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]

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 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

 

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.