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Non-Ferrous Aluminum
Aluminum Extrusions
Grade: Toto/TutuHigh Tier
Clean aluminum extrusions, window frames, door frames
Market Price EstimateUpdated Daily
$2,250/ MT
+125 (5.9%)vs yesterday
Verified specifications & market data
Chemical Composition
Elemental breakdown by percentage weight.
Standard composition limits
Values represent maximum allowed percentage unless otherwise noted.
Physical Properties
Material form, density, and contamination specifications.
Premium post-industrial aluminum scrap; architectural extrusion profiles from building demolition and manufacturing trim; clean formed material; established construction recycling; high-value secondary source
Acceptable Inclusions
- Light surface oxidation
- Residual paint/powder coating <2%
- Anodize coating <1%
- Light dirt or debris
- Magnesium 0.6-1.2% (alloy component)
- Silicon 0.4-0.8% (alloy component)
- Iron <0.5% (minimal ferrous)
- Sealant/gasket residue (minimal)
Prohibited Materials
- Aluminum <95% (purity specification)
- Heavy paint/coating >2%
- Ferrous extrusions or steel mixing
- Stainless steel contamination
- PVC or composite materials attached
- Glass or glazing material mixed in
- Vinyl weather stripping (excessive)
- Lead-based paint (environmental hazard)
- Unknown aluminum alloy (composition uncertain)
- PCB or electronic components
- Hazardous material contamination
Quality Assurance
Testing protocols, sampling methods, and acceptance criteria.
Sampling Protocol
frequencyRandom stratified sampling; ensure diverse extrusion types/coating states represented
maximumQuantity100-150 samples per shipment
minimumQuantity0.5-1 tonne or 40-60 extrusion profile samples
percentage8-12% of lot
stratificationSample across profile types if mixed in single lot; coating variation represented
Acceptance Limits
all Criteria Must PassMaterial must be aluminum extrusions; 6000-series alloy confirmed; paint/coating within tolerance; pure aluminum profile verified
aluminum Alloy TypeConfirmed 6000-series architectural extrusion alloy
aluminum ContentAl ≥95%
composite Limit/glass <0.5% or absent
iron LimitFe <0.5%
lead LimitPb absent
magnesium RangeMg 0.6-1.2%
material IdentityConfirmed aluminum architectural extrusions
paint Coating LimitPaint <2%, anodize <1%
silicon RangeSi 0.4-0.8%
Weight Tolerance
measurementVerified by certified scale; weight certificate required for lots >2 tonnes
variance±4% from purchase order weight
Required Test Methods
Visual Inspection
Purpose
- Confirm aluminum extrusions (not ferrous, not composite)
- assess paint/coating condition
- detect contamination
Acceptance Criteria
- Aluminum profiles apparent
- no ferrous/stainless contamination
- paint/coating manageable
- no glass/composite materials mixed in
Procedure
- 100% visual of all samples
- verify extrusion rigid profiles
- assess coating severity
- confirm no wrong materials
- identify extrusion type (window, door, structural)
Magnetic Test
Purpose
- Exclude ferrous extrusions or steel contamination
- verify non-magnetic aluminum character
Acceptance Criteria
- Non-magnetic (aluminum expected)
- any magnetism flags ferrous contamination
Procedure
- Magnet test on sample profiles
- ferrous materials attract
- contamination immediately apparent
- any strong response triggers investigation
6000-Series Alloy Verification
CRITICAL
Purpose
- Confirm 6000-series (Al-Mg-Si) architectural alloy
- verify Mg 0.6-1.2%, Si 0.4-0.8%
- assess compositional consistency
Acceptance Criteria
- Al ≥95%, Mg 0.6-1.2%, Si 0.4-0.8% confirmed
- 6000-series extrusion alloy verified
Procedure
- XRF analysis with alloy library
- confirm 6000-series profile
- distinguish from 3000, 5000, 7000 series alloys
- architectural profile confirmed
Paint/Coating & Lead Assessment
Purpose
- Evaluate residual paint and anodize
- assess lead-based paint presence (hazmat)
- determine removal/stripping requirements
Acceptance Criteria
- Paint <2%, anodize <1%
- NO lead detected
- coating manageable for recycling
Procedure
- Visual inspection of sample profiles
- assess coating thickness
- XRF screening for lead (if pre-1978 building risk)
- determine cleaning/stripping needs
PVC/Composite Material Check
Purpose
- Exclude PVC weather stripping, vinyl gaskets, glass glazing, or non-aluminum materials attached to frames
Acceptance Criteria
- Pure aluminum profiles
- no PVC/composite/glass detected (or <0.5%)
Procedure
- Visual inspection
- physical test (attempt separation of any attached non-aluminum)
- confirm pure extrusion profiles
Elemental Analysis - ICP-AES or XRF
Purpose
- Verify Al ≥95%, confirm 6000-series composition, assess contamination (Fe, Cu, Pb, other elements)
Acceptance Criteria
- Al 95-99.5%, Mg 0.6-1.2%, Si 0.4-0.8%, Fe <0.5%, Pb absent, all others combined <3%