Unique Composition and Physical Characteristics
Aluminum alloys incorporate aluminum and other metals (e.g., copper, zinc, manganese, magnesium), giving them low density and high strength—used extensively in aerospace, automotive, construction, and sports equipment. Excellent thermal and electrical conductivity also make them valuable for electronics and power transmission.
luminum alloys are broadly categorized into wrought and cast alloys based on their processing methods: ◆ Wrought Aluminum Alloys
Suitable for rolling, extruding, forging, and stamping, with performance varying by primary alloying element and strength ratings.
1. Non-Heat-Treatable Aluminum Alloys Encompassing the 1000, 3000, 4000, and 5000 series, these alloys primarily rely on solid solution strengthening, work hardening, and dispersion strengthening to increase their strength. Typically regarded as medium-to-low strength materials, the 5000 series (Al-Mg) stands out for its corrosion resistance, weldability, and good formability, with higher strength than the 3000 (Al-Mn) and 4000 (Al-Si) series—though still under 400 MPa.
Anvil Industries Focus: We mainly provide wrought, heat-treatable aluminum alloys in our product lineup.
2. Heat-Treatable Aluminum Alloys Covering the 2000, 6000, and 7000 series, these alloys gain strength predominantly through precipitation hardening. Among them, the 7000 series (Al-Zn-Mg or Al-Zn-Mg-Cu) offers the highest strength; for instance, 7055 T7751 can reach 660 MPa. The 2000 series (Al-Cu, Al-Cu-Mg, Al-Cu-Mg-Si) follows closely in strength, while the 6000 series (Al-Mg-Si) is somewhat lower. In particular, 6063 aluminum—famed for its excellent extrudability, ductility, corrosion resistance, and ease of surface treatments (e.g., anodizing)—is one of the most widely used aluminum alloys.
◆ Cast Aluminum Alloys
Divided into general cast (sand casting, permanent mold casting, investment casting) and die casting. According to the Aluminum Association (AA), cast alloys range from 1xx to 9xx series, categorized by added elements (e.g., Al-Si alloys often achieve 300–350 MPa tensile strength). The 2xx (Al-Cu) and 7xx (Al-Zn) series offer relatively higher strength, potentially up to ~400 MPa.
◎ Versatility of Aluminum Alloys
One of aluminum’s greatest benefits is lightweight construction, reducing energy consumption in transportation. Its excellent corrosion resistance endures harsh conditions—perfect for marine infrastructure and chemical equipment. Aluminum also offers notable fatigue resistance and malleability for use in architecture, engineering, and art. Multiple processing methods (extrusion, casting, rolling) accommodate various shapes, and further surface treatments (anodizing, coating, plating) enhance aesthetics and durability. With increasing environmental awareness, aluminum’s role in electric vehicles and renewable-energy equipment is poised for significant growth.
