Chromite sand used to fill the steel outlet

Chromite Sand Used to Fill the Steel Outlet – High-Performance Refractory Solution

Introduction

Chromite sand is a critical material in the steelmaking industry, particularly for filling steel outlets (tapholes and runners) due to its exceptional thermal stability, high melting point, and resistance to metal penetration. With key grain size distributions such as AFS 40-45, AFS 45-50, and AFS 45-55, chromite sand ensures optimal flow control, reduced erosion, and extended furnace life. This makes it an indispensable choice for steel plants aiming to enhance efficiency and reduce downtime.

Key Properties & Advantages

1. Superior Heat Resistance

Chromite sand has an extremely high melting point (~2,150°C), making it ideal for steel outlet applications where extreme temperatures and thermal shock resistance are required.

2. Excellent Erosion & Slag Resistance

Its dense structure and chemical inertness prevent slag and molten metal penetration, ensuring longer-lasting taphole and runner performance.

3. Optimal Grain Size for Steel Outlets

Our chromite sand is available in carefully controlled AFS (American Foundry Society) grain sizes:

• AFS 40-45: Medium-coarse grain for balanced flow control and durability.

• AFS 45-50: Ideal for standard steel outlet filling with excellent compaction.

• AFS 45-55: Finer grain for enhanced sealing and reduced leakage in critical applications.

4. Low Thermal Expansion

Minimizes cracking and deformation under rapid temperature changes, ensuring stable performance in continuous casting and tapping operations.

5. High Density & Mechanical Strength

Provides superior resistance to metal冲刷 (washout), reducing maintenance frequency and improving operational efficiency.

Applications in Steelmaking

Chromite sand is primarily used for:

• Taphole filling – Ensures smooth steel flow and prevents premature wear.

• Runner and ladle lining – Protects against erosion and thermal stress.

• Slag conditioning – Improves slag control in steel refining.

• Refractory patching – Repairs damaged furnace linings effectively.

Why Choose Our Chromite Sand?

✅ Consistent Quality – Strictly graded to AFS standards for reliable performance.
✅ Customizable Grain Sizes – AFS 40-45, 45-50, and 45-55 available for different steelmaking needs.
✅ Cost-Effective – Reduces refractory wear and extends furnace campaign life.
✅ Global Supply – Timely delivery to steel plants worldwide.

Order Now!

Upgrade your steel outlet maintenance with high-grade chromite sand. Contact us today for bulk orders and technical support tailored to your steel production requirements.

Chromite Sand – The Ultimate Solution for Durable and Efficient Steel Outlet Filling!