FabDigitFabDigit

5056 Aluminum Honeycomb vs XPS Foam Core

Composite · grade comparison

5056 Aluminum Honeycomb and XPS Foam Core are both composite grades. 5056 Aluminum Honeycomb is the stronger of the two: yield strength 3 MPa (0.493 ksi) against 0.36 MPa (0.0522 ksi) for XPS Foam Core, about 9.4 times as much; tensile strength follows at 4 MPa (0.624 ksi) vs 0.4 MPa (0.058 ksi). XPS Foam Core is lighter (0.03 g/cm³ vs 0.05 g/cm³ for 5056 Aluminum Honeycomb) and 5056 Aluminum Honeycomb is stiffer (1 GPa vs 0.01 GPa). On the shop floor, XPS Foam Core machines more easily (excellent vs fair) and XPS Foam Core sits in a lower cost tier (standard, $$) than 5056 Aluminum Honeycomb (high, $$$$).

5056 Aluminum HoneycombChoose it when strength drives the design, or when the part sees heat.

XPS Foam CoreChoose it when weight is the constraint, or when the part is machined in volume.

5056 Aluminum Honeycomb vs XPS Foam Core: properties

5056 Aluminum HoneycombXPS Foam Core

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

1 GPa0.15 Msi
0.01 GPa0 Msi

Shear Modulus

0.6 GPa0.09 Msi
0.01 GPa8.7×10⁻⁴ Msi

Tensile Strength (Ultimate)

4 MPa0.62 ksi
0.4 MPa0.06 ksi

Yield Strength (0.2% offset)

3 MPa0.49 ksi
0.36 MPa0.05 ksi

Compressive Strength

4 MPa0.55 ksi
0.2 MPa0.03 ksi

Compressive Modulus

1 GPa0.15 Msi
0.01 GPa0 Msi

Shear Strength

2 MPa0.32 ksi
0.2 MPa0.03 ksi

Poisson's Ratio

—
0.3

Elongation at Break

—
3%

Flexural Strength

—
0.35 MPa0.05 ksi

Flexural Modulus

—
0.01 GPa0 Msi

Physical

Density and transition temperatures.

Density

0.05 g/cm³0 lb/in³
0.03 g/cm³0 lb/in³

Glass Transition (Tg)

—
100°C212 °F

Water Absorption (24 h)

—
0.1%

Water Absorption (Saturation)

—
0.5%

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

2.2 W/m·K1.3 BTU/hr·ft·°F
0.03 W/m·K0.02 BTU/hr·ft·°F

Specific Heat Capacity

900 J/kg·K0.21 BTU/lb·°F
1,400 J/kg·K0.33 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

24.1 µm/m·K13.4 µin/in·°F
70 µm/m·K38.9 µin/in·°F

Max Service Temperature (continuous)

175°C347 °F
75°C167 °F

Min Service Temperature

-200°C-328 °F
-50°C-58 °F

Limiting Oxygen Index

—
26%

Max Service Temperature (short-term)

—
85°C185 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

3.2×10⁻⁶ Ω·m126 µΩ·in
1×10¹⁴ Ω·m3.94×10²¹ µΩ·in

Dielectric Constant (1 MHz)

—
1.05

Volume Resistivity

—
1×10¹⁶ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

55 / 100
90 / 100

UV / Weathering Resistance

90 / 100
20 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

35 / 100
88 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

250 MJ/kg107,481 BTU/lb
100 MJ/kg42,992 BTU/lb

Embodied Carbon (primary production)

16.5 kg CO₂/kg
4.2 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
—

Same in both: Typical Recycled Content 10%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

86 kN·m/kg
13 kN·m/kg

Specific Stiffness (E / density)

20.6 MN·m/kg
0.4 MN·m/kg

Thermal Diffusivity

48.9 mm²/s
0.7 mm²/s

Same in both: Modulus of Resilience 6 kJ/m³ · Thermal Shock Resistance Index 0

Strength versus weight

Yield strength against density for every composite grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

1101001,000510Density (g/cm³)Yield strength (MPa) — log scale5056 Aluminum HoneycombXPS Foam Core

Manufacturing and finishing

Capability5056 Aluminum HoneycombXPS Foam Core
Default condition——
Relative cost$$$$ High$$ Standard
Min. machined wall——
Best machined surface——

5056 Aluminum Honeycomb vs XPS Foam Core — frequently asked

Is 5056 Aluminum Honeycomb stronger than XPS Foam Core?

Yes. 5056 Aluminum Honeycomb has a typical yield strength of 3 MPa (0.493 ksi) against 0.36 MPa (0.0522 ksi) for XPS Foam Core — about 9.4 times as much. Tensile strength is 4 MPa (0.624 ksi) vs 0.4 MPa (0.058 ksi).

Which is cheaper, 5056 Aluminum Honeycomb or XPS Foam Core?

XPS Foam Core is the lower-cost material: it sits in the standard tier ($$) while 5056 Aluminum Honeycomb is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, 5056 Aluminum Honeycomb or XPS Foam Core?

XPS Foam Core. Its machinability rates excellent (88/100) against fair (35/100) for 5056 Aluminum Honeycomb.

Ready to make it?

Upload a CAD file and FabDigit prices the part in 5056 Aluminum Honeycomb and XPS Foam Core side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.