The 3A21 Aluminum Sheet is a 3000 series aluminum alloy sheet primarily composed of aluminum (Al) and manganese (Mn), giving it excellent anti rust performance and corrosion resistance. As a non heat treatable alloy, its mechanical properties are typically improved through cold working processes such as rolling and forming, rather than heat treatment.
The 3A21 Aluminum Sheet is a 3000 series aluminum alloy sheet primarily composed of aluminum (Al) and manganese (Mn), giving it excellent anti rust performance and corrosion resistance. As a non heat treatable alloy, its mechanical properties are typically improved through cold working processes such as rolling and forming, rather than heat treatment.
This alloy exhibits good formability and weldability, especially in the annealed and semi hardened conditions (tempers like O, H14, H24, etc.), making it suitable for a range of industrial and structural applications where high plasticity and corrosion resistance are critical.
Common uses include automotive body panels (roof, floor, skin), liquid containers, fuel tanks, heat exchangers, ventilation ducts, and other low load parts that require deep drawing and excellent corrosion resistance.
| Product Name | 3A21 Aluminum Sheet |
| Alloy Series | 3000 Series Aluminum Alloy |
| Temper/Status | O, F, H12, H14, H16, H18, H19, H22, H24, H26, H28, H111, H112, H114 (various tempers available) |
| Thickness Range | ~0.10 mm – 500 mm (varies by supplier) |
| Width Range | ~100 mm – 2650 mm typical (custom widths available) |
| Length Range | ~500 mm – 16000 mm or customer specified length |
| Surface Treatment Options | Mill finish, polished, checkered, anodized, coated (varies by supplier) |
| Key Properties | Excellent corrosion resistance; high plasticity; good weldability; moderate strength; lightweight |
| Typical Applications | Automotive body skin panels (floor, roof), fuel tanks, radiators, liquid containers, HVAC ducts, heat exchanger components, low load structural parts |
| Standards & Compliance | ASTM B209, GB/T, EN, JIS (depending on supplier and market) |
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