Wollastonite vs Zircon
Ceramic · grade comparison
Wollastonite and Zircon are both ceramic grades. Wollastonite is the stronger of the two: tensile strength 350 MPa (50.8 ksi) against 80 MPa (11.6 ksi) for Zircon, about 4.4 times as much. Zircon is harder — 1,150 HV against 380 HV for Wollastonite — which matters for wear surfaces and threads. Wollastonite is lighter (2.87 g/cm³ vs 3.7 g/cm³ for Zircon) and Zircon is stiffer (190 GPa vs 110 GPa). On the shop floor, Wollastonite machines more easily (fair vs not recommended) and Wollastonite sits in a lower cost tier (budget, $) than Zircon (standard, $$).
WollastoniteChoose it when strength drives the design, or when weight is the constraint.
ZirconChoose it when surface hardness matters, or when the part sees heat.
Wollastonite vs Zircon: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all ceramic 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 ceramic 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)
Elongation at Break
Compressive Strength
Flexural Strength
Shear Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Mohs
Hardness, Knoop
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Refractive Index
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)
Same in both: Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Dielectric Strength
Same in both: Electrical Resistivity 1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in · Volume Resistivity 1×10¹³ Ω·cm
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
Sintering / Firing Temperature
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
Thermal Shock Resistance Index
Strength versus weight
Yield strength against density for every ceramic grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.
Manufacturing and finishing
| Capability | Wollastonite | Zircon |
|---|---|---|
| Default condition | — | — |
| Relative cost | $ Budget | $$ Standard |
| Min. machined wall | — | — |
| Best machined surface | — | — |
Wollastonite vs Zircon — frequently asked
Is Wollastonite stronger than Zircon?
Yes. Wollastonite has a typical tensile strength of 350 MPa (50.8 ksi) against 80 MPa (11.6 ksi) for Zircon — about 4.4 times as much.
Which is cheaper, Wollastonite or Zircon?
Wollastonite is the lower-cost material: it sits in the budget tier ($) while Zircon 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, Wollastonite or Zircon?
Wollastonite. Its machinability rates fair (45/100) against not recommended (5/100) for Zircon.
Ready to make it?
Upload a CAD file and FabDigit prices the part in Wollastonite and Zircon 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.