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Sandwich Panels, Aluminum and Thermoplastics honeycombs and Foams

Cel supplies prepregs sandwich and honeycomn panels in glass fiber and epoxy to lighten mosaics and marbles, ALUSTEP 500 SL.

Alustep 500 SL

 

 A - SKIN IN BIDIRECTIONAL GLASS FIBRE FABRIC
 impregnated with epoxy resin 490g/m2

 

  B - CORE IN ALUMINIUM HONEYCOMB
  (Alloy series 3000*) with hexagonal cells
  Diameter in inches: Ø1/4”, Ø3/8”**
  Foil thickness: from 50 to 70 microns

 

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Thickness starting from 3 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 SL
Application areas Shipyards and Shipbuilding Stone Reinforcement Stone Reinforcement Building Industry Interiors Sandwich panels for floor applications

 

TECHNICAL FEATURES

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 50
panel size mm
standard 1250 x 2500 / 1500 x 3000 
on request up to 1550 x 3050
thickness’ tolerance mm
± 0,3
dimension’s tolerance mm
± 30
skins’ thickness mm
0,4
glass fibre skin
Glass fibre Plain 500 gr/m²
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 116
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
1,9±0,2
2,2±0,2
2,5±0,2
2,8±0,2
3,1±0,2
3,3±0,2
3,5±0,2
compressive stabilised strength MPa ** ‡ ASTM C 365-365 M Mpa
2,9 ± 0,3
maximum load ** ‡ ASTM C 393 † N
130
270
420
570
720
850
1000
deflection at maximum load ‡ ASTM C 393 † mm
42±6
20±3
14±2
11±2
8±1
7±1
6±1
skins E Elastic Modulus ** Mpa
26.000±2.000
moment of inertia I ** mm4/m
4.200
18.400
42.600
76.800
121.000
175.400
239.940
middle resistance to peeling ** ‡ ASTM D1781-98 (2012)
> 500 N/76 mm or >55 Nmm/mm
maximum service temperature ** °C
- 50 / + 90
thermal expansion coefficient ** °C-1
1,5 * 10^-5 / 1,5 mm for ΔT 100 °C for 1 meter length

 

* Tested by external Laboratory
** Tested by Internal Laboratory
‡ All values refer to a panel made of aluminum honeycomb with a cell diameter 6 mm 56 kg/m3 and epoxy adhesive
† Sample dimension with 4 support points (L, W) 540x540; distance among the lower points 500mm.
 

CONFORM TO AMERICAN STANDARDS

ASTM C67-M18
 

Water Absorption

ASTM E72-15
 

Strength-Transverse load

ASTM C297 M-16
 

Flatwise tensile strength

ASTM E84-17
 

Flamespread

TAS 201
TAS 203

Impact and Cyclic Wind Pressure
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.