1. Material Type
- Aluminum alloy 6063, also known as Al-Mg-Si alloy
- Primarily used in extruded shapes, such as profiles, frames, and architectural sections.
2. Chemical Composition (Typical for Alloy 6063)
| Element | Percentage (%) |
|---|---|
| Aluminum (Al) | Balance (~97–99%) |
| Magnesium (Mg) | 0.45 – 0.9% |
| Silicon (Si) | 0.2 – 0.6% |
| Iron (Fe) | ≤ 0.35% |
| Copper (Cu) | ≤ 0.1% |
| Manganese (Mn) | ≤ 0.1% |
| Chromium (Cr) | ≤ 0.1% |
| Zinc (Zn) | ≤ 0.1% |
| Titanium (Ti) | ≤ 0.1% |
| Others | ≤ 0.05% each |
3. Physical Characteristics
•Color: Silvery; may be shiny or dull depending on oxidation
•Form:
•Extruded aluminum profiles
•Window/door frames
•Pipes and tubes
•Architectural scrap
•Density: 2.69 g/cm³
•Melting point: ~660°C
•Excellent strength-to-weight ratio
4. Scrap Quality Grades
Common international scrap grades:
➤ Clean 6063 Scrap (Primary Grade)
•Free from:
•Paint
•Powder coating
•Plastic
•Screws, steel, or other attachments
•Bright, clean extrusions
•Purity > 95% aluminum content
➤ Taint/Tabor or Mixed 6063 Scrap
•May include painted or coated profiles
•May have small attachments or light contamination
➤ Painted 6063 Scrap
•Scrap profiles with powder coating or anodized surfaces
5. Typical Accepted Scrap Conditions
•Must be dry, clean, and free from oil/grease
•No insulation, rubber, wood, glass, or dirt
•Maximum contamination: 1–3% (depending on buyer specification)
•Radioactive-free
•No explosive containers
6. Typical Uses
Re-melted to produce:
•Extrusion billets
•Architectural products
•Door/window frames
•Automotive parts
•Heat sinks
•Tubing and pipes
7. Standard Packing
•Baled (400–800 kg per bale)
•Loose loaded
•Compressed briquettes
•Packed in 20ft or 40ft containers
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