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Al2TiO5 vs MgO Ceramic

Ceramic · grade comparison

Al2TiO5 and MgO Ceramic are both ceramic grades. MgO Ceramic is the stronger of the two: tensile strength 100 MPa (14.5 ksi) against 15 MPa (2.18 ksi) for Al2TiO5, about 6.7 times as much. MgO Ceramic is harder — 620 HV against 450 HV for Al2TiO5 — which matters for wear surfaces and threads. Al2TiO5 is lighter (3.2 g/cm³ vs 3.55 g/cm³ for MgO Ceramic) and MgO Ceramic is stiffer (300 GPa vs 15 GPa). On the shop floor, MgO Ceramic sits in a lower cost tier (standard, $$) than Al2TiO5 (high, $$$$).

Al2TiO5Choose it when weight is the constraint.

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

Al2TiO5 vs MgO Ceramic: properties

Al2TiO5MgO Ceramic

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

15 GPa2.2 Msi
300 GPa43.5 Msi

Shear Modulus

6 GPa0.87 Msi
128 GPa18.6 Msi

Bulk Modulus

9 GPa1.3 Msi
155 GPa22.5 Msi

Poisson's Ratio

0.23
0.18

Tensile Strength (Ultimate)

15 MPa2.2 ksi
100 MPa14.5 ksi

Elongation at Break

0%
—

Compressive Strength

250 MPa36.3 ksi
1,000 MPa145 ksi

Flexural Strength

30 MPa4.4 ksi
170 MPa24.7 ksi

Fracture Toughness (K_IC)

1 MPa·√m0.91 ksi·√in
1.6 MPa·√m1.5 ksi·√in

Hardness, Vickers

450 HV
620 HV

Hardness, Knoop

—
590 HK

Same in both: Hardness, Mohs 6

Physical

Density and transition temperatures.

Density

3.2 g/cm³0.12 lb/in³
3.55 g/cm³0.13 lb/in³

Melting Point (Solidus)

1,860°C3,380 °F
2,800°C5,072 °F

Porosity

6%
2%

Refractive Index

—
1.736

Thermal

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

Thermal Conductivity

1.8 W/m·K1 BTU/hr·ft·°F
40 W/m·K23.1 BTU/hr·ft·°F

Specific Heat Capacity

800 J/kg·K0.19 BTU/lb·°F
935 J/kg·K0.22 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

1 µm/m·K0.56 µin/in·°F
13.5 µm/m·K7.5 µin/in·°F

Max Service Temperature (continuous)

1,400°C2,552 °F
1,700°C3,092 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10⁸ Ω·m3.94×10¹⁵ µΩ·in
1×10¹² Ω·m3.94×10¹⁹ µΩ·in

Volume Resistivity

1×10¹⁰ Ω·cm
1×10¹⁴ Ω·cm

Dielectric Strength

—
12 kV/mm305 V/mil

Dielectric Constant (1 MHz)

—
9.7

Dissipation Factor (1 MHz)

—
4×10⁻⁴

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

85 / 100
35 / 100

Manufacturability

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

Machinability

25 / 100
22 / 100

Polishability

25 / 100
65 / 100

Sintering / Firing Temperature

1,500°C2,732 °F
1,700°C3,092 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

90 MJ/kg38,693 BTU/lb
40 MJ/kg17,197 BTU/lb

Embodied Carbon (primary production)

7 kg CO₂/kg
3 kg CO₂/kg

Embodied Water

200 L/kg24 gal/lb
25 L/kg3 gal/lb

Typical Recycled Content

0%
5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

5 kN·m/kg
28 kN·m/kg

Specific Stiffness (E / density)

4.7 MN·m/kg
84.5 MN·m/kg

Thermal Diffusivity

0.7 mm²/s
12.1 mm²/s

Thermal Shock Resistance Index

2
1

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

CapabilityAl2TiO5MgO Ceramic
Default condition——
Relative cost$$$$ High$$ Standard
Min. machined wall——
Best machined surface——

Al2TiO5 vs MgO Ceramic — frequently asked

Is MgO Ceramic stronger than Al2TiO5?

Yes. MgO Ceramic has a typical tensile strength of 100 MPa (14.5 ksi) against 15 MPa (2.18 ksi) for Al2TiO5 — about 6.7 times as much.

Which is cheaper, Al2TiO5 or MgO Ceramic?

MgO Ceramic is the lower-cost material: it sits in the standard tier ($$) while Al2TiO5 is high ($$$$). 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 Al2TiO5 over MgO Ceramic?

Pick Al2TiO5 when weight is the constraint. Pick MgO Ceramic when strength drives the design, or when surface hardness matters.

Ready to make it?

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