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MgO Ceramic vs SrTiO3

Ceramic · grade comparison

MgO Ceramic and SrTiO3 are both ceramic grades. SrTiO3 is harder — 690 HV against 620 HV for MgO Ceramic — which matters for wear surfaces and threads. MgO Ceramic is lighter (3.55 g/cm³ vs 5.12 g/cm³ for SrTiO3) and MgO Ceramic is stiffer (300 GPa vs 267 GPa). On the shop floor, MgO Ceramic machines more easily (poor vs not recommended) and MgO Ceramic sits in a lower cost tier (standard, $$) than SrTiO3 (high, $$$$).

MgO CeramicChoose it when weight is the constraint, or when the part sees heat.

SrTiO3Choose it when surface hardness matters.

MgO Ceramic vs SrTiO3: properties

MgO CeramicSrTiO3

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

300 GPa43.5 Msi
267 GPa38.7 Msi

Shear Modulus

128 GPa18.6 Msi
116 GPa16.8 Msi

Bulk Modulus

155 GPa22.5 Msi
174 GPa25.2 Msi

Poisson's Ratio

0.18
0.24

Tensile Strength (Ultimate)

100 MPa14.5 ksi
—

Compressive Strength

1,000 MPa145 ksi
1,100 MPa160 ksi

Flexural Strength

170 MPa24.7 ksi
110 MPa16 ksi

Fracture Toughness (K_IC)

1.6 MPa·√m1.5 ksi·√in
0.9 MPa·√m0.82 ksi·√in

Hardness, Vickers

620 HV
690 HV

Hardness, Knoop

590 HK
595 HK

Hardness, Mohs

6
6.3

Physical

Density and transition temperatures.

Density

3.55 g/cm³0.13 lb/in³
5.12 g/cm³0.18 lb/in³

Melting Point (Solidus)

2,800°C5,072 °F
2,080°C3,776 °F

Refractive Index

1.736
2.41

Porosity

2%
0%

Light Transmission

—
72%

Thermal

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

Thermal Conductivity

40 W/m·K23.1 BTU/hr·ft·°F
11.5 W/m·K6.6 BTU/hr·ft·°F

Specific Heat Capacity

935 J/kg·K0.22 BTU/lb·°F
544 J/kg·K0.13 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

13.5 µm/m·K7.5 µin/in·°F
9.4 µm/m·K5.2 µin/in·°F

Max Service Temperature (continuous)

1,700°C3,092 °F
1,200°C2,192 °F

Min Service Temperature

-200°C-328 °F
-269°C-452 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹² Ω·m3.94×10¹⁹ µΩ·in
1×10⁹ Ω·m3.94×10¹⁶ µΩ·in

Dielectric Strength

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

Dielectric Constant (1 MHz)

9.7
300

Dissipation Factor (1 MHz)

4×10⁻⁴
0.002

Volume Resistivity

1×10¹⁴ Ω·cm
1×10¹¹ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

35 / 100
80 / 100

Manufacturability

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

Machinability

22 / 100
8 / 100

Polishability

65 / 100
92 / 100

Sintering / Firing Temperature

1,700°C3,092 °F
—

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

3 kg CO₂/kg
6.5 kg CO₂/kg

Embodied Water

25 L/kg3 gal/lb
250 L/kg30 gal/lb

Typical Recycled Content

5%
0%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

84.5 MN·m/kg
52.1 MN·m/kg

Thermal Diffusivity

12.1 mm²/s
4.1 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

CapabilityMgO CeramicSrTiO3
Default condition——
Relative cost$$ Standard$$$$ High
Min. machined wall——
Best machined surface——

MgO Ceramic vs SrTiO3 — frequently asked

What is the difference between MgO Ceramic and SrTiO3?

MgO Ceramic and SrTiO3 are both ceramic grades. SrTiO3 is harder — 690 HV against 620 HV for MgO Ceramic — which matters for wear surfaces and threads. MgO Ceramic is lighter (3.55 g/cm³ vs 5.12 g/cm³ for SrTiO3) and MgO Ceramic is stiffer (300 GPa vs 267 GPa).

Which is cheaper, MgO Ceramic or SrTiO3?

MgO Ceramic is the lower-cost material: it sits in the standard tier ($$) while SrTiO3 is high ($$$$). Part price depends far more on geometry, tolerance and quantity than on raw stock — upload a CAD file for a live quote.

Which is easier to machine, MgO Ceramic or SrTiO3?

MgO Ceramic. Its machinability rates poor (22/100) against not recommended (8/100) for SrTiO3.

Ready to make it?

Upload a CAD file and FabDigit prices the part in MgO Ceramic and SrTiO3 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.