BeO Ceramic vs Y2O3
Ceramic · grade comparison
BeO Ceramic and Y2O3 are both ceramic grades. BeO Ceramic is harder — 1,200 HV against 700 HV for Y2O3 — which matters for wear surfaces and threads. BeO Ceramic is lighter (2.87 g/cm³ vs 5.01 g/cm³ for Y2O3) and BeO Ceramic is stiffer (345 GPa vs 165 GPa). On the shop floor, Y2O3 sits in a lower cost tier (premium, $$$) than BeO Ceramic (high, $$$$).
BeO CeramicChoose it when surface hardness matters, or when weight is the constraint.
Y2O3Choose it when the part sees heat, or when cost is the deciding factor.
BeO Ceramic vs Y2O3: 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)
Compressive Strength
Flexural Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Knoop
Hardness, Mohs
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Refractive Index
Light Transmission
Same in both: Porosity 0.5%
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 -269°C-452 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Volume Resistivity
Same in both: Dielectric Strength 12 kV/mm305 V/mil
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 Water
Same in both: Embodied Carbon (primary production) 22 kg CO₂/kg · Typical Recycled Content 5%
Common Calculations
Ratios derived from the values above.
Specific Stiffness (E / density)
Thermal Diffusivity
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 | BeO Ceramic | Y2O3 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$ Premium |
| Min. machined wall | — | — |
| Best machined surface | — | — |
BeO Ceramic vs Y2O3 — frequently asked
What is the difference between BeO Ceramic and Y2O3?
BeO Ceramic and Y2O3 are both ceramic grades. BeO Ceramic is harder — 1,200 HV against 700 HV for Y2O3 — which matters for wear surfaces and threads. BeO Ceramic is lighter (2.87 g/cm³ vs 5.01 g/cm³ for Y2O3) and BeO Ceramic is stiffer (345 GPa vs 165 GPa).
Which is cheaper, BeO Ceramic or Y2O3?
Y2O3 is the lower-cost material: it sits in the premium tier ($$$) while BeO Ceramic is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.
When should I choose BeO Ceramic over Y2O3?
Pick BeO Ceramic when surface hardness matters, or when weight is the constraint. Pick Y2O3 when the part sees heat, or when cost is the deciding factor.
Ready to make it?
Upload a CAD file and FabDigit prices the part in BeO Ceramic and Y2O3 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.