Industrial Minerals
Limestone
Overview
Steel Grade Limestone is a premium-quality flux used in iron and steel manufacturing. With high calcium carbonate content and low silica and magnesium impurities, it efficiently removes impurities during steelmaking and improves slag formation.
Applications
- Steel Making
- Blast Furnace
- Basic Oxygen Furnace (BOF)
- Electric Arc Furnace (EAF)
- Flux Material
- Iron Making
- Metallurgical Industry
- Foundry Industry
Chemical Composition
| Grade | CaCO₃ | CaO | MgO | SiO₂ | Size |
|---|---|---|---|---|---|
| LS-90 | 90% Min | 50% Min | 3% Max | 5% Max | 10–40 mm |
| LS-92 | 92% Min | 51% Min | 2.5% Max | 4% Max | 20–50 mm |
| LS-95 | 95% Min | 53% Min | 2% Max | 3% Max | 30–80 mm |
Physical Properties
| Property | Value |
|---|---|
| Appearance | WhiteGrey |
| Shape | Lumps |
| Color | WhiteGrey |
| Density | 2.6–2.8 g/cm³ |
| SpecificGravity | 2.7 |
| Hardness | 3 Mohs |
| Packing | Loose Bulk / 1 MT Jumbo Bag |
| Storage | StoreDryCoveredArea |
Frequently Asked Questions
Steel Grade Limestone is a high-purity limestone used as a flux in iron and steel production. It removes impurities such as silica, sulfur, and phosphorus while improving slag formation and furnace efficiency.