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Aluminum Extrusions
Clean aluminum extrusions, window frames, door frames
Certification Requirements
Required certifications, standards compliance, and verification protocols.
Extrusion collection, sorting, quality control, preparation for smelting
Supplier must maintain active ISO 9001 certification throughout contract term
- Aluminum content: ≥95% confirmed (extrusion specification)
- Alloy type: 6000-series verified (Al-Mg-Si architectural standard)
- Magnesium content: 0.6-1.2% documented (6000-series requirement)
- Silicon content: 0.4-0.8% documented (6000-series requirement)
- Iron content: <0.5% confirmed (ferrous contamination control)
- Copper content: <0.3% confirmed (trace acceptable)
- Paint/powder coating: <2% documented (residual acceptable)
- Anodize coating: <1% documented (common on architectural profiles)
- Lead-based paint: ABSENT confirmed (hazmat check)
- PVC/composite materials: ABSENT (or <0.5%) confirmed
- No glass or non-aluminum mixed materials detected
- Extrusion architectural profile verified
- Complete Elemental Profile Confirming Aluminum Extrusion Composition
- 6000-Series Alloy Verification Critical
MUST state:
- Aluminum Extrusions confirmed as 6000-series architectural alloy (Al-Mg-Si)
- extrusion form verified
- smelter processing compatible
MUST state:
- Aluminum Extrusions
- ISRI Toto/Tutu Grade
- ≥95% Al
- 6000-series architectural alloy verified
- clean extrusion profiles confirmed
- post-industrial quality verified
- Paint/Coating Residue Documented
- Lead-Based Paint Hazmat Screening Completed
- Pvc/Composite Assessment
- Extrusion Sources Documented
- Architectural Profile Type Identified
- Aluminum Extrusion Commodity
- Industrial Material
Rejection Criteria
Conditions and thresholds that trigger immediate rejection or downgrading.
Al <95%
Full rejection or reclassification
- Material Purity Below Specification
- Mixed Metals Contamination
- Extrusion Specification Violated
XRF spectrometry (authoritative)
CRITICAL - SPECIFICATION VIOLATION
- Full Lot Rejection Or Downgrading To Lower Aluminum Grade
- Significant Value Loss
Alloy not 6000-series; composition outside architectural specification
Reclassification or rejection
- Architectural Extrusion Specification Requires 6000-Series Alloy (Al-Mg-Si) Compatibility
- Non-Architectural Alloy Incompatible With Smelter Processing Expectations
XRF spectrometry + alloy library comparison
CRITICAL - ALLOY SPECIFICATION
- Material Reclassified To Alternative Commodity Grade Or Rejected
- Smelter Processing Adjustment Required
Magnetic attraction detected OR Fe >0.5% OR ferrous extrusions mixed in
Full rejection
- Ferrous Mixing Violates Aluminum Specification
- Incompatible With Aluminum Smelting
Visual inspection + magnetic test + XRF spectrometry
CRITICAL - CONTAMINATION
- Full Or Partial Lot Rejection
- Material Segregated As Contaminated Scrap
Lead (Pb) detected in XRF analysis; historical pre-1978 building risk
- Full Rejection
- Hazmat Protocol If Required
- Environmental/Health Hazard
- Regulatory Compliance Violation
- Worker Safety Risk
XRF spectrometry (lead detection)
CRITICAL - HAZMAT/REGULATORY
- Entire Lot Rejected
- Potential Hazmat Disposal Protocols
- Supplier Liability For Contaminated Material
Paint >2% OR anodize >1% OR heavy coating layer visible
RECLASSIFICATION to painted extrusion grade (-£50-100/MT penalty) OR cleaning/stripping requirement at supplier cost
- Coating Excess Requires Significant Processing
- Reduces Material Value
- Cost Increases
Visual inspection + XRF surface analysis
MODERATE - PROCESSING COST
- Material Reclassified To Lower Grade With Price Adjustment Or Supplier Must Perform/Pay For Stripping
- -£50-100/Mt Penalty Typical
PVC, glass, vinyl gaskets, or non-aluminum materials detected OR >1% non-aluminum by weight
Full rejection or manual separation required (at supplier cost)
- Composite Mixing Violates Pure Aluminum Specification
- Incompatible With Smelting Process
Visual inspection + XRF analysis + physical assessment
CRITICAL - CONTAMINATION
- Full Lot Rejection Or Material Sent For Manual Separation (Costly)
- Significant Value Loss
>0.5% detected
Full rejection
- Non-Aluminum Contamination Violates Specification
- Incompatible With Smelting
XRF spectrometry
CRITICAL - CONTAMINATION
- Entire Lot Rejected
- Material Segregated As Mixed Metal Scrap
Alloy composition cannot be determined; outside known specifications
Full rejection
- Material Identity Uncertain
- Must Be Confirmed 6000-Series Architectural Extrusion Alloy
XRF analysis with alloy library comparison
CRITICAL - IDENTIFICATION FAILURE
- Material Rejected
- Requires Extensive Testing For Re-Identification (Cost Borne By Supplier)