Wanzhu Mining — Calcined Bauxite Introduction

Company Profile

Product Grades

1. 88 grade calcined bauxite: Al₂O₃ ≥88%, refractoriness above 1750℃, high strength for high-end refractory and precision casting

2. 75/80 grade calcined bauxite: Al₂O₃ 75%–80%, cost-effective universal grade

3. 60/65 grade calcined bauxite: Al₂O₃ 60%–65%, for lightweight refractory and ordinary casting auxiliary materials

Core Performance Advantages

1. High refractoriness, stable under long-term high temperature of molten steel and iron

2. Excellent thermal shock resistance, not easy to crack or peel under rapid cooling and heating

3. Strong slag resistance, low erosion from molten metal and acid-base slag

4. High mechanical strength, wear-resistant against high-speed flushing

5. Low thermal expansion coefficient, effectively prevents casting defects such as crack and sand sticking

6. Low iron and harmful impurities, will not pollute molten alloy

7. Good compatibility with high-alumina cement, clay and various binders

Regular Specifications

• Aggregate grains: 3–5mm, 1–3mm, 0–1mm, 0–0.5mm

• Fine powder: 200 mesh, 325 mesh, 400 mesh

• Package: 25kg woven bags or ton bags, full truck delivery

Application Fields

1. Refractory industry

   Raw material for high-alumina bricks, castables, ramming mixes for intermediate frequency furnaces, ladles, cement kilns and boiler linings.

2. Foundry industry

   Bauxite sand for steel casting to avoid sand sticking; fine powder for anti-sticking casting coating; raw material for riser insulation sleeves.

3. Other uses: Wear-resistant aggregate, anti-corrosion lining, ceramic raw material

Supply Strengths

1. Self-owned mineral resources, direct factory sales with stable prices

2. Integrated calcining and processing production line, large capacity for long bulk orders

3. Test certificates provided per batch, third-party inspection supported

4. Professional technical team helps optimize customer mixing formulas

5. Reliable nationwide logistics with on-time delivery