Natural Cork vs SAE FA-1 Synthetic-Wool Blend Felt
Natural Material · grade comparison
Natural Cork and SAE FA-1 Synthetic-Wool Blend Felt are both natural material grades. SAE FA-1 Synthetic-Wool Blend Felt is the stronger of the two: tensile strength 1 MPa (0.203 ksi) against 1 MPa (0.16 ksi) for Natural Cork, about 27% more. SAE FA-1 Synthetic-Wool Blend Felt is the more ductile: elongation 45% versus 7% for Natural Cork. Natural Cork is lighter (0.16 g/cm³ vs 0.3 g/cm³ for SAE FA-1 Synthetic-Wool Blend Felt) and Natural Cork is stiffer (0.02 GPa vs 0 GPa).
Natural CorkChoose it when weight is the constraint, or when the part sees heat.
SAE FA-1 Synthetic-Wool Blend FeltChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.
Natural Cork vs SAE FA-1 Synthetic-Wool Blend Felt: 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.
Natural CorkSAE FA-1 Synthetic-Wool Blend Felt
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Elongation at Break
Compressive Strength
Flexural 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
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Resistivity
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.
Polishability
Same in both: Machinability 85 / 100
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)
Thermal Diffusivity
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 | Natural Cork | SAE FA-1 Synthetic-Wool Blend Felt |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Natural Cork vs SAE FA-1 Synthetic-Wool Blend Felt — frequently asked
Is SAE FA-1 Synthetic-Wool Blend Felt stronger than Natural Cork?
Yes. SAE FA-1 Synthetic-Wool Blend Felt has a typical tensile strength of 1 MPa (0.203 ksi) against 1 MPa (0.16 ksi) for Natural Cork — about 27% more.
Which is cheaper, Natural Cork or SAE FA-1 Synthetic-Wool Blend Felt?
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.
When should I choose Natural Cork over SAE FA-1 Synthetic-Wool Blend Felt?
Pick Natural Cork when weight is the constraint, or when the part sees heat. Pick SAE FA-1 Synthetic-Wool Blend Felt when strength drives the design, or when the part is bent, formed or impact-loaded.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Natural Cork and SAE FA-1 Synthetic-Wool Blend Felt 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.