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Natural Cork vs Rawhide

Natural Material · grade comparison

Natural Cork and Rawhide are both natural material grades. Rawhide is the stronger of the two: tensile strength 70 MPa (10.2 ksi) against 1 MPa (0.16 ksi) for Natural Cork, about 64 times as much. Rawhide is the more ductile: elongation 12% versus 7% for Natural Cork. Natural Cork is lighter (0.16 g/cm³ vs 1.05 g/cm³ for Rawhide) and Rawhide is stiffer (1.2 GPa vs 0.02 GPa). On the shop floor, Natural Cork machines more easily (excellent vs fair).

Natural CorkChoose it when weight is the constraint, or when the part sees heat.

RawhideChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

Natural Cork vs Rawhide: properties

Natural CorkRawhide

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

0.02 GPa0 Msi
1.2 GPa0.17 Msi

Shear Modulus

0.01 GPa7.25×10⁻⁴ Msi
—

Bulk Modulus

0.01 GPa0 Msi
—

Poisson's Ratio

0.02
0.4

Tensile Strength (Ultimate)

1 MPa0.16 ksi
70 MPa10.2 ksi

Elongation at Break

7%
12%

Compressive Strength

1 MPa0.15 ksi
30 MPa4.4 ksi

Flexural Strength

1 MPa0.17 ksi
—

Shear Strength

0.8 MPa0.12 ksi
20 MPa2.9 ksi

Hardness, Mohs

—
2.5

Physical

Density and transition temperatures.

Density

0.16 g/cm³0.01 lb/in³
1.05 g/cm³0.04 lb/in³

Porosity

88%
12%

Thermal

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

Thermal Conductivity

0.05 W/m·K0.03 BTU/hr·ft·°F
0.17 W/m·K0.1 BTU/hr·ft·°F

Specific Heat Capacity

1,800 J/kg·K0.43 BTU/lb·°F
1,700 J/kg·K0.41 BTU/lb·°F

Max Service Temperature (continuous)

120°C248 °F
70°C158 °F

Min Service Temperature

-80°C-112 °F
-40°C-40 °F

Thermal Expansion (CTE, 20–100 °C)

—
60 µm/m·K33.3 µin/in·°F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in
1×10⁹ Ω·m3.94×10¹⁶ µΩ·in

Dielectric Strength

—
8 kV/mm203 V/mil

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

75 / 100
45 / 100

Manufacturability

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

Machinability

85 / 100
40 / 100

Polishability

10 / 100
30 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

5 MJ/kg2,150 BTU/lb
45 MJ/kg19,347 BTU/lb

Embodied Carbon (primary production)

0.3 kg CO₂/kg
12 kg CO₂/kg

Embodied Water

100 L/kg12 gal/lb
9,000 L/kg1,078 gal/lb

Typical Recycled Content

0%
100%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

7 kN·m/kg
67 kN·m/kg

Specific Stiffness (E / density)

0.1 MN·m/kg
1.1 MN·m/kg

Thermal Diffusivity

0.2 mm²/s
0.1 mm²/s

Strength versus weight

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

Manufacturing and finishing

CapabilityNatural CorkRawhide
Default condition——
Relative cost$$$ Premium$$$ Premium
Min. machined wall——
Best machined surface——

Natural Cork vs Rawhide — frequently asked

Is Rawhide stronger than Natural Cork?

Yes. Rawhide has a typical tensile strength of 70 MPa (10.2 ksi) against 1 MPa (0.16 ksi) for Natural Cork — about 64 times as much.

Which is cheaper, Natural Cork or Rawhide?

Both sit in the same relative cost tier ($$$, premium); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, Natural Cork or Rawhide?

Natural Cork. Its machinability rates excellent (85/100) against fair (40/100) for Rawhide.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Natural Cork and Rawhide 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.