FabDigitFabDigit

PZT-4 vs PZT-5H

Ceramic · grade comparison

PZT-4 and PZT-5H are both ceramic grades. PZT-4 is stiffer (70 GPa vs 60 GPa) and PZT-4 runs hotter in service (160°C vs 95°C continuous).

PZT-4Choose it when the part sees heat.

PZT-4 vs PZT-5H: properties

PZT-4PZT-5H

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

70 GPa10.2 Msi
60 GPa8.7 Msi

Shear Modulus

26 GPa3.8 Msi
23 GPa3.3 Msi

Poisson's Ratio

0.31
0.33

Elongation at Break

0.1%
—

Compressive Strength

520 MPa75.4 ksi
550 MPa79.8 ksi

Flexural Strength

85 MPa12.3 ksi
80 MPa11.6 ksi

Shear Strength

65 MPa9.4 ksi
—

Fracture Toughness (K_IC)

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

Hardness, Mohs

5
—

Same in both: Bulk Modulus 60 GPa8.7 Msi · Tensile Strength (Ultimate) 75 MPa10.9 ksi · Hardness, Vickers 320 HV · Hardness, Knoop 300 HK

Physical

Density and transition temperatures.

Porosity

1%
1.5%

Same in both: Density 7.5 g/cm³0.27 lb/in³

Thermal

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

Max Service Temperature (continuous)

160°C320 °F
95°C203 °F

Same in both: Thermal Conductivity 1.3 W/m·K0.72 BTU/hr·ft·°F · Specific Heat Capacity 350 J/kg·K0.08 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 4 µm/m·K2.2 µin/in·°F · Min Service Temperature -50°C-58 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

1×10¹¹ Ω·m3.94×10¹⁸ µΩ·in
1×10⁹ Ω·m3.94×10¹⁶ µΩ·in

Dielectric Strength

10 kV/mm254 V/mil
3 kV/mm76.2 V/mil

Dielectric Constant (1 MHz)

1,300
3,400

Dissipation Factor (1 MHz)

0.004
0.02

Volume Resistivity

1×10¹³ Ω·cm
1×10¹¹ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

65 / 100
70 / 100

Manufacturability

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

Machinability

12 / 100
6 / 100

Polishability

70 / 100
60 / 100

Sintering / Firing Temperature

1,275°C2,327 °F
1,250°C2,282 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

—
95 MJ/kg40,843 BTU/lb

Embodied Carbon (primary production)

—
6.5 kg CO₂/kg

Typical Recycled Content

—
5%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

9.3 MN·m/kg
8 MN·m/kg

Same in both: Specific Strength (UTS / density) 10 kN·m/kg · Thermal Diffusivity 0.5 mm²/s · 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 scale

Manufacturing and finishing

CapabilityPZT-4PZT-5H
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

PZT-4 vs PZT-5H — frequently asked

What is the difference between PZT-4 and PZT-5H?

PZT-4 and PZT-5H are both ceramic grades. PZT-4 is stiffer (70 GPa vs 60 GPa) and PZT-4 runs hotter in service (160°C vs 95°C continuous).

Which is cheaper, PZT-4 or PZT-5H?

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, PZT-4 or PZT-5H?

PZT-4, by a small margin. Both rate not recommended for machinability — 12/100 against 6/100 for PZT-5H.

Ready to make it?

Upload a CAD file and FabDigit prices the part in PZT-4 and PZT-5H 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.