Aluminium Wire Rods

Description

1. Product Overview
Aluminium Wire Rods (AWR) are semi-finished, continuously cast and rolled aluminium stocks, typically produced in coil form, serving as the critical feedstock for downstream wire drawing and extrusion processes. Primary industrial applications include electrical conductors (overhead transmission lines, power cables), mechanical rivets, and alloyed welding fillers. The key value proposition lies in their superior electrical conductivity-to-weight ratio and excellent formability, which reduce downstream processing costs and energy consumption. Strategically, AWR are indispensable to global electrification, grid modernization, and lightweighting initiatives, making supply chain reliability a competitive differentiator in capital-intensive industries.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Compliant with AA-1350 (EC grade, 99.5% min Al), AA-1370 (high conductivity, 99.7% min Al), or AA-5051/5154 (alloy grades for mechanical applications). Impurity limits: Fe ≤ 0.35%, Si ≤ 0.12% for EC grade.

• Purity Level: Electrical conductor grade: 99.7% – 99.9% Al. Mechanical/alloy grade: 98.5% – 99.2% Al.

• Physical Characteristics: Form – Coiled rod (cast & rolled). Color – Bright silver metallic. Diameter range – 9.5 mm, 12 mm, 15 mm (custom ±0.2 mm). Density – 2.70 g/cm³. Tensile strength (as-rolled): 85–130 MPa. Conductivity (EC grade) – ≥ 61% IACS.

• Packaging: Plastic-wrapped steel coil carriers + galvanized steel strapping (4–6 bands). Coil weight: 500–1,500 kg (standard export bundle: 1 coil per pallet or 3–6 coils per steel crate). Layer pads and desiccant sachets optional for high-humidity routes.

• Shelf Life: Indefinite under dry, indoor storage (≤ 70% RH, no corrosive atmosphere). Oxidation risk requires use within 12 months if stored without climate control.

3. Core Industrial Applications

• Primary industries: Electrical utilities, wire & cable manufacturing, automotive wiring harnesses, overhead transmission line construction, and welding electrode production.

• Operational use cases: Drawing down to fine wires (0.2–4 mm) for building wiring, ACSR (Aluminum Conductor Steel Reinforced) core wires, mechanical rivets in HVAC and lighting fixtures, and MIG/TIG filler rods for aluminium welding.

• Performance advantages vs. alternatives: Compared to copper wire rod, AWR offers 50% lower density at similar conductivity/cross-section (AA-1350), reducing structural loads on transmission towers by 30%. Versus lower-purity rods (e.g., 99.2%), EC-grade AWR reduces joule losses by 12%, directly lowering lifetime operating costs for utilities. The uniform microstructure (grain size ≤ 50 µm) ensures break-free drawing at speeds up to 25 m/s, minimizing production downtime.

4. Competitive Advantages

• Quality consistency: In-line eddy current testing + hot and cold ultrasonic inspection for internal voids and surface cracks. Batch-to-batch conductivity variance < 0.5% IACS.

• Supply reliability: Dual smelting sources (hydro-powered and natural gas-based) with 50,000 MT/month buffer stock located in Rotterdam, Singapore, and Houston hubs.

• Logistics capability: Containerized, break-bulk, and coiled-lift frames available. Pre-shipment third-party inspection (SGS/Bureau Veritas) and marine insurance included.

• Price competitiveness: Direct mill contract pricing eliminates trader markups. Volume-based quarterly rebates > $2/MT for 1,000+ MT annual contracts.

• Sustainability: 85% recycled content option available with mass balance certification (ISO 14021). Hydro-powered smelting reduces carbon footprint to ≤ 2.3 kg CO₂/kg Al (vs. industry average 6.7 kg). Technical support includes full material test reports (MTR), heat number traceability, and on-site drawability optimization consulting.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): BULK 20 MT (one standard 20-foot container or part of a full vessel lot).

• Loading capacity: 20 MT per 20′ dry container (standard stacking: 12–14 coils, each 1.2–1.7 MT). 40′ high-cube container: up to 26 MT (subject to road weight limits). Break-bulk vessel: 200–2,000 MT per hold.