ALUCOBOND® A2

Our non-combustible aluminium composite panel.

ALUCOBOND® A2 3A Composites GmbH

ALUCOBOND® A2 is our non-combustible aluminium composite panel for façades which meets all relevant standards worldwide. ALUCOBOND® A2 fulfils very exacting requirements of the fire safety regulations thanks to the mineral-filled core, and increases the scope for building concepts and design. Like all products in the ALUCOBOND® family, ALUCOBOND® A2 is easy to process, break-proof, impact-resistant, weather-resistant and, most notably, non-combustible.

Product properties

ALUCOBOND® A2 3A Composites GmbH

ALUCOBOND® A2 in comparison with solid aluminium sheets
Required thickness and corresponding weights with the same bending stiffness

    ALUCOBOND® A2   Aluminium  
Flexural rigidity (E·I) Section modulus (W) Thickness Weight Thickness Weight
1250 kN cm²/m 1.25 cm³/m 3 mm 5.9 kg/m² 2.7 mm 7.3 kg/m²
2400 kN cm²/m 1.75 cm³/m 4 mm 7.6 kg/m² 3.3 mm 8.9 kg/m²

ALUCOBOND® circular

ALUCOBOND® A2 circular is manufactured with 89% recycled aluminum. Using the mass balance approach, we have significantly increased the recycled content without compromising quality or processability.

Benefits:

Reduction of CO2 emissions: The CO2 emissions of the cover sheets have been reduced by 52% compared to conventional processes.
Circular economy: Production waste is recycled, the aluminum is remelted, and used for new panels.
Short transport distances: With transport distances of less than 15 kilometers between the recycling facility and the manufacturer, we further minimize our ecological footprint.
Environmentally friendly and efficient: The use of secondary aluminum saves fossil resources and reduces greenhouse gas emissions, without requiring adjustments to existing processing equipment.
Diversity in design: see delivery program

Product range

ALUCOBOND® A2
Thickness: 3/4mm

Width [mm] 1000 1250 1500 1575 1650
Length [mm] 2000-6800 2000-6800 2000-6800 2000-6800 2000-6800
Solid   ● ●   ●
Metallic   ● ●   ●
Urban   ● ●    
Terra   ● ●    
NaturAL*     ●    
Anodized Look   ● ●   On request
Spectra   ● ●    
Sparkling   ● ●    
Rocca   ● ●    
Artenara   ● ●    
Design     ●    
Mill finish   On request On request    

* Exception: ALUCOBOND® naturAL Pure is only available in ALUCOBOND® A2 in a width of 1250 mm.

Dimensional tolerances (standard)

Due to manufacturing processes, a lateral misalignment of the cover sheets (up to 2 mm) may occur at the panel edges .

Thickness: ± 0.2 mm ( mill finish | stove-enamelled | anodized )
Width: - 0 / + 4 mm
Lengths: 2000 - 4000 mm; - 0 / + 6 mm
Lengths: 4001 - 6800 mm; - 0 / + 10 mm

Colours and finishes

Other colours and finishes are available on request. These are subject to our minimum quantities.

Technical data

Thickness   Standard Unit 3 mm 4 mm
Cover sheet thickness     [mm] 0.5 0.5
Weight     [kg/m²] 5.9 7.6
Production widths     [mm] 1250 / 1500 1250 / 1500
Technical properties          
Section modulus W DIN 53293 [cm³/m] 1.25 1.75
Flexural rigidity E·J DIN 53293 [kNcm²/m] 1250 2400
Alloy /
temper of the cover sheets
  EN 573-3
EN 515
  EN AW 5005/A
(AIMg1)
H22 / H42
EN AW 5005/A
(AIMg1)
H22 / H42
Modulus of elasticity   EN 1999 1-1 [N/mm²] 70.000 70.000
Tensile strength of the cover sheets   EN 485-2 [N/mm²] Rm ≥ 130 Rm ≥ 130
Proof stress (0.2 limit)   EN 485-2 [N/mm²] Rp0.2 ≥ 90 Rp0.2 ≥ 90
Elongation   EN 485-2 [%] A50 ≥ 2 A50 ≥ 2
Linear
expansion coefficient
  EN 1999 1-1   2.4 mm/m at 100 K
Temperature difference
2.4 mm/m at 100 K
Temperature difference
Core          
Mineral fillers
with polymer binder
         
Surface          
Lacquering/Coating       High-quality polymer coating systems
applied using the coil coating process
High-quality polymer coating systems
applied using the coil coating process
Acoustic properties          
Sound absorption factor αs ISO 354   0.05 0.05
Rated sound reduction index Rw ISO 717-1 [dB] 27 27
dissipation factor d EN ISO 6721,
Frequency range 100-3200 Hz
  0.004 0.005
Thermal properties
         
Thermal resistance R DIN 52612 [m²K/W] 0.002 0.002
Thermal conductivity λ DIN 52612 [W/mK] 1.99 1.77
Heat transistion
coefficient
U DIN 52612 [W/m²K] 5.83 5.80
Temperature resistance     [ºC] -50 to +80 -50 to +80

Wind loads and panel dimensions

In Germany, the dimensioning of ALUCOBOND® façade systems is regulated by the general building approval (abZ) No. Z-10.3-774. In the Technical Extras section, you can find this and various design examples at Technical extras.

Fire rating

Country Test according to ... Rating
EU EN 13501-1 Class A2-s1, d0
Germany EN 1187 (method 1) /
DIN 4102-7 (roofing)
passed
Great Britain
England /
Wales /
Scotland
BR 135 Requirements of the LUL fulfilled
Switzerland VKF RF1
Poland EN 13501-1 Class A2-s1, d0
Russia GOST 30244-94
GOST 30402-95
GOST 12.1.044-89
GOST 12.1.044-89
G1 (combustibility)
W1 (spread of flame)
D1 (smoke generation capacity)
T1 (toxicity of fumes)
Australia AS ISO 9705

AS 1530.3 Indices



EN 13501-1
Group 1 material
SMOGRA 0.630 m2 / s2
0 (combustibility)
0 (spread of flame )
0 (heat development)
0-1 (smoke development)
A2-s1, d0
Country Large fire test Rating
Austria ÖNORM B 3800-5 passed
France Lepir 2 passed
Hungary MSZ 14800-6 passed
Great Britain BS 8414 part 1 & 2 passed
Russia GOST 31251 passed
ALUCOBOND® A2 3A Composites GmbH
Bauhaus, Germany // © Stefan Müller

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