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Non-Ferrous Copper
Bare Bright Copper
Grade: Barley/Berry (#1 Copper)Very High Tier
Clean, uncoated copper wire, #1 grade, 99%+ pure, no insulation
Market Price EstimateUpdated Daily
$3,780/ MT
+280 (8%)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 high-purity copper scrap; bare bright classification; direct smelter feedstock for electrolytic refining
Acceptable Inclusions
- Light oxidation/patina (green/blue from age)
- Tight mechanical adherence only
Prohibited Materials
- Insulation (PVC, rubber - any plastic)
- Solder joints or solder coating
- Paint or varnish coating
- Zinc plating or other coatings
- Fusion (bonded material)
- Brass or other copper alloys >1%
- Zinc >0.5% (brass contamination)
- Lead >0.05% (critical contamination)
- Non-ferrous metals >0.1% individual
- Ferrous (steel) attachments must be removed
- Radioactive materials
- PCB or hazardous electronics
- Asbestos materials
Quality Assurance
Testing protocols, sampling methods, and acceptance criteria.
Sampling Protocol
frequencyRandom selection from different sections of load
maximumQuantity100+ samples per large shipment
minimumQuantity2–5 tonnes or 50–100 samples
notesHigh-value material; extensive testing required for purity verification
percentage15–25% of lot
Acceptance Limits
all Criteria Must Passcriteria must be met; purity non-negotiable for premium grade
copper ContentCu ≥99.0%
iron LimitFe <0.1%
lead LimitPb <0.05%
nickel LimitNi <0.1%
oxygen LimitO₂ <0.05%
tin LimitSn <0.1%
visual Contaminantsinsulation, solder, paint, coating
zinc LimitZn <0.5%
Weight Tolerance
variance±2% acceptable from purchase order weight
Required Test Methods
Visual Inspection 100%
Purpose
- Confirm bare bright appearance (no insulation, solder, coating, paint)
Acceptance Criteria
- Pass: Clean bright surface
- no plastic, solder, paint visible
- any insulation=REJECTION
Procedure
- 100% visual inspection
- any coated wire = immediate rejection
XRF Spectrometry
Purpose
- Verify Cu ≥99%, Zn <0.5%, Pb <0.05%, Ni <0.1%, Fe <0.1%
Acceptance Criteria
- Pass: Cu 99–100%, contaminants within strict limits
Acid Test / Density Test
Purpose
- Rapid verification of copper purity (acid test confirms copper without insulation)
Acceptance Criteria
- Pass: Copper reacts correctly
- no plastic residue
Fire Assay
Purpose
- Precise copper/contaminant determination (highest accuracy for premium material)
Acceptance Criteria
- Pass: Cu ≥99.0% confirmed
- Pb <0.05% confirmed
Oxygen Determination / LECO Analysis
Purpose
- Verify oxygen <0.05% (electrical conductivity requirement)
Acceptance Criteria
- Pass: O₂ <0.05%