ThicknessStandards Unit 3 mm 4 mm
Thickness of
Aluminium Layers 		    [mm] 0.5
Weight     [kg/m²] 5.9 7.6
Width    
[mm] 1250 / 1500

Technical properties
Section modulus W DIN 53293 [cm³/m] 1.25 1.75
Rigidity E·J DIN 53293 [kNcm²/m] 1250 2400
Alloy / Temper of
Aluminium Layers 		  EN 573-3
EN 515		  EN AW 5005A (AIMg1)
H22 / H42
Modulus of Elasticity   EN 1999 1-1 [N/mm²] 70'000
Tensile Strength of Aluminium   EN 485-2 [N/mm²]

Rm ≥ 130

0.2 % Proof Stress   EN 485-2 [N/mm²]

Rp0,2 ≥ 90

Elongation   EN 485-2 [%]

A50 ≥ 5

Linear Thermal
Expansion 		  EN 1999 1-1  2.4 mm/m at 100ºC temperature difference

Core

Mineral-filled core
with polymer adhesives


Surface  
Lacquering       Coil Coating
Fluorocarbon (e.g. PVDF)
Gloss (initial value)   EN 13523-2  [%] 30-80
Pencil Hardness   EN 13523-4   HB-F
 
Acoustical Properties
Sound Absorption Factor αs ISO 354   0.05
Sound Transmission Loss Rw ISO 717-1 [dB] 27 27
Loss Factor d EN ISO 6721,
Frequency range 100-3200 Hz 		  0.0040.005
 
Thermal Properties
Thermal Resistance R DIN 52612 [m²K/W] 0.0020.002
Thermal conductivityλDIN 52612[W/mK]1.991.77
Heat Transition Coefficient U DIN 52612 [W/m²K] 5.83 5.80
Temperature Resistance     [ºC] -50 to +80
 

Wind load and permissible panel sizes

ALUCOBOND® A2 3 mm ALUCOBOND® A2 4 mm



The graphs for 3 mm and 4 mm thick ALUCOBOND® A2 indicate the maximum permissible panel length (σ = 53 N/mm²) (without having to add a stiffener) based in applicable design wind load and panel width. Values apply to 4-side supported panels. Values for other systems on request.