Cork Composition (Cork-Rubber) vs Vegetable-Tanned Leather
Natural Material · grade comparison
Cork Composition (Cork-Rubber) and Vegetable-Tanned Leather are both natural material grades. Vegetable-Tanned Leather is the stronger of the two: tensile strength 22 MPa (3.19 ksi) against 2 MPa (0.305 ksi) for Cork Composition (Cork-Rubber), about 10 times as much. Vegetable-Tanned Leather is the more ductile: elongation 30% versus 12% for Cork Composition (Cork-Rubber). Cork Composition (Cork-Rubber) is lighter (0.75 g/cm³ vs 0.92 g/cm³ for Vegetable-Tanned Leather) and Vegetable-Tanned Leather is stiffer (0.25 GPa vs 0.03 GPa). On the shop floor, Cork Composition (Cork-Rubber) machines more easily (excellent vs good) and Cork Composition (Cork-Rubber) sits in a lower cost tier (premium, $$$) than Vegetable-Tanned Leather (high, $$$$).
Cork Composition (Cork-Rubber)Choose it when weight is the constraint, or when the part sees heat.
Vegetable-Tanned LeatherChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Cork Composition (Cork-Rubber) vs Vegetable-Tanned Leather: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all natural material grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all natural material grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Cork Composition (Cork-Rubber)Vegetable-Tanned Leather
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Shear Strength
Physical
Density and transition temperatures.
Density
Porosity
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Machinability
Polishability
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Same in both: Thermal Diffusivity 0.1 mm²/s · Thermal Shock Resistance Index 0
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
| Capability | Cork Composition (Cork-Rubber) | Vegetable-Tanned Leather |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Cork Composition (Cork-Rubber) vs Vegetable-Tanned Leather — frequently asked
Is Vegetable-Tanned Leather stronger than Cork Composition (Cork-Rubber)?
Yes. Vegetable-Tanned Leather has a typical tensile strength of 22 MPa (3.19 ksi) against 2 MPa (0.305 ksi) for Cork Composition (Cork-Rubber) — about 10 times as much.
Which is cheaper, Cork Composition (Cork-Rubber) or Vegetable-Tanned Leather?
Cork Composition (Cork-Rubber) is the lower-cost material: it sits in the premium tier ($$$) while Vegetable-Tanned Leather 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, Cork Composition (Cork-Rubber) or Vegetable-Tanned Leather?
Cork Composition (Cork-Rubber). Its machinability rates excellent (85/100) against good (60/100) for Vegetable-Tanned Leather.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Cork Composition (Cork-Rubber) and Vegetable-Tanned Leather 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.