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Sandwich Panels, Aluminum and Thermoplastics honeycombs and Foams

ALUSTEP® FN  is a lightweight sandwich panel with a core in aramid paper and skins in glass fiber reinforced with phenolic resin.

SANDWICH PANEL ALUSTEP FN

ALUSTEP® FN is a lightweight sandwich panel with a core in aramid paper and skins in glass fibre reinforced with phenolic resin.This panel offers unique characteristics since it combines lightweight with high mechanical properties. Thanks to the low flammability of phenolic resin, the certified version of this panel can be used in shipyards, trains and transport in general.

 

 

  A - SKINS IN GLASS FIBRE FABRIC 

  impregnated with phenolic resin
 

  Thickness mm: 0,25÷0,3

 

  B - CORE IN ARAMID PAPER 

  HONEYCOMB

  Diameter: from Ø1/8” to Ø3/16”, X1

 

    TDS TO DOWNLOAD- PDF

 

  ASK FOR QUOTATION

 

 

 

 

X1 = other diameters on request

 

 

Alustep FN
Application areas Shipyards and Shipbuilding Stone Reinforcement Stone Reinforcement Interiors Railway sector Fire certifications

 

TECHNICAL FEATURES

Technical data sheet for standard panels (dimensions, materials and special finishes on request)
TECHNICAL CHARACTERISTICS OF PANEL
panel size mm
standard 1250 x 2500
thickness’ tolerance mm
± 0,4
dimension’s tolerance mm
± 30
skins’ thickness mm
0,3
glass fibre skin type
satin 8/1 300 gr/m² 
Impregnation
phenolic resin
honeycomb type
aramid paper, impregnated with phenolic resin
diameter of honeycomb Ø = mm
from 3 to 4,8
honeycomb density Kg/m³
48 and 32
adhesive for aluminum honeycomb
thermoplastic
PANEL PHYSICAL AND MECHANICAL PERFORMANCES
type panel (some examples) mm
5
10
15
20
25
30
35
panel weight ‡ Kg/m2
1,4±0,1
1,7±0,1
1,9±0,1
2,1±0,1
2,4±0,1
2,6±0,1
2,8±0,1
compressive stabilised strength MPa ** ‡ ASTM C 365-365 M Mpa
1,6 ± 0,2
maximum load ** ‡ ASTM C 393 † N
100±10
210±20
320±30
430±40
540±50
650±60
740±70
deflection at maximum load ‡ ASTM C 393 † mm
49+5
24±3
16±2
12±1
10±1
8±1
7±1
skins E Elastic Modulus ** Mpa
22.000±1.000
moment of inertia I ** mm4/m
3.300
14.120
32.400
58.200
91.600
132.000
181.000
middle resistance to peeling ** ‡ ASTM D1781-98 (2012)
> 450 N/76 mm or >45 Nmm/mm
maximum service temperature ** °C
- 50 / + 80
thermal expansion coefficient ** °C-1
1,5 * 10^-5 / 1,5 mm for ΔT 100 °C for 1 meter length


** Tested by Internal Laboratory
*** Approximate value
† Sample dimension with 4 support points (L, W) 540x540; distance among the lower points 500mm, distance among the upper points 250mm
‡ All values refer to a panel made of a honeycomb in nomex diameter 3mm mm 48 kg/m3 and two skins in fibreglass impregnated with phenolic resin and thermoplastic adhesive

 

Certified version of ALUSTEP FN must be requested while asking for a quotation.
Certified products must be requested in advance and might have a price surcharge due to certified materials. 
 

Certifications/Classifications for ALUSTEP FN’s reaction to fire Tested by a certified institute

FIRE REACTION
SECTOR NORM CLASSIFICATION DESCRIPTION

SHIPBUILDING

FTP CODE 2010 3.18a
 

 

0407

LOW FLAMESPREAD
 

MOD. B.
 

Certification Nr.
MED- 269 (IG-004-2019) REV.0


MOD. D.
 

Certification Nr.
MED- 154 (IG-178-2014) REV.16

 

ALUSTEP FN

 

Aramid paper honeycomb panel with
skins in fiberglass impregnated with
phenolic resin complying with the
MED directive for the application in
ships registered or applied in the
European Union.
Item N. MED / 3.18a, IMO 2010 FTP Code,
Annex 1

 

 

 

 U.S. Coast Guard

MOD. B.
 

USCG Approbation Nr.
164.112/0407


MOD. D.


USCG Approbation Nr.
164.112/0407/MED000154

ALUSTEP FN
 

Aramid paper panel with
skins in fiberglass
impregnated with phenolic resin

 

RAILWAY
VEHICLES

 UNI EN 45545-2

HL2 (HAZARD LEVEL)
(10- 25mm)


Class certification Nr.
358634

 

ALUSTEP FN

Aramid paper panel with skins
in fiberglass impregnated with
phenolic resin.

 

Meets requirements for applications
 

R2 suspended ceilings, countertop
 

R1 partitions
RAILWAY
VEHICLES		 UNI EN 45545-2

HL3 (HAZARD LEVEL)
(4-25mm)
 

Class certification Nr.
355811

 

ALUSTEP FN

aramid paper panel with skins in
fiberglass impregnated with
phenolic resin.
 

Meets requirements for applications

 
R10 floors

 

 
Honeycomb core’s properties

Nomenclature

Compression Strength

L-Shear

W-Shear
  Cell size mm Density kg/m3 N/mm2 N/mm2 N/mm2

Hexagonal

3,2

48

1,90

1,16

0,62

Hexagonal

3,2

64

3,10

1,48

0,82

Hexagonal

3,2

80

4,70

1,95

1,05

Hexagonal

3,2

96

6,60

2,45

1,42

Hexagonal

3,2

128

11,30

2,95

1,78

Hexagonal

3,2

144

13,20

3,05

1,90
 

Hexagonal

4,0

29

0,60

0,45

0,26

Hexagonal

4,0

80

5,10

1,90

0,98
 

Hexagonal

4,8

32

0,90

0,58

0,36

Hexagonal

4,8

48

2,60

0,98

0,56

Hexagonal

4,8

64

3,40

1,70

0,92

Hexagonal

4,8

80

6,00

1,95

1,10

Hexagonal

4,8

96

7,30

2,26

1,32
 

Hexagonal

6,4

24

0,54

0,34

0,18

Hexagonal

6,4

32

0,80

0,54

0,30

Hexagonal

6,4

48

2,05

1,00

0,56

Hexagonal

6,4

64

3,40

1,54

0,79
 

Hexagonal

9,6

24

0,54

0,34

0,18

Hexagonal

9,6

32

0,68

0,56

0,29

Hexagonal

9,6

48

1,80

1,15

0,66
 

Over expanded

4,8

29

0,60

0,31

0,32

Over expanded

4,8

48

2,30

0,60

0,72

Over expanded

4,8

64

3,80

0,72

0,90

Over expanded

4,8

72

4,00

0,75

0,92

Over expanded

4,8

80

5,30

0,88

1,17

Over expanded

4,8

96

6,70

0,92

1,28
 

Over expanded

6,4

48

2,30

0,60

0,72

Over expanded

6,4

64

3,20

0,72

0,90

Tolerance - density +/- 16%

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.