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BeO Ceramic vs CeO2

Ceramic · grade comparison

BeO Ceramic and CeO2 are both ceramic grades. BeO Ceramic is harder — 1,200 HV against 600 HV for CeO2 — which matters for wear surfaces and threads. BeO Ceramic is lighter (2.87 g/cm³ vs 7.15 g/cm³ for CeO2) and BeO Ceramic is stiffer (345 GPa vs 180 GPa). On the shop floor, CeO2 sits in a lower cost tier (premium, $$$) than BeO Ceramic (high, $$$$).

BeO CeramicChoose it when surface hardness matters, or when weight is the constraint.

CeO2Choose it when cost is the deciding factor.

BeO Ceramic vs CeO2: properties

BeO CeramicCeO2

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

345 GPa50 Msi
180 GPa26.1 Msi

Shear Modulus

137 GPa19.9 Msi
70 GPa10.2 Msi

Bulk Modulus

240 GPa34.8 Msi
200 GPa29 Msi

Poisson's Ratio

0.26
0.29

Tensile Strength (Ultimate)

140 MPa20.3 ksi
—

Compressive Strength

1,550 MPa225 ksi
550 MPa79.8 ksi

Flexural Strength

235 MPa34.1 ksi
140 MPa20.3 ksi

Fracture Toughness (K_IC)

3.5 MPa·√m3.2 ksi·√in
1.5 MPa·√m1.4 ksi·√in

Hardness, Vickers

1,200 HV
600 HV

Hardness, Knoop

1,200 HK
560 HK

Hardness, Mohs

9
6

Physical

Density and transition temperatures.

Density

2.87 g/cm³0.1 lb/in³
7.15 g/cm³0.26 lb/in³

Melting Point (Solidus)

2,530°C4,586 °F
2,400°C4,352 °F

Refractive Index

1.72
2.15

Porosity

0.5%
2%

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

285 W/m·K165 BTU/hr·ft·°F
12 W/m·K6.9 BTU/hr·ft·°F

Specific Heat Capacity

1,030 J/kg·K0.25 BTU/lb·°F
360 J/kg·K0.09 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

7 µm/m·K3.9 µin/in·°F
10 µm/m·K5.6 µin/in·°F

Max Service Temperature (continuous)

1,800°C3,272 °F
1,700°C3,092 °F

Min Service Temperature

-269°C-452 °F
-200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹³ Ω·m3.94×10²⁰ µΩ·in
100,000 Ω·m3.94×10¹² µΩ·in

Dielectric Strength

12 kV/mm305 V/mil
—

Dielectric Constant (1 MHz)

6.7
23

Dissipation Factor (1 MHz)

4×10⁻⁴
—

Volume Resistivity

1×10¹⁵ Ω·cm
1×10⁷ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
80 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

5 / 100
8 / 100

Polishability

70 / 100
80 / 100

Sintering / Firing Temperature

1,650°C3,002 °F
1,550°C2,822 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

300 MJ/kg128,977 BTU/lb
220 MJ/kg94,583 BTU/lb

Embodied Carbon (primary production)

22 kg CO₂/kg
16 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
300 L/kg35.9 gal/lb

Same in both: Typical Recycled Content 5%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

120.2 MN·m/kg
25.2 MN·m/kg

Thermal Diffusivity

96.4 mm²/s
4.7 mm²/s

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.

501002005001,000234567Density (g/cm³)Yield strength (MPa) — log scale

Manufacturing and finishing

CapabilityBeO CeramicCeO2
Default condition——
Relative cost$$$$ High$$$ Premium
Min. machined wall——
Best machined surface——

BeO Ceramic vs CeO2 — frequently asked

What is the difference between BeO Ceramic and CeO2?

BeO Ceramic and CeO2 are both ceramic grades. BeO Ceramic is harder — 1,200 HV against 600 HV for CeO2 — which matters for wear surfaces and threads. BeO Ceramic is lighter (2.87 g/cm³ vs 7.15 g/cm³ for CeO2) and BeO Ceramic is stiffer (345 GPa vs 180 GPa).

Which is cheaper, BeO Ceramic or CeO2?

CeO2 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 CeO2?

Pick BeO Ceramic when surface hardness matters, or when weight is the constraint. Pick CeO2 when cost is the deciding factor.

Ready to make it?

Upload a CAD file and FabDigit prices the part in BeO Ceramic and CeO2 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.