FabDigitFabDigit

PbNb2O6 vs PZT

Ceramic · grade comparison

PbNb2O6 and PZT are both ceramic grades. PZT is the stronger of the two: tensile strength 75 MPa (10.9 ksi) against 25 MPa (3.63 ksi) for PbNb2O6, about 3.0 times as much. PZT is harder — 350 HV against 300 HV for PbNb2O6 — which matters for wear surfaces and threads. PbNb2O6 is lighter (5.9 g/cm³ vs 7.75 g/cm³ for PZT) and PZT is stiffer (61 GPa vs 45 GPa).

PbNb2O6Choose it when weight is the constraint, or when the part sees heat.

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

PbNb2O6 vs PZT: properties

PbNb2O6PZT

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

45 GPa6.5 Msi
61 GPa8.8 Msi

Shear Modulus

18 GPa2.6 Msi
23 GPa3.3 Msi

Poisson's Ratio

0.24
0.31

Tensile Strength (Ultimate)

25 MPa3.6 ksi
75 MPa10.9 ksi

Elongation at Break

0.05%
—

Compressive Strength

350 MPa50.8 ksi
600 MPa87 ksi

Flexural Strength

55 MPa8 ksi
85 MPa12.3 ksi

Shear Strength

35 MPa5.1 ksi
—

Fracture Toughness (K_IC)

0.9 MPa·√m0.82 ksi·√in
1 MPa·√m0.91 ksi·√in

Hardness, Vickers

300 HV
350 HV

Bulk Modulus

—
55 GPa8 Msi

Hardness, Knoop

—
330 HK

Same in both: Hardness, Mohs 5

Physical

Density and transition temperatures.

Density

5.9 g/cm³0.21 lb/in³
7.75 g/cm³0.28 lb/in³

Melting Point (Solidus)

1,350°C2,462 °F
—

Porosity

5%
1%

Thermal

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

Thermal Conductivity

1.5 W/m·K0.87 BTU/hr·ft·°F
1.3 W/m·K0.75 BTU/hr·ft·°F

Specific Heat Capacity

320 J/kg·K0.08 BTU/lb·°F
380 J/kg·K0.09 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

3.5 µm/m·K1.9 µin/in·°F
4 µm/m·K2.2 µin/in·°F

Max Service Temperature (continuous)

400°C752 °F
175°C347 °F

Min Service Temperature

-196°C-321 °F
-50°C-58 °F

Electrical

Conductivity and insulation.

Dielectric Strength

6 kV/mm152 V/mil
5 kV/mm127 V/mil

Dielectric Constant (1 MHz)

225
1,700

Dissipation Factor (1 MHz)

0.01
0.02

Same in both: Electrical Resistivity 1×10¹⁰ Ω·m3.94×10¹⁷ µΩ·in · Volume Resistivity 1×10¹² Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

65 / 100
60 / 100

Manufacturability

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

Machinability

6 / 100
8 / 100

Polishability

45 / 100
70 / 100

Sintering / Firing Temperature

1,270°C2,318 °F
1,250°C2,282 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

—
70 MJ/kg30,095 BTU/lb

Embodied Carbon (primary production)

—
5.5 kg CO₂/kg

Embodied Water

—
60 L/kg7.2 gal/lb

Typical Recycled Content

—
5%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

4 kN·m/kg
10 kN·m/kg

Specific Stiffness (E / density)

7.6 MN·m/kg
7.9 MN·m/kg

Thermal Diffusivity

0.8 mm²/s
0.4 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 scalePZT

Manufacturing and finishing

CapabilityPbNb2O6PZT
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

PbNb2O6 vs PZT — frequently asked

Is PZT stronger than PbNb2O6?

Yes. PZT has a typical tensile strength of 75 MPa (10.9 ksi) against 25 MPa (3.63 ksi) for PbNb2O6 — about 3.0 times as much.

Which is cheaper, PbNb2O6 or PZT?

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.

When should I choose PbNb2O6 over PZT?

Pick PbNb2O6 when weight is the constraint, or when the part sees heat. Pick PZT when strength drives the design, or when surface hardness matters.

Ready to make it?

Upload a CAD file and FabDigit prices the part in PbNb2O6 and PZT 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.