PC40 vs PZT-4
Ceramic · grade comparison
PC40 and PZT-4 are both ceramic grades. PZT-4 is the stronger of the two: tensile strength 75 MPa (10.9 ksi) against 30 MPa (4.35 ksi) for PC40, about 150% more. PC40 is harder — 600 HV against 320 HV for PZT-4 — which matters for wear surfaces and threads. PC40 is lighter (4.8 g/cm³ vs 7.5 g/cm³ for PZT-4) and PC40 is stiffer (150 GPa vs 70 GPa). On the shop floor, PC40 sits in a lower cost tier (premium, $$$) than PZT-4 (high, $$$$).
PC40Choose it when surface hardness matters, or when weight is the constraint.
PZT-4Choose it when strength drives the design, or when the part sees heat.
PC40 vs PZT-4: propertiesHow to read these bars
- One bar per material. A full bar is the highest value among all ceramic grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
How to read these bars
- One bar per material. A full bar is the highest value among all ceramic grades in the FabDigit library; each bar is drawn as a share of that.
- The better value (by the usual engineering direction) is in bold. Rows with no direction — density, thermal conductivity — have no bold.
- Values are typical room-temperature figures for the condition named on each card.
- Confirm against the certified mill or resin datasheet before design release.
Mechanical
Strength, stiffness, ductility and hardness at room temperature.
Elastic (Young's) Modulus
Shear Modulus
Bulk Modulus
Poisson's Ratio
Tensile Strength (Ultimate)
Compressive Strength
Flexural Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Mohs
Elongation at Break
Shear Strength
Hardness, Knoop
Physical
Density and transition temperatures.
Density
Porosity
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Max Service Temperature (continuous)
Min Service Temperature
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
Dielectric Strength
Dielectric Constant (1 MHz)
Dissipation Factor (1 MHz)
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Corrosion Resistance
Manufacturability
FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.
Polishability
Sintering / Firing Temperature
Same in both: Machinability 12 / 100
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Typical Recycled Content
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Diffusivity
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.
Manufacturing and finishing
| Capability | PC40 | PZT-4 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$ Premium | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
PC40 vs PZT-4 — frequently asked
Is PZT-4 stronger than PC40?
Yes. PZT-4 has a typical tensile strength of 75 MPa (10.9 ksi) against 30 MPa (4.35 ksi) for PC40 — about 150% more.
Which is cheaper, PC40 or PZT-4?
PC40 is the lower-cost material: it sits in the premium tier ($$$) while PZT-4 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 PC40 over PZT-4?
Pick PC40 when surface hardness matters, or when weight is the constraint. Pick PZT-4 when strength drives the design, or when the part sees heat.
Ready to make it?
Upload a CAD file and FabDigit prices the part in PC40 and PZT-4 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.