The 3003 aluminum sheet is a versatile anti-corrosion Al-Mn alloy sheet with excellent formability, weldability, and moderate strength — characteristics that make it one of the most widely used aluminum alloys in industrial and commercial applications. Alloy 3003 is alloyed primarily with manganese, which boosts its strength approximately 20% higher than 1100 grade aluminum while maintaining lightweight and corrosion-resistant properties. It cannot be significantly strengthened by heat treatment, but cold working enhances mechanical performance.
The 3003 aluminum sheet is a versatile anti-corrosion Al-Mn alloy sheet with excellent formability, weldability, and moderate strength — characteristics that make it one of the most widely used aluminum alloys in industrial and commercial applications. Alloy 3003 is alloyed primarily with manganese, which boosts its strength approximately 20% higher than 1100 grade aluminum while maintaining lightweight and corrosion-resistant properties. It cannot be significantly strengthened by heat treatment, but cold working enhances mechanical performance.
Available in multiple tempers including O, H12, H14, H16, H18, H22, H24, H26 and more, the 3003 aluminum sheet supports a wide variety of surface finishes such as mill finish, bright finish, polished, hairline, brushed, embossed, and coated films for enhanced aesthetics or protection.
3003 aluminum sheet applications span from household and consumer products to industrial uses. It is commonly selected for kitchen and food-related equipment, storage tanks, power battery shells, transportation equipment, roofing and siding panels, automotive heat shields, sign components, and marine or outdoor structures due to its reliable corrosion resistance and ease of fabrication.
| Product Name | 3003 Aluminum Sheet |
| Alloy / Grade | 3003 (Al-Mn alloy) |
| Status / Tempers Available | O, H12, H14, H16, H18, H22, H24, H26, H28, H111/H112 (varies by supplier) |
| Thickness Range | 0.1 mm – 500 mm (sheet) |
| Width Range | 100 mm – 2650 mm (4″ – 104″) |
| Length Range | Up to ~16000 mm (custom cut or fixed) |
| Surface Finishes | Mill finish, bright finish, polished, hairline, brushed, sand blast, checkered/embossed, coated film |
| Mechanical Properties | Medium strength (~20 % stronger than 1100 series), good workability & weldability |
| Corrosion Resistance | Excellent atmospheric and chemical corrosion resistance |
| Primary Applications | Power battery shells, cooking utensils, storage tanks, roofing/siding panels, transportation components, automotive heat shields, sheet metal work, fuel tanks & fabrications |
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