ALUCOBOND® A2 - Technical Data
Thickness | | Standards | 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] | | 0.2 % Proof Stress | | EN 485-2 | [N/mm²] | | Elongation | | EN 485-2 | [%] | | Linear Thermal
Expansion | | EN 1999 1-1 | | 2.4 mm/m at 100ºC temperature difference | 
| Core | Mineral compound, polymer bonded | 
| Surface | Lacquering | | | | Coil Coating
Fluorocarbon based (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/DIS 717-1,
EN ISO 140-3 | [dB] | 27 | 27 | Loss 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 | 0.003 | Heat Transition | Λ* | DIN 4108 | [W/mK] | 1.5 | 1.33 | Coefficient | U | DIN 4108 | [W/m²K] | 5.81 | 5.78 | Temperature Resistance | | | [ºC] | -50 to +80 | |
ALUCOBOND® A2 3 mm | | ALUCOBOND® A2 4 mm | 
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| The graphs for 3 mm and 4 mm thick ALUCOBOND® A2 indicate the maximum permissible panel length (σ = 51 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.
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