3105 Aluminum Sheet 3105A Aluminium Alloy Plate

Sep 09, 2025

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3105 aluminum is a 3000-series aluminum alloy with manganese as the principal alloying element. It is designed for primary shaping into wrought products. The Aluminum Association (AA) designates this material as 3105. EN AW-3105 will be the designation used in European standards.

3105 aluminum sheet is 98% pure aluminum with the addition of certain alloys for increased strength. This alloy cannot be toughened through heat treatment. It is highly weldable, formable, and corrosion resistant.

 

Aluminum Sheet | Aluminum Plate is available in a variety of alloys that provide varying levels of weldability, corrosion resistance, and machinability.

Aluminum sheet is any aluminum sheet metal that is thicker than foil but thinner than 6 mm. It is available in a variety of forms, including diamond plate, expanded, perforated, and painted aluminum sheet. Aluminum plate refers to any aluminum sheet metal that is thicker than 6 mm.

Aluminium / Aluminum 3105 alloy is machinable to an average degree. However, its machinability can be improved in harder tempers compared to annealed conditions. Oil lubricants are used to machine this alloy.

 

Aluminium / Aluminum 3105 alloy has excellent forming properties. Bend radii in the one-thickness-to-two-t range are recommended for annealed H12, H14, and H16 tempers. Bend radii of 2–7 t should be employed for the H18 temper.

Except for cold working, the Aluminium / Aluminum 3105 alloy does not react to heat treatment.


Aluminium / Aluminum 3105 alloy is used in sheet metal fabrication. It is also utilized to make mobile houses, residential siding, and rain-carrying products.

3105 aluminum sheet 3105A aluminium alloy plate

1000 Series Pure Aluminum(1050,1060 ,1070, 1100)
2000 Series Aluminum-copper alloys(2024(2A12), LY12, LY11, 2A11, 2A14(LD10), 2017, 2A17)
3000 Series Aluminum-manganese alloys(3A21, 3003, 3103, 3004, 3005, 3105)
4000 Series Al-Si alloys(4A03, 4A11, 4A13, 4A17, 4004, 4032, 4043, 4043A, 4047, 4047A)
5000 Series Al-Mg alloys(5052, 5083, 5754, 5005, 5086,5182)
6000 Series Aluminum Magnesium Silicon Alloys(6063, 6061, 6060, 6351, 6070, 6181, 6082, 6A02)
7000 Series Aluminum, Zinc, Magnesium and Copper Alloys(7075, 7A04, 7A09, 7A52, 7A05)

 

Alloy Si Fe Cu Mn Mg Cr Zn Ti Other Al
Single Total
1050 0.25 0.4 0.05 0.05 0.05 _ 0.05 0.03 0.03 _ ≥99.5
1060 0.25 0.35 0.05 0.03 0.03 _ 0.05 0.03 0.03 _ ≥99.6
1100 Si+Fe:0.95 0.05~0.40 0.05 _ _ 0.1 _ 0.05 0.15 ≥99
1200 Si+Fe:1.00 0.05 0.05   _ 0.1 0.05 0.05 0.15 ≥99
3003 0.6 0.7 0.05~0.20 1.0~1.5 _ _ 0.1 _ 0.05 0.15 Remainder
3105 0.6 0.7 0.3 0.30~0.8 0.20~0.8 0.2 0.4 0.1 0.05 0.15 Remainder
5005 0.3 0.7 0.2 0.2 0.50~1.1 0.1 0.25 _ 0.05 0.15 Remainder
5052 0.25 0.4 0.1 0.1 2.2~2.8 0.15~0.35 0.1 _ 0.05 0.15 Remainder
5083 0.4 0.4 0.1 0.40~1.0 4.0~4.9 0.05~0.25 0.25 0.15 0.05 0.15 Remainder
5086 0.4 0.5 0.1 0.20~0.7 3.5~4.5 0.05~0.25 0.25 0.15 0.05 0.15 Remainder
6061 0.4~0.8 0.7 0.15~0.40 0.15 0.80~1.20 0.04~0.35 0.25 0.15 0.05 0.15 Remainder
6063 0.2~0.6 0.35 0.1 0.1 0.45~0.90 0.1 0.1 0.1 0.05 0.15 Remainder
6082 0.7~1.3 0.5 0.1 0.4~1.0 0.6~1.2 0.25 0.2 0.1 0.05 0.15 Remainder
8011 0.5~0.9 0.6~1.0 0.1 0.2 0.05 0.05 0.1 0.08 0.05 0.15 Remainder
Aluminium sheet/Aluminium plate
Aluminium Alloy Thickness
(mm)
Width
(mm)
Length
(mm)
Temper
A1050,A1060,A1070,A1100 0.15-200 20-2620 20-8000 O,H12,H14,H16,H18,H22,H24,H26
A3003,A3004,A3105 0.15-200 20-2620 20-8000 O,H12,H14,H16,H18,H22,H24,H26
A5052,A5005,A5083,A5754 0.15-200 20-2620 20-8000 O,H12,H14,H34,H32,H36,H111,H112
A6061,A6082,A6063 0.15-200 20-2620 20-8000 T4,T6,T651
A8011 0.15-200 20-2620 20-8000 O,H12,H14,H16,H18,H22,H24,H26
Material process CC AND DC
Customerize size Size can be produced as per clients requirement
Surface Mill finish ,Color coated(PVDF& PE),Stucco Embossed ,Bright Polish,Anodizing
Mirror,Brush,Perforated,Tread plate ,Corrugated etc
Quality Standard ASTM B209,EN573-1
Payment Terms TT OR LC OR DP at sight
Delivery time Within 25 days after receipt the lc or deposit
Material Quality Tension levelled ,flat ,Free of defects like oil stain,Roll Marks,Waves,Dents
scratches etc ,A+++ quality, production process passed sgs and bv inspection
Application Construction ,Building,Decoration ,Curtain Wall ,Roofing,Mould,Lighting,
curtain wall, ship building,Aircraft,Oil Tank ,Truck Body etc
Packing Standard export worthy wooden pallets
and standard packing is about 2 tons/pallet
Pallet weight also can be as per client's requirement

3105A aluminium alloy plate