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Sandwich Panels, Aluminum and Thermoplastics honeycombs and Foams

SKINS IN BIDIRECTIONAL GLASSFIBER FABRIC 500 g/m2 impregnated with epoxy resin, CORE Aluminium honeycomb (Alloy series 3000*) with hexagonal cells

Alustep 500

ALUSTEP® 500 is a sandwich panel with a core in aluminum honeycomb faced with fibreglass impregnated with epoxy resin. The application of ALUSTEP SERIES’ panels permits huge savings as far as weight and thickness of slabs of natural stones, such as marbles and granite and mosaics are concerned. With the reduction of material and weight, material, logistics and installation costs can be significantly reduced.

 

 

  A - SKINS IN BIDIRECTIONAL GLASS FIBRE FABRIC
  500 g/m2 impregnated with epoxy resin

 

  B - CORE Aluminium honeycomb
  (Alloy series 3000*) with hexagonal cells
  Diameter: Ø1/4”, Ø3/8”,**
  Thickness Foil: from 50 to 70 microns

 

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Thickness starting from 4 mm to 80 mm

* To Aluminium alloy series 3000 belong: Aluminium alloy 3003, Aluminium alloy 3005, Aluminium alloy 3103, Aluminium alloy 3104

** Ø3/8” on request

 

Alustep 500
Application areas Shipyards and Shipbuilding Stone Reinforcement Stone Reinforcement Building Industry Interiors Sandwich panels for floor applications

 

TECHNICAL FEATURES

Panel’s weight Ø6 56kg/m3 (Ø 1/4”)
• Thickness’ tolerance ± 0,3 mm
• Dimension’s tolerance ± 30 mm
Total thickness mm
5
10
15
20
25
SKINS’ thickness mm
0,4 + 0,4
CORE’S thickness mm
4,2
9,2
14,2
19,2
24,2
Weight kg/m2
3
3,3
3,7
4
4,3

 

Technical data sheet for standard panels (dimensions, materials and special finishes on request)
TECHNICAL CHARACTERISTICS OF PANEL
thickness of the panel mm
from 5 to 100
panel size mm
standard 1250 x 2500 / 1500 x 3050 
on request up to 1600 x 4000
thickness’ tolerance mm
± 0,5
dimension’s tolerance mm
± 30
skins’ thickness mm
0,4
glass fibre skin
Glass fibre Plain 500 gr/m² 600 tex
Impregnation
Epoxy resin
honeycomb alluminium alloy
3000 series / 5000 series
thickness of honeycomb foil μm
50 and 70
diameter of honeycomb Ø = mm
from 3 to 19
honeycomb density Kg/m³
from 20 to 163
adhesive for aluminum honeycomb
Epoxy Resin
PANEL PHYSICAL AND MECHANICAL PERFORMANCES
type panel (some examples) mm
5
10
15
20
25
30
35
panel weight ‡ Kg/m2
2,5±0,2
2,7±0,2
3,0±0,2
3,3±0,2
3,6±0,2
3,8±0,2
4,1±0,2
compressive stabilised strength MPa ** ‡ ASTM C 365-365 M Mpa
2,9 ± 0,3
maximum load ** ‡ ASTM C 393 † N
180±20
400±40
600±60
800±80
1.000±100
1.200±100
1.400±100
deflection at maximum load ‡ ASTM C 393 † mm
55±6
28±3
18±2
13±1
11±1
9±1
8±1
skins E Elastic Modulus ** Mpa
28.000±1.000
moment of inertia I ** mm4/m
4.000
18.400
40.000
76.000
120.000
174.000
240.000
middle resistance to peeling ** ‡ ASTM D1781-98 (2012)
> 500 N/76 mm or >60 Nmm/mm
oad distributed on a 1000 x 1000 x 20mm supported on 2 sides kg
300
Marble/Panel Bonding Test according to ASTM D 4501
suitable bonding, the substrate (stone) breaks down
deflection recorded on 1000 x 1000 x 20mm panels supported on 2 sides under 300 kg weight distributed on the whole panel surface mm
18
maximum service temperature ** °C
- 40 / + 70; on request + 85
thermal expansion coefficient ** °C-1
1,5 * 10-5 / 1,5 mm for ΔT 100 °C for 1 meter length

 

* Tested by Certificating Institute
** Tested by Internal Laboratory
*** Approximate value
† Sample dimension with 4 support points (L, W) 540x540
‡ All values refer to a panel made of aluminum honeycomb with a cell diameter 6 mm 56 kg/m3 and epoxy adhesive

Honeycomb core’s properties
50 Microns
Type
Aluminium Alloy 3003/3005/3103/3104
Ø honeycomb in mm ca.
6
9
Ø honeycomb in inches
1/4"
3/8"
Density kg/m3
56 - 59
39 - 40
Compressive stabilised
strength MPa
3,0 - 3,5
1,4 - 1,95
Honeycomb core’s properties
70 Microns
Type
Aluminium Alloy 3003/3005/3103/3104
Ø honeycomb in mm ca.
6
9
Ø honeycomb in inches
1/4"
3/8"
Density kg/m3
80 - 83
54
Compressive stabilised
strength MPa
4,3 - 4,6
2,5 - 2,6

STANDARD DIMENSIONS (other dimensions available on request)

Disclaimer

LIABILITY DISCLAIMER: The above data are to the best of our knowledge correct and are intended to give information about our products and their potential applications. No warranty is given or implied in respect of certain properties of the products or their suitability for a particular application. We reserve the right for technical changes without further notice. We guarantee impeccable product quality under our terms of sale.