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Non-Ferrous Brass
New Brass Clippings
Grade: LabelHigh Tier
Clean new brass clippings and stamping scrap
Market Price EstimateUpdated Daily
$2,950/ MT
+155 (5.5%)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 new/virgin brass clippings from stamping and forming operations; direct factory scrap (never previously melted); clean uncontaminated condition; primary mill feedstock; high purity specification
Acceptable Inclusions
- Light surface oxidation (virgin material norm)
- Minimal mineral oil coating (manufacturing protection)
- Light dust or debris on surface (removable)
- Manufacturing lubricant residue <0.5%
Prohibited Materials
- Copper content <55% (must be brass range)
- Zinc content >40% (composition imbalance)
- Lead >1.0% (strict premium specification)
- Iron >0.3% (ferrous contamination; new material should be non-ferrous)
- Stainless steel or aluminum contamination
- Tin >0.2% (bronze mixing prohibited)
- Heavy oxidation/tarnish >2% surface area coverage
- Oil saturation (heavy machine oil pools)
- Hazardous material contamination
- Mixed metal uncertainty (composition unclear)
Quality Assurance
Testing protocols, sampling methods, and acceptance criteria.
Sampling Protocol
frequencyRandom stratified sampling from multiple shipment positions
maximumQuantity100-120 samples per shipment
minimumQuantity1-2 tonnes or 50-100 individual clipping samples
percentage5-10% of lot
stratificationSample across different clipping sizes/thicknesses; diverse if multi-source lot
Acceptance Limits
all Criteria Must PassMaterial must be new brass clippings; virgin status confirmed; premium purity specification met; specification absolute
cleanlinessPristine clean condition; no heavy contamination
copper ContentCu 55-70%
iron LimitFe <0.3%
lead LimitPb ≤1.0%
material IdentityConfirmed /
nickel LimitNi <0.1%
oil LimitOil residue <0.5%
oxidation LimitOxidation <1.0%
tin LimitSn <0.2%
zinc ContentZn 25-40%
Weight Tolerance
measurementVerified by certified scale; weight certificate required for lots >2 tonnes
variance±2% from purchase order weight
Required Test Methods
Visual Inspection
Purpose
- Confirm new/virgin brass clippings
- verify cleanliness standard
- detect oxidation or contamination
Acceptance Criteria
- Clean brass-colored appearance
- light golden/reddish patina
- NO heavy oxidation
- NO visible contamination
- virgin material character evident
Procedure
- 100% visual scan
- confirm material color/identity consistent with new brass
- assess oxidation level
- identify any discoloration or foreign material
Virgin Material Verification
CRITICAL
Purpose
- confirm NEW/virgin material (never previously melted)
- distinguish from aged/recycled scrap
Acceptance Criteria
- Material appears new
- light oxidation only
- no heavy patina
- virgin material condition clear
Oxidation Assessment
Purpose
- Confirm minimal oxidation (<1.0%)
- verify new/fresh material condition
Acceptance Criteria
- Minimal oxidation visible
- light patina acceptable
- no heavy black oxide
- virgin material appearance confirmed
Procedure
- Visual comparison to reference samples
- oxidation level documented
Magnetic Test
Purpose
- Exclude ferrous contamination
- verify non-magnetic brass character
Acceptance Criteria
- Non-magnetic (new brass expected)
- NO ferrous mixing
- new material should show no attraction
Procedure
- Magnet test on sample clippings
- new brass should be completely non-magnetic
Cleanliness/Oil Assessment
Purpose
- Confirm DRY/clean condition
- verify no machining fluid saturation
Acceptance Criteria
- Material dry and clean
- oil residue <0.5%
- no oily feel or saturation
Surface Contamination Check
Purpose
- Assess cleanliness standard
- confirm pristine condition
Acceptance Criteria
- Minimal surface dust or debris (easily removed)
- NO heavy contamination
- pristine virgin condition
Procedure
- Visual inspection
- gentle cleaning simulation to confirm surface cleanliness
XRF Spectrometry
CRITICAL
Purpose
- Verify Cu 55-70% and Zn 25-40%
- confirm Pb ≤1.0%
- assess all contamination
Acceptance Criteria
- Cu 55-70%, Zn 25-40% (virgin brass spec), Pb ≤1.0% (STRICT), Fe <0.3%, Sn <0.2%
Procedure
- XRF optimal
- non-destructive surface analysis acceptable for clean virgin material
Alloy Type Identification
Purpose
- Confirm brass alloy type
- document specification if sorted by grade
Acceptance Criteria
- Brass alloy confirmed
- type identified if applicable
Procedure
- Visual + composition analysis
- determine if 1000-series, 2000-series, or mixed brass