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Al2TiO5 vs BeO

Ceramic · grade comparison

Al2TiO5 and BeO are both ceramic grades. BeO is the stronger of the two: tensile strength 130 MPa (18.9 ksi) against 15 MPa (2.18 ksi) for Al2TiO5, about 8.7 times as much. BeO is harder — 1,200 HV against 450 HV for Al2TiO5 — which matters for wear surfaces and threads. BeO is lighter (2.87 g/cm³ vs 3.2 g/cm³ for Al2TiO5) and BeO is stiffer (345 GPa vs 15 GPa). On the shop floor, Al2TiO5 machines more easily (poor vs not recommended).

Al2TiO5Choose it when the part is machined in volume.

BeOChoose it when strength drives the design, or when surface hardness matters.

Al2TiO5 vs BeO: properties

Al2TiO5BeO

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

15 GPa2.2 Msi
345 GPa50 Msi

Shear Modulus

6 GPa0.87 Msi
137 GPa19.9 Msi

Bulk Modulus

9 GPa1.3 Msi
240 GPa34.8 Msi

Poisson's Ratio

0.23
0.26

Tensile Strength (Ultimate)

15 MPa2.2 ksi
130 MPa18.9 ksi

Elongation at Break

0%
—

Compressive Strength

250 MPa36.3 ksi
1,550 MPa225 ksi

Flexural Strength

30 MPa4.4 ksi
200 MPa29 ksi

Fracture Toughness (K_IC)

1 MPa·√m0.91 ksi·√in
3.5 MPa·√m3.2 ksi·√in

Hardness, Vickers

450 HV
1,200 HV

Hardness, Mohs

6
9

Hardness, Knoop

—
1,200 HK

Physical

Density and transition temperatures.

Density

3.2 g/cm³0.12 lb/in³
2.87 g/cm³0.1 lb/in³

Melting Point (Solidus)

1,860°C3,380 °F
2,530°C4,586 °F

Porosity

6%
0.5%

Refractive Index

—
1.719

Thermal

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

Thermal Conductivity

1.8 W/m·K1 BTU/hr·ft·°F
275 W/m·K159 BTU/hr·ft·°F

Specific Heat Capacity

800 J/kg·K0.19 BTU/lb·°F
1,030 J/kg·K0.25 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

1 µm/m·K0.56 µin/in·°F
7 µm/m·K3.9 µin/in·°F

Max Service Temperature (continuous)

1,400°C2,552 °F
1,800°C3,272 °F

Min Service Temperature

-200°C-328 °F
-269°C-452 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10⁸ Ω·m3.94×10¹⁵ µΩ·in
1×10¹⁴ Ω·m3.94×10²¹ µΩ·in

Volume Resistivity

1×10¹⁰ Ω·cm
1×10¹⁶ Ω·cm

Dielectric Strength

—
12 kV/mm305 V/mil

Dielectric Constant (1 MHz)

—
6.7

Dissipation Factor (1 MHz)

—
3×10⁻⁴

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
82 / 100

Manufacturability

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

Machinability

25 / 100
5 / 100

Polishability

25 / 100
70 / 100

Sintering / Firing Temperature

1,500°C2,732 °F
1,650°C3,002 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

90 MJ/kg38,693 BTU/lb
450 MJ/kg193,465 BTU/lb

Embodied Carbon (primary production)

7 kg CO₂/kg
30 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
500 L/kg59.9 gal/lb

Typical Recycled Content

0%
5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

5 kN·m/kg
45 kN·m/kg

Specific Stiffness (E / density)

4.7 MN·m/kg
120.2 MN·m/kg

Thermal Diffusivity

0.7 mm²/s
93 mm²/s

Thermal Shock Resistance Index

2
15

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

CapabilityAl2TiO5BeO
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

Al2TiO5 vs BeO — frequently asked

Is BeO stronger than Al2TiO5?

Yes. BeO has a typical tensile strength of 130 MPa (18.9 ksi) against 15 MPa (2.18 ksi) for Al2TiO5 — about 8.7 times as much.

Which is cheaper, Al2TiO5 or BeO?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, Al2TiO5 or BeO?

Al2TiO5. Its machinability rates poor (25/100) against not recommended (5/100) for BeO.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Al2TiO5 and BeO 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.