Mill Scale

Description

1. Product Overview

Mill Scale is a dense iron oxide by-product generated during the hot rolling and forging of steel. Composed primarily of iron oxides (FeO, Fe₂O₃, Fe₃O₄), it serves as a high-grade secondary raw material for steel production, sintering, pelletizing, and cement manufacturing. With its high iron content and excellent metallurgical compatibility, Mill Scale provides a cost-efficient alternative to primary iron ore fines. In a market driven by raw material optimization and cost control, Mill Scale represents a strategically important feedstock for enhancing furnace productivity and maximizing iron unit recovery.

2. Key Specifications & Technical Characteristics

• Chemical Composition:
  • Total Iron (Fe): Typically 68%–72%
  • Iron Oxides (FeO / Fe₂O₃ / Fe₃O₄): Primary components
  • Silicon Dioxide (SiO₂): Typically ≤1.5%–3%
  • Trace elements: Manganese (Mn), Phosphorus (P), Sulfur (S), and other minor constituents (as per assay report)
• Purity / Grade:
  • Industrial-grade mill scale
  • Classified based on iron content and impurity thresholds
• Physical Characteristics:
  • Form: Flaky, granular, or powdery scale
  • Color: Bluish-black to dark grey
  • Particle size: Variable (fine powder to small flakes)
  • Bulk density: High-density iron oxide material
  • Moisture content: Controlled and minimized
• Packaging Options:
  • 1 MT jumbo bags (FIBC)
  • Bulk loose loading
  • Customized packaging upon request
• Shelf Life:
  • Chemically stable under dry storage conditions
  • Recommended storage: Covered, moisture-controlled environment to prevent oxidation progression

3. Core Industrial Applications

Primary Industries:

• Integrated steel plants
• Sintering and pelletizing facilities
• Cement manufacturing
• Foundry and metallurgical operations

Operational Use Cases:

• Iron-bearing feedstock in sinter plant blending
• Raw material input for pellet production
• Charge material in electric arc furnace (EAF) operations
• Additive in cement clinker manufacturing

Performance & Commercial Advantages:

• High iron content improves furnace efficiency and metal yield
• Fine particle structure enhances sintering reactivity
• Cost-effective alternative to iron ore fines in blended charge mix
• Compatible with existing steelmaking infrastructure
• Supports efficient iron resource utilization

4. Competitive Advantages

• Quality Consistency: Controlled sourcing with batch-wise chemical analysis ensuring predictable iron content.
• Supply Reliability: Steady bulk availability aligned with continuous steel production demand.
• Logistics Capability: Bulk and containerized shipment options with full export documentation support.
• Price Competitiveness: Iron-content-based pricing model optimizing cost per recoverable iron unit.
• Sustainability: Industrial by-product reutilization reducing dependence on primary mining and supporting circular economy initiatives.
• Technical Support: Detailed assay reports, quality certifications, and technical documentation available upon request.

Mill Scale is positioned as a strategic sourcing solution for industrial buyers seeking cost efficiency, operational performance, and secure iron unit supply.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT
• Loading Capacity:
  • 20’ Container: Approx. 20–22 MT
  • 40’ Container: Approx. 26–28 MT (subject to packaging configuration)