What is 3105 Aluminum Sheet?
3105 Aluminum Sheet is a non-heat-treatable aluminum-manganese alloy containing approximately 98% aluminum. It offers excellent corrosion resistance, moderate strength, and superior formability, making it suitable for deep drawing, bending, and roll forming processes. With good weldability and outstanding surface finishing properties, 3105 aluminum sheet is widely used as a base material for pre-painted or coated products. It is commonly supplied in tempers such as
O, H14, H16, H18, and H24, with thicknesses ranging from
0.2 mm to 5 mm. Typical surface finishes include mill finish, coated, chromated, or lacquered. Conforming to ASTM B209 standards, 3105 aluminum sheet is extensively applied in architectural panels, roofing, gutters, signage, bottle caps, and mobile home exteriors. Its combination of light weight, durability, and excellent paint adhesion makes it a cost-effective choice for decorative and structural applications.
3105 Aluminum Sheet Specification
| Alloy |
3105 Aluminum (Al-Mn Alloy, approx. 98% Al) |
| Temper |
O, H12, H14, H16, H18, H22, H24, H26, H28 |
| Thickness |
0.2 mm – 5.0 mm (custom sizes available) |
| Width |
700 mm – 2500 mm (commonly 1000 mm, 1220 mm, 1524 mm) |
| Length |
2000 mm – 6000 mm (custom lengths on request) |
| Surface Finish |
Mill Finish, Painted (PVDF/PE coated), Chromated, Lacquered, Bright Finish |
| Standard |
ASTM B209, ASME SB209, EN 573, EN 485 |
| Application |
Building facades, roofing panels, gutters, signage, bottle caps, mobile home exteriors, and decorative panels |
3105 Aluminum Sheet Stock
| Alloy |
Temper |
Thickness (mm) |
Width (mm) |
Length (mm) |
Surface Finish |
Standard |
| 3105 |
H14 |
0.5 |
1000 |
2000 |
Mill Finish |
ASTM B209 |
| 3105 |
H14 |
0.8 |
1220 |
2440 |
Mill Finish |
ASTM B209 |
| 3105 |
H16 |
1.0 |
1250 |
2500 |
Painted (PVDF) |
ASTM B209 |
| 3105 |
H18 |
1.2 |
1500 |
3000 |
Mill Finish |
ASTM B209 |
| 3105 |
H24 |
1.5 |
1220 |
2440 |
Chromated |
ASTM B209 |
| 3105 |
H24 |
2.0 |
1524 |
3048 |
Lacquered |
ASTM B209 |
| 3105 |
H26 |
2.5 |
1000 |
2000 |
Mill Finish |
ASTM B209 |
| 3105 |
H28 |
3.0 |
1250 |
2500 |
Painted (PE) |
ASTM B209 |
| 3105 |
H14 |
4.0 |
1500 |
3000 |
Bright Finish |
ASTM B209 |
| 3105 |
H18 |
5.0 |
1524 |
3048 |
Mill Finish |
ASTM B209 |
Stock information is updated in real time, please contact ZGGDMETAL for the latest information and quotation. Quick Quote.
What are 3105 Aluminum Sheet used for?
3105 Aluminum Sheet is widely used in applications that require good formability, surface finish, and corrosion resistance rather than high strength. It is commonly used for architectural and decorative purposes, such as roofing, wall cladding, siding panels, ceilings, and rain gutters. In addition, it is also applied in the manufacture of bottle caps, closures, signage, and advertising boards, where excellent paint adhesion and surface coating properties are essential. The alloy’s light weight, weldability, and resistance to atmospheric and chemical corrosion make it suitable for transportation panels, mobile home exteriors, and general sheet metal fabrication. Overall, 3105 aluminum sheet is ideal for painted or coated products that demand both durability and visual appeal.
What are the characteristics of 3105 Aluminum Sheet?
3105 Aluminum Sheet is a non-heat-treatable alloy characterized by excellent corrosion resistance, good weldability, and superior formability. It contains approximately 98% aluminum with manganese as the main alloying element, which improves strength compared to pure aluminum without sacrificing ductility. The alloy offers a smooth surface suitable for painting, coating, and anodizing, making it ideal for decorative and architectural applications. It also maintains stable mechanical properties after forming and bending. 3105 aluminum sheet conforms to ASTM B209 standards, is lightweight, and performs well in outdoor environments. Overall, it combines durability, aesthetics, and cost efficiency, making it a preferred choice for building materials, signage, and general fabrication uses.
