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

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     On request
Metallic     On request
Spectra & sparkling      
Anodized Look     On request
NaturAL*      
ALUCOBOND® legno – premium wood      
Vintage      
Façade design – Customised decor      
Rocca      
Mill finish      

* Exception: ALUCOBOND® naturAL Reflect is only available in ALUCOBOND® PLUS 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 other documents, including load tables, dimensioning aids 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
Poland According to ITB specifications passed
Russia GOST 31251 passed
ALUCOBOND® A2 3A Composites GmbH
Bauhaus, Germany // © Stefan Müller

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