Copper Cathodes (LME Grade A)

Description

1. Product Overview

This LME Grade A Copper Cathode represents the global benchmark for high-conductivity copper, refined to a minimum 99.99% purity under strict London Metal Exchange standards. It serves as the essential raw material for manufacturing semi-finished copper products (wire rod, tube, sheet) across electrical, construction, and industrial equipment sectors. For enterprise buyers, securing this certified cathode ensures downstream production efficiency, predictable smelter yield, and direct price correlation with LME futures—de-risking both operational quality and commodity exposure.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Cu ≥ 99.99%; Impurities (max ppm): Pb ≤ 5, Sb ≤ 4, As ≤ 5, Bi ≤ 2, Fe ≤ 10, S ≤ 15, total other impurities ≤ 30 ppm

• Grade Standard: LME Grade A (conforms to BS EN 1978:1998 / ASTM B115-10)

• Physical Form: Flat, trapezoidal plates

• Dimensions: 914 mm x 914 mm x 12 mm (typical) or as per LME specification (variation within ±3%)

• Weight per Sheet: 110–125 kg nominal, stacked uniformly for container loading

• Density: 8.96 g/cm³

• Surface: Clean, smooth, free from non-metallic inclusions, burrs, or surface oxidation

• Packaging Options:

  • Palletized strapped steel bundles (1–2 MT per bundle)

  • Shrink-wrapped for moisture protection during sea freight

  • Export-grade fumigated wooden pallets or steel-framed crates

• Shelf Life: Indefinite under dry storage (≤ 30% RH, no corrosive atmosphere)

3. Core Industrial Applications

• Wire & Cable Manufacturing (Primary Industry: Electrical Infrastructure)
  Use case: Drawn into 8 mm EC grade copper rod for power transmission, building wires, and automotive harnesses.
  Performance advantage: 99.99% purity minimizes breakage during wire drawing; higher throughput versus non-LME cathodes (15–20% fewer mid-process rejects).

• Copper Tube & Sheet Production (Secondary Industry: HVAC, Plumbing, Architecture)
  Use case: Re-melted and cast into billets for seamless tubes, roofing sheets, or busbars.
  Performance advantage: Predictable viscosity and oxygen-free melt reduces dross formation, cutting furnace flux consumption by ~8% versus standard cathodes.

• Alloy & Master Alloy Manufacturing (Tertiary Industry: Automotive, Electronics)
  Use case: Base metal for brass, bronze, or copper-nickel alloys.
  Performance advantage: Ultra-low impurity profile (especially Bi and Pb) preserves alloy ductility and corrosion resistance, critical for thin-wall electronics connectors.

4. Competitive Advantages

• Quality Consistency – Every lot is accompanied by a mill test certificate (MTC) from an LME-accredited refiner; third-party SGS/Bureau Veritas inspection available pre-shipment.

• Supply Reliability – Dedicated production from state-owned or tier-1 private smelters (e.g., Chile, DRC, Zambia, Russia, Japan) with 24/7 logistics support.

• Logistics Capability – In-house warehousing at major ports (Rotterdam, Shanghai, Busan, Baltimore); lead times as low as 10–14 days for spot CIF contracts.

• Price Competitiveness – Priced at LME Cash settlement minus an agreed discount (negotiated based on volume); no hidden premiums for stamping or palletizing.

• Sustainability & Documentation – Available with traceability from mine-to-cathode; compliant with OECD Due Diligence Guidance for conflict minerals; ISO 14001 certified refining partners.

• Technical Support – Full datasheets, melting loss calculators, and coil yield modeling provided upon contract signature.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 20 metric tons (one full 20-ft container equivalent net weight)

• Loading Capacity:

  • 20-ft standard container: 20–22 MT (pallets stacked)

  • 40-ft high-cube container: 42–44 MT

  • Bulk vessel (break-bulk): 5,000–25,000 MT per shipment

• Incoterms Supported: FOB, CIF, CFR, EXW (subject to smelter location)

• Lead Time: 7 days for EXW/FOB; 14–21 days for CIF major global ports

• Payment Terms: Irrevocable LC at sight (preferred); SBLC or TT/DA for approved corporate counterparties