FabDigitFabDigit

5056 Aluminum Honeycomb vs Polypropylene Honeycomb Core

Composite · grade comparison

5056 Aluminum Honeycomb and Polypropylene Honeycomb Core are both composite grades. 5056 Aluminum Honeycomb is the stronger of the two: tensile strength 4 MPa (0.624 ksi) against 0.6 MPa (0.087 ksi) for Polypropylene Honeycomb Core, about 7.2 times as much. 5056 Aluminum Honeycomb is lighter (0.05 g/cm³ vs 0.08 g/cm³ for Polypropylene Honeycomb Core) and 5056 Aluminum Honeycomb is stiffer (1 GPa vs 0.05 GPa). On the shop floor, Polypropylene Honeycomb Core machines more easily (very good vs fair) and Polypropylene Honeycomb Core sits in a lower cost tier (standard, $$) than 5056 Aluminum Honeycomb (high, $$$$).

5056 Aluminum HoneycombChoose it when strength drives the design, or when weight is the constraint.

Polypropylene Honeycomb CoreChoose it when the part is machined in volume, or when cost is the deciding factor.

5056 Aluminum Honeycomb vs Polypropylene Honeycomb Core: properties

5056 Aluminum HoneycombPolypropylene Honeycomb Core

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

1 GPa0.15 Msi
0.05 GPa0.01 Msi

Shear Modulus

0.6 GPa0.09 Msi
0.01 GPa0 Msi

Tensile Strength (Ultimate)

4 MPa0.62 ksi
0.6 MPa0.09 ksi

Yield Strength (0.2% offset)

3 MPa0.49 ksi
—

Compressive Strength

4 MPa0.55 ksi
1 MPa0.19 ksi

Compressive Modulus

1 GPa0.15 Msi
0.05 GPa0.01 Msi

Shear Strength

2 MPa0.32 ksi
0.45 MPa0.07 ksi

Physical

Density and transition temperatures.

Density

0.05 g/cm³0 lb/in³
0.08 g/cm³0 lb/in³

Melting Temperature (Tm)

—
165°C329 °F

Glass Transition (Tg)

—
-10°C14 °F

Water Absorption (24 h)

—
0.05%

Water Absorption (Saturation)

—
0.1%

Thermal

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

Thermal Conductivity

2.2 W/m·K1.3 BTU/hr·ft·°F
0.05 W/m·K0.03 BTU/hr·ft·°F

Specific Heat Capacity

900 J/kg·K0.21 BTU/lb·°F
1,800 J/kg·K0.43 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

24.1 µm/m·K13.4 µin/in·°F
100 µm/m·K55.6 µin/in·°F

Max Service Temperature (continuous)

175°C347 °F
80°C176 °F

Min Service Temperature

-200°C-328 °F
-40°C-40 °F

Heat Deflection Temp. @ 0.45 MPa

—
95°C203 °F

Heat Deflection Temp. @ 1.8 MPa

—
60°C140 °F

Vicat Softening Point (B50)

—
150°C302 °F

Limiting Oxygen Index

—
18%

Max Service Temperature (short-term)

—
110°C230 °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)

—
1.1

Volume Resistivity

—
1×10¹⁶ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

55 / 100
95 / 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
80 / 100

Mold Shrinkage

—
1.5%

Melt Flow Rate

—
3 g/10 min

Processing Melt Temperature (typ.)

—
225°C437 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

250 MJ/kg107,481 BTU/lb
80 MJ/kg34,394 BTU/lb

Embodied Carbon (primary production)

16.5 kg CO₂/kg
2.1 kg CO₂/kg

Embodied Water

1,200 L/kg144 gal/lb
60 L/kg7.2 gal/lb

Typical Recycled Content

10%
20%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

86 kN·m/kg
8 kN·m/kg

Specific Stiffness (E / density)

20.6 MN·m/kg
0.6 MN·m/kg

Thermal Diffusivity

48.9 mm²/s
0.3 mm²/s

Same in both: 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 Honeycomb

Manufacturing and finishing

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

5056 Aluminum Honeycomb vs Polypropylene Honeycomb Core — frequently asked

Is 5056 Aluminum Honeycomb stronger than Polypropylene Honeycomb Core?

Yes. 5056 Aluminum Honeycomb has a typical tensile strength of 4 MPa (0.624 ksi) against 0.6 MPa (0.087 ksi) for Polypropylene Honeycomb Core — about 7.2 times as much.

Which is cheaper, 5056 Aluminum Honeycomb or Polypropylene Honeycomb Core?

Polypropylene Honeycomb 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 Polypropylene Honeycomb Core?

Polypropylene Honeycomb Core. Its machinability rates very good (80/100) 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 Polypropylene Honeycomb 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.