3105 Aluminum Sheet
3105 aluminum sheet is a 3xxx series Al-Mn alloy, formulated with manganese and magnesium additions to deliver moderate strength, excellent formability and reliable corrosion resistance. As a cost-effective general-purpose aluminum material, it balances ductility, mechanical strength and surface quality, and is widely used in construction, packaging, home appliances and general manufacturing sectors.
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Overview
3105 aluminum sheet is a non-heat-treatable Al-Mn series rust-proof aluminum alloy. After adding trace copper, manganese and magnesium elements, it obtains a moderate strength improvement on the basis of retaining excellent forming performance, corrosion resistance and weldability. As a cost-effective general-purpose aluminum sheet, it has become one of the widely recognized preferred metal materials in the fields of construction, decoration, packaging and general sheet metal manufacturing.
Specification
Alloy: 3105
Temper: O, H12, H14, H16, H18, H22, H24, H26, H28
Thickness: 0.2-10mm
Width: 100-2650mm
Length: Customized
Feature
Reliable corrosion resistance: The Al-Mn alloy matrix forms a dense and stable passive oxide film, effectively resisting atmospheric corrosion, moisture erosion and mild chemical environments, suitable for long-term outdoor service.
Excellent formability: O temper and soft tempers feature outstanding ductility, supporting deep drawing, stamping, bending and roll forming processes, ideal for manufacturing complex-shaped parts.
Moderate strength with light weight: It delivers higher strength than 1100 and 3003 alloys while maintaining low density, reducing structural self-weight without compromising load-bearing performance.
Good weldability: Compatible with TIG, MIG and other mainstream welding processes, with stable joint strength, facilitating on-site assembly and structural splicing.
Superior surface quality: Smooth and uniform plate surface with few defects, ensuring consistent effects of painting, anodizing and printing, meeting both decorative and functional surface requirements.
Cost-effective for mass production: Mature production technology and stable raw material supply give it outstanding cost performance, making it suitable for large-volume applications in construction and packaging industries.
Application
3105 aluminum sheets are widely used in the construction industry for roofing panels, exterior wall cladding, gutters, shutters and decorative panels, especially for color-coated aluminum coil products. In the packaging sector, thanks to excellent deep drawability and hygienic properties, they are the preferred material for bottle caps, food containers, aluminum foil packaging and can bodies. They are also applied in household appliances for shell panels, in transportation for interior trims and container side panels.
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