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Steatite vs Technical Porcelain (C110)

Ceramic · grade comparison

Steatite and Technical Porcelain (C110) are both ceramic grades. Steatite is the stronger of the two: tensile strength 60 MPa (8.7 ksi) against 28 MPa (4.06 ksi) for Technical Porcelain (C110), about 114% more. Steatite is harder — 650 HV against 600 HV for Technical Porcelain (C110) — which matters for wear surfaces and threads. Technical Porcelain (C110) is lighter (2.4 g/cm³ vs 2.8 g/cm³ for Steatite) and Steatite is stiffer (100 GPa vs 70 GPa). On the shop floor, Technical Porcelain (C110) sits in a lower cost tier (standard, $$) than Steatite (high, $$$$).

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

Technical Porcelain (C110)Choose it when weight is the constraint, or when cost is the deciding factor.

Steatite vs Technical Porcelain (C110): properties

SteatiteTechnical Porcelain (C110)

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

100 GPa14.5 Msi
70 GPa10.2 Msi

Shear Modulus

40 GPa5.8 Msi
28 GPa4.1 Msi

Bulk Modulus

67 GPa9.7 Msi
42 GPa6.1 Msi

Poisson's Ratio

0.25
0.22

Tensile Strength (Ultimate)

60 MPa8.7 ksi
28 MPa4.1 ksi

Compressive Strength

700 MPa102 ksi
450 MPa65.3 ksi

Flexural Strength

130 MPa18.9 ksi
55 MPa8 ksi

Fracture Toughness (K_IC)

1.5 MPa·√m1.4 ksi·√in
1.1 MPa·√m1 ksi·√in

Hardness, Vickers

650 HV
600 HV

Hardness, Knoop

600 HK
580 HK

Shear Strength

—
40 MPa5.8 ksi

Same in both: Elongation at Break 0% · Hardness, Mohs 7

Physical

Density and transition temperatures.

Density

2.8 g/cm³0.1 lb/in³
2.4 g/cm³0.09 lb/in³

Melting Point (Solidus)

1,450°C2,642 °F
—

Porosity

0%
0.5%

Light Transmission

—
0%

Thermal

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

Thermal Conductivity

2.5 W/m·K1.4 BTU/hr·ft·°F
1.5 W/m·K0.87 BTU/hr·ft·°F

Specific Heat Capacity

800 J/kg·K0.19 BTU/lb·°F
850 J/kg·K0.2 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8 µm/m·K4.4 µin/in·°F
5.5 µm/m·K3.1 µin/in·°F

Max Service Temperature (continuous)

1,000°C1,832 °F
900°C1,652 °F

Min Service Temperature

-200°C-328 °F
-60°C-76 °F

Electrical

Conductivity and insulation.

Dielectric Strength

12 kV/mm305 V/mil
17 kV/mm432 V/mil

Dissipation Factor (1 MHz)

0.0012
0.012

Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Dielectric Constant (1 MHz) 6 · Volume Resistivity 1×10¹⁴ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Same in both: Corrosion Resistance 85 / 100

Manufacturability

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

Machinability

8 / 100
5 / 100

Polishability

60 / 100
70 / 100

Sintering / Firing Temperature

1,300°C2,372 °F
1,280°C2,336 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

27 MJ/kg11,608 BTU/lb
22 MJ/kg9,458 BTU/lb

Embodied Carbon (primary production)

1.9 kg CO₂/kg
1.6 kg CO₂/kg

Embodied Water

45 L/kg5.4 gal/lb
15 L/kg1.8 gal/lb

Typical Recycled Content

2%
5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

21 kN·m/kg
12 kN·m/kg

Specific Stiffness (E / density)

35.7 MN·m/kg
29.2 MN·m/kg

Thermal Diffusivity

1.1 mm²/s
0.7 mm²/s

Same in both: Thermal Shock Resistance Index 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 scaleSteatite

Manufacturing and finishing

CapabilitySteatiteTechnical Porcelain (C110)
Default condition——
Relative cost$$$$ High$$ Standard
Min. machined wall——
Best machined surface——

Steatite vs Technical Porcelain (C110) — frequently asked

Is Steatite stronger than Technical Porcelain (C110)?

Yes. Steatite has a typical tensile strength of 60 MPa (8.7 ksi) against 28 MPa (4.06 ksi) for Technical Porcelain (C110) — about 114% more.

Which is cheaper, Steatite or Technical Porcelain (C110)?

Technical Porcelain (C110) is the lower-cost material: it sits in the standard tier ($$) while Steatite is high ($$$$). 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 Steatite over Technical Porcelain (C110)?

Pick Steatite when strength drives the design, or when surface hardness matters. Pick Technical Porcelain (C110) when weight is the constraint, or when cost is the deciding factor.

Ready to make it?

Upload a CAD file and FabDigit prices the part in Steatite and Technical Porcelain (C110) 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.