Solid Aluminum
Overview
Solid aluminum is a foundational material in modern industry, valued for its unique combination of lightness, strength, and resistance to corrosion. It exists in various forms, including ingots, billets, and blocks, tailored to specific manufacturing needs. Pure aluminum (CAS 7429-90-5) is often alloyed with elements like copper, magnesium, or silicon to enhance mechanical properties. Its versatility makes it indispensable in sectors ranging from transportation to electronics.
Physical and Chemical Properties
Aluminum’s low density (2.70 g/cm³) and high strength-to-weight ratio make it ideal for weight-sensitive applications. It melts at 660.3°C and exhibits excellent thermal and electrical conductivity, second only to copper among common metals. Its natural oxide layer provides exceptional corrosion resistance, even in harsh environments. Aluminum is non-magnetic and non-sparking, adding to its safety in industrial settings. Alloying can further adjust properties like hardness or weldability.
Main Applications
In aerospace, aluminum alloys reduce aircraft weight while maintaining structural integrity. The automotive industry uses it for engine parts and body panels to improve fuel efficiency. Construction relies on aluminum for window frames and roofing due to its durability and low maintenance. Its conductivity also makes it a staple in electrical transmission lines and heat exchangers. Recyclability (nearly 75% of all aluminum ever produced is still in use) underscores its sustainability.
Safety and Storage
Solid aluminum poses minimal health risks but requires precautions when processed. Dust or fumes from machining may irritate lungs; use PPE like masks and ventilation. Store in dry conditions to prevent surface oxidation. Avoid contact with strong acids or alkalis, which can corrode the metal. For bulk storage, palletize ingots to prevent moisture accumulation and ensure stability.
B2B Procurement Guide
Buyers should specify alloy type (e.g., 6061 for machining, 1100 for electrical uses) and temper (e.g., T6 for heat-treated strength). Certifications like ASTM B211 ensure quality for industrial applications. Market prices fluctuate with energy costs (aluminum production is energy-intensive). Consider long-term contracts to hedge against volatility. Verify supplier reliability through mill test reports and traceability documentation.
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