DURA-CORE® II 5056 Aluminum Honeycomb

Overview

For those designers demanding maximum mechanical strength with excellent corrosion resistance, DURA-CORE® II 5056 aluminum honeycomb is the lightweight material of choice.

Prior to bonding, the foil is cleaned and treated using a proprietary chemical conversion coating. The resulting honeycomb exhibits excellent corrosion resistance in hostile environments, especially salt fog. Typical weight loss after 30 days in salt fog (using ASTM B-117) is 15 mg/ft2 (161.4 mg/m2), whileAMS-C-7438 allows up to 125 mg/ft2 (1345.0 mg/m2).

We produce a broad range of cell sizes and densities, assuring that the correct product will be available for your application. When combined with our ability to custom-manufacture specific core types, plus our Special Processing capabilities, we can ship you drop-in core details in any shape, size, density or contour that you need.

For lightweight applications requiring maximum mechanical strength and excellent corrosion resistance at a good value, DURA-CORE® II 5056 is the best all-around structural core material.

Applications

  • Aircraft control surfaces
  • Energy absorbers
  • Aircraft engine nacelles
  • Space applications
  • Advanced sporting equipment
  • Satellite components
  • Other high performance applications requiring maximum strength-to-weight ratio

Features

  • Maximum mechanical strength
  • Corrosion resistant
  • Elevated temperature performance to 350°F/177°C
  • Fire and fungus resistant
  • Broad range of cell sizes
  • Easily machined and formed
  • Resistant to hostile environments
  • Complies with AMS-C-7438 and many other aerospace specifications

Availability

  • Unexpanded blocks
  • Unexpanded slices
  • Expanded sheets
  • Pieces cut to size
  • DURA-CORE® II 5056 aluminum honeycomb is available with cell perforations to facilitate venting
  • Custom dimensions, cell sizes, tolerances and mechanical properties are also available

Available Dimensions

StandardMaximumTolerance
inchesmminchesmminchesmm
Ribbon (L)4812191002540+2.0 / -0.0+50.8 / -0.0
Transverse (W)9624381443658+4.0 / -0.0+101.6 / -0.0
Thickness (T)35889
up to 4 inches (102mm) T±0.005±0.127
over 4 inches (102mm) T±0.062±1.575
Densitysee mechanical characteristics chart±10%
Cell Sizesee mechanical characteristics chart±10%

Construction

Substrate: 5056 aluminum

Coating: Dura-coating

How to Order

When ordering, please specify DURA-CORE® II 5056 using the following format:
Example: DUR – 5056 – 3.1 – 3/16 – N – E, where

ProductAlloyDensityCell SizePerforated or Non-PerforatedExpanded or Unexpanded
DUR50563.13/16P or NE or U

Mechanical Characteristics

Mechanical Characteristics (Typical Values – US units)
Stabilized Compressive StrengthCrush StrengthShear StrengthShear Modulus
psipsipsiksi
LWLW
75° F350° F75° F75° F350° F75° F350° F75° F
3.1 – 1/8 – .00073552301802551701601703216
4.5 – 1/8 – .00107004803204502742602745125
6.1 – 1/8 – .001512107805507004254104257737
8.1 – 1/8 – .00201920135085096059057559011250
10.0 – 1/8 – .0025220016251200119083067583014060
12.0 – 1/8 – .00303250195015501725*1430*1025*1430*16075
2.6 – 5/32 – .00072701601302051301201302412
3.8 – 5/32 – .00105103502303402302002304120
5.3 – 5/32 – .00158756254355603703353706431
6.9 – 5/32 – .0020135010406607755254405259142
2.0 – 3/16 – .00072051158014510087100179
3.1 – 3/16 – .00104202301802701701551703216
4.4 – 3/16 – .00156754753104352602502605024
5.7 – 3/16 – .002010107304805704103354107034
6.9 – 3/16 – .0025125010256607655254505259142
1.6 – 1/4 – .0007115806092706270136
2.3 – 1/4 – .00102701501201851101051102111
3.4 – 1/4 – .00154903001903001901801903518
4.3 – 1/4 – .0020630460300410255235254824
5.2 – 1/4 – .00258306253805003603103606230
6.0 – 1/4 – .003010007755256404153754157536
7.9 – 1/4 – .00401580130082090056554056510849
2.3 – 3/8 – .00152301501201751101001102111
3.0 – 3/8 – .00203502201602501651501653015
3.7 – 3/8 – .00254503252203252251902254020
4.2 – 3/8 – .00305504102903952602252604723
5.4 – 3/8 – .00408506504505653903253906632

For minimum values, please see AMS-C-7438. *Beam Shear

Mechanical Characteristics (Typical Values – US units)
Stabilized Compressive StrengthCrush StrengthShear StrengthShear Modulus
lbs/ft3 – inches – inchesMPaMPaMPaMPa
LWLW
23° C177° C23° C23° C177° C23° C177° C23° C
3.1 – 1/8 – .00072.451.591.241.761.171.101.17221110
4.5 – 1/8 – .00104.833.312.213.101.891.791.89352172
6.1 – 1/8 – .00158.345.383.794.832.932.832.93531255
8.1 – 1/8 – .002013.249.315.866.624.073.964.07772345
10.0 – 1/8 – .002515.1711.208.278.205.724.655.72965414
12.0 – 1/8 – .003022.4113.4410.6911.89*9.86*7.07*9.86*1103517
2.6 – 5/32 – .00071.861.100.901.410.900.830.9016583
3.8 – 5/32 – .00103.522.411.592.341.591.381.59283138
5.3 – 5/32 – .00156.034.313.003.862.552.312.55441214
6.9 – 5/32 – .00209.317.174.555.343.623.033.62627290
2.0 – 3/16 – .00071.410.790.551.000.690.600.6911762
3.1 – 3/16 – .00102.901.591.241.861.171.071.17221110
4.4 – 3/16 – .00154.653.282.143.001.791.721.79345165
5.7 – 3/16 – .00206.965.033.313.932.832.312.83483234
6.9 – 3/16 – .00258.627.074.555.273.623.103.62627290
1.6 – 1/4 – .00070.790.550.410.630.480.430.489041
2.3 – 1/4 – .00101.861.030.831.280.760.720.7614576
3.4 – 1/4 – .00153.382.071.312.071.311.241.31241124
4.3 – 1/4 – .00204.343.172.072.831.761.621.76331165
5.2 – 1/4 – .00255.724.312.623.452.482.142.48427207
6.0 – 1/4 – .00306.895.343.624.412.862.592.86517248
7.9 – 1/4 – .004010.898.965.656.213.903.723.90745338
2.3 – 3/8 – .00151.591.030.831.210.760.690.7614576
3.0 – 3/8 – .00202.411.521.101.721.141.031.14207103
3.7 – 3/8 – .00253.102.241.522.241.551.311.55276138
4.2 – 3/8 – .00303.792.832.002.721.791.551.79324159
5.4 – 3/8 – .00405.864.483.103.902.692.242.69455221

For minimum values, please see AMS-C-7438. *Beam Shear

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