 days for regular orders
- Supports annual contracts for steel mills
Tell us your furnace type, monthly usage, and target particle size,and we will provide a free quote, sample, and cost-saving comparison within 12 hours.
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Why Choose our Black Silicon Carbide Grit 88%
- Stable SiC ≥88% with strict impurity control
- Real cost-saving data verified by steel mills
- Full COA provided for every batch
- Accept SGS, Intertek, BV inspection
- Flexible MOQ: 1 MT trial order available
- Strong supply capacity for long-term partners
FAQ
Q: How much ferrosilicon can SiC 88% replace?
A: It can replace 30–50% of ferrosilicon in carbon steel production, with better deoxidation effect and lower cost.
Q: Are S and P content strictly controlled?
A: Yes. Actual S ≤0.042%, P ≤0.035%, which avoids increasing harmful elements in finished steel.
Q: Do you provide test reports?
A: Yes. Each batch comes with a complete COA including SiC, C, Fe₂O₃, S, P, moisture and particle size.
Q: Can you customize particle size?
A: Yes. We produce sizes based on your furnace type and feeding system.
Q: What is your delivery time?
A: Regular orders ship in 7–15 days. Bulk and contract orders can be scheduled in advance.
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