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MgO-dense vs TiO2 Ceramic

Ceramic · grade comparison

MgO-dense and TiO2 Ceramic are both ceramic grades. MgO-dense is the stronger of the two: tensile strength 95 MPa (13.8 ksi) against 80 MPa (11.6 ksi) for TiO2 Ceramic, about 19% more. TiO2 Ceramic is harder — 950 HV against 550 HV for MgO-dense — which matters for wear surfaces and threads. MgO-dense is lighter (3.55 g/cm³ vs 4.15 g/cm³ for TiO2 Ceramic) and MgO-dense is stiffer (300 GPa vs 250 GPa). On the shop floor, MgO-dense machines more easily (poor vs not recommended).

MgO-denseChoose it when strength drives the design, or when weight is the constraint.

TiO2 CeramicChoose it when surface hardness matters.

MgO-dense vs TiO2 Ceramic: properties

MgO-denseTiO2 Ceramic

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

300 GPa43.5 Msi
250 GPa36.3 Msi

Shear Modulus

128 GPa18.6 Msi
95 GPa13.8 Msi

Bulk Modulus

158 GPa22.9 Msi
205 GPa29.7 Msi

Poisson's Ratio

0.18
0.27

Tensile Strength (Ultimate)

95 MPa13.8 ksi
80 MPa11.6 ksi

Compressive Strength

950 MPa138 ksi
750 MPa109 ksi

Flexural Strength

170 MPa24.7 ksi
140 MPa20.3 ksi

Fracture Toughness (K_IC)

1.4 MPa·√m1.3 ksi·√in
2.5 MPa·√m2.3 ksi·√in

Hardness, Vickers

550 HV
950 HV

Hardness, Knoop

600 HK
880 HK

Hardness, Mohs

5.5
6.2

Physical

Density and transition temperatures.

Density

3.55 g/cm³0.13 lb/in³
4.15 g/cm³0.15 lb/in³

Melting Point (Solidus)

2,800°C5,072 °F
1,843°C3,349 °F

Refractive Index

1.736
2.7

Same in both: Porosity 1%

Thermal

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

Thermal Conductivity

45 W/m·K26 BTU/hr·ft·°F
7 W/m·K4 BTU/hr·ft·°F

Specific Heat Capacity

935 J/kg·K0.22 BTU/lb·°F
690 J/kg·K0.16 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

11.5 µm/m·K6.4 µin/in·°F
8 µm/m·K4.4 µin/in·°F

Max Service Temperature (continuous)

1,900°C3,452 °F
1,100°C2,012 °F

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

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in

Dielectric Strength

12 kV/mm305 V/mil
10 kV/mm254 V/mil

Dielectric Constant (1 MHz)

9.7
95

Dissipation Factor (1 MHz)

4×10⁻⁴
8×10⁻⁴

Volume Resistivity

1×10¹⁴ Ω·cm
1×10¹³ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

45 / 100
90 / 100

Manufacturability

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

Machinability

20 / 100
5 / 100

Polishability

70 / 100
80 / 100

Sintering / Firing Temperature

1,700°C3,092 °F
1,400°C2,552 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

40 MJ/kg17,197 BTU/lb
80 MJ/kg34,394 BTU/lb

Embodied Carbon (primary production)

3.2 kg CO₂/kg
6 kg CO₂/kg

Embodied Water

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

Typical Recycled Content

5%
0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

27 kN·m/kg
19 kN·m/kg

Specific Stiffness (E / density)

84.5 MN·m/kg
60.2 MN·m/kg

Thermal Diffusivity

13.6 mm²/s
2.4 mm²/s

Thermal Shock Resistance Index

1
0

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

CapabilityMgO-denseTiO2 Ceramic
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

MgO-dense vs TiO2 Ceramic — frequently asked

Is MgO-dense stronger than TiO2 Ceramic?

Yes. MgO-dense has a typical tensile strength of 95 MPa (13.8 ksi) against 80 MPa (11.6 ksi) for TiO2 Ceramic — about 19% more.

Which is cheaper, MgO-dense or TiO2 Ceramic?

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, MgO-dense or TiO2 Ceramic?

MgO-dense. Its machinability rates poor (20/100) against not recommended (5/100) for TiO2 Ceramic.

Ready to make it?

Upload a CAD file and FabDigit prices the part in MgO-dense and TiO2 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.