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Non-Ferrous Aluminum
Aluminum Turnings
Grade: Telic/TeensLow-Medium Tier
Aluminum borings and turnings from machining, mixed or segregated
Market Price EstimateUpdated Daily
$1,750/ MT
+65 (3.9%)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.
Post-industrial aluminum machining waste; high-volume industrial scrap; cutting fluid and coolant contaminated; typically requires washing/pressing; distributed small-scale supplier base; established recycling infrastructure
Acceptable Inclusions
- Oil residue <10% (cutting fluid; machining standard)
- Coolant residue <5% (water-soluble or oil-based)
- Water content <5% (residual from washing)
- Aluminum 85-99% (machining alloy typical)
- Ferrous contamination <2% (tool wear minimal)
- Copper <5% (alloy component)
- Silicon <3% (alloy component)
- Mixed aluminum alloys (acceptable when segregated)
Prohibited Materials
- Segregated by customer (must match order)
- Heavy tool contamination (>2% ferrous)
- Stainless steel chips mixed in
- Copper chips mixed in (wrong commodity)
- Plastic coolant residue (non-recoverable)
- Hydraulic fluid (hazmat concern)
- PCB or electronic contamination
- Unknown material mixing
Quality Assurance
Testing protocols, sampling methods, and acceptance criteria.
Sampling Protocol
frequencyRandom stratified sampling from multiple sections of bulk shipment
maximumQuantity200+ sample portions per shipment
minimumQuantity2-5 tonnes or 30-50 sample portions
percentage15-20% of lot
stratificationSample from top, middle, bottom of loose material to capture oil variation and segregation consistency
Acceptance Limits
all Criteria Must PassMaterial must be aluminum machining waste; oil <10% ; contamination minimal
aluminum ContentAl 85-99%
coolant LimitCoolant <5%
ferrous LimitFe <2%
material IdentityConfirmed aluminum turnings
oil LimitOil residue <10%
segregation MatchMatches customer segregation request
water LimitWater <5%
Weight Tolerance
measurementVerified by certified scale; weight certificate required for lots >2 tonnes
variance±6% from purchase order weight
Required Test Methods
Visual Inspection
Purpose
- Confirm aluminum turnings (not ferrous/copper)
- assess form and apparent oil saturation
Acceptance Criteria
- Aluminum turnings/chips silver-colored (not reddish/copper, not gray/ferrous)
- form consistent with machining waste
Procedure
- 100% visual of all samples
- verify aluminum appearance
- assess chip form
- identify oil saturation visually (dripping/wet vs. damp vs. dry)
Magnetic Test
Purpose
- Exclude ferrous tool debris or steel mixing
- verify predominantly non-ferrous
Acceptance Criteria
- Very weak or non-magnetic (aluminum expected)
- minimal ferrous attraction
Procedure
- Magnet test on samples
- assess tool contamination
- strong magnetism flags excessive tool debris
Oil Content Assessment
CRITICALMANDATORY
Purpose
- verify oil/cutting fluid saturation <10%
- test for every shipment
Acceptance Criteria
- Oil residue <10% by
- acceptable machining waste saturation
Coolant & Water Analysis
Purpose
- Evaluate coolant residue (<5%) and water content (<5%)
- assess drying status
Acceptance Criteria
- Coolant <5%, water <5%
- post-washing/acceptable condition
Segregation Status Verification
Purpose
- If customer specifies segregation: confirm alloy type matches order (6061, 7075, mixed, etc.)
Acceptance Criteria
- Segregation type matches order
- alloy composition verified
Procedure
- Visual alloy identification if possible
- XRF confirmation of alloy type
XRF Spectrometry
Purpose
- Verify Al 85-99%
- assess alloy composition (Si, Cu, other)
- confirm no exotic contamination
Acceptance Criteria
- Al 85-99%, acceptable alloy elements within tolerance
- segregation confirmed if applicable
Ferrous Tool Contamination Check
Purpose
- Assess tool wear/debris
- verify ferrous <2%
Acceptance Criteria
- Ferrous <2%
- tool debris minimal/absent
Procedure
- Magnetic separation of sample
- weight ferrous content
- visual inspection