Soapstone vs Travertine
Natural Material · grade comparison
Soapstone and Travertine are both natural material grades. Soapstone is the stronger of the two: tensile strength 10 MPa (1.45 ksi) against 6 MPa (0.798 ksi) for Travertine, about 82% more. Travertine is lighter (2.45 g/cm³ vs 2.95 g/cm³ for Soapstone) and Soapstone is stiffer (60 GPa vs 42 GPa). On the shop floor, Soapstone machines more easily (excellent vs good) and Travertine sits in a lower cost tier (budget, $) than Soapstone (standard, $$).
SoapstoneChoose it when strength drives the design, or when the part sees heat.
TravertineChoose it when weight is the constraint, or when cost is the deciding factor.
Soapstone vs Travertine: 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.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Compressive Strength
Flexural Strength
Shear Strength
Fracture Toughness (K_IC)
Hardness, Knoop
Hardness, Mohs
Elongation at Break
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
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 Carbon (primary production)
Embodied Water
Same in both: Embodied Energy (primary production) 2 MJ/kg860 BTU/lb · Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Diffusivity
Same in both: 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 | Soapstone | Travertine |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$ Standard | $ Budget |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Soapstone vs Travertine — frequently asked
Is Soapstone stronger than Travertine?
Yes. Soapstone has a typical tensile strength of 10 MPa (1.45 ksi) against 6 MPa (0.798 ksi) for Travertine — about 82% more.
Which is cheaper, Soapstone or Travertine?
Travertine is the lower-cost material: it sits in the budget tier ($) while Soapstone is standard ($$). 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, Soapstone or Travertine?
Soapstone. Its machinability rates excellent (90/100) against good (62/100) for Travertine.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Soapstone and Travertine 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.