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Our aluminum-copper master alloy is a pre-alloyed additive manufactured from high-purity aluminum (≥99.7%) and electrolytic copper, designed to introduce controlled copper content (10-50%) into aluminum melts. Unlike pure copper additions, this AlCu alloy offers superior dissolution efficiency and composition accuracy, making it ideal for producing 2000-series aluminum alloys (e.g., 2024, 2219) widely used in structural applications. The alloy forms intermetallic compounds (Al₂Cu) that enhance strength, hardness, and heat treatability through precipitation hardening.
As a leading aluminum-copper alloy manufacturer, we boast an annual production capacity of 30,000MT for master alloys, with strict quality control systems certified by ISO 9001, SGS, and BV. Our 4 state-of-the-art plants ensure stable supply, supporting both small sample orders (50kg+) and bulk purchases (1000kg+/pallet) with flexible lead times (7-30 working days).
Crafted from high-purity raw materials and advanced melting processes, our aluminum-copper master alloy guarantees element uniformity within ±1% of the target content. This consistency eliminates batch-to-batch variations, a critical factor for producing aerospace-grade components where dimensional stability is non-negotiable. Each batch undergoes chemical composition testing, with test reports provided upon request.
Optimized grain refinement and oxide control technologies reduce surface inclusions to ≤0.03%, significantly improving the finish quality of cast and wrought aluminum products. This advantage is particularly valuable for automotive engine parts and aircraft structural components, where impurities can compromise fatigue resistance.
Compared to pure copper additions, our AlCu master alloy lowers melting temperatures by 30-50℃ (optimal addition temperature: 680-760℃), reducing energy consumption and production cycles. The pre-alloyed format also minimizes oxidation loss, cutting material waste by up to 15% – a key cost-saving benefit for high-volume manufacturers.
Specification | Details |
Copper Content | 10%, 20%, 30%, 40%, 50% (customizable between 10-50%) |
Shape | Waffle ingot, regular ingot (custom shapes available) |
Purity | ≥99.7% (raw material purity) |
Packaging | 1,000kg/pallet (neutral or customized packaging) |
Melting Point | 680-760℃ |
Certification | ISO 9001, SGS, BV |
Aerospace & Defense: Used in aircraft frames, rocket fuel tanks, and cryogenic vessels (2219 alloy series), leveraging high strength-to-weight ratio and cryogenic stability.
Automotive: Enhances engine components, suspension parts, and cylinder heads with improved wear resistance.
Industrial Casting: Ideal for precision molds, structural castings, and additive manufacturing powders.
Pre-bake the aluminum-copper master alloy at 150-200℃ for 2 hours to remove moisture.
Add to molten aluminum at 680-760℃, stirring thoroughly for 5-10 minutes to ensure uniform distribution.
Calculate addition amount using the formula: Required AlCu alloy (kg) = (Target Cu% - Current Cu%) × Aluminum melt weight (kg) / Cu content in AlCu alloy.
