ATZ vs Mg-PSZ
Ceramic · grade comparison
ATZ and Mg-PSZ are both ceramic grades. ATZ is the stronger of the two: tensile strength 400 MPa (58 ksi) against 350 MPa (50.8 ksi) for Mg-PSZ, about 14% more. ATZ is harder — 1,400 HV against 1,120 HV for Mg-PSZ — which matters for wear surfaces and threads. ATZ is lighter (5.5 g/cm³ vs 5.75 g/cm³ for Mg-PSZ) and ATZ is stiffer (240 GPa vs 205 GPa).
ATZChoose it when strength drives the design, or when surface hardness matters.
ATZ vs Mg-PSZ: 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)
Elongation at Break
Compressive Strength
Flexural Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Knoop
Same in both: Shear Strength 350 MPa50.8 ksi · Hardness, Mohs 8.5
Physical
Density and transition temperatures.
Density
Melting Point (Solidus)
Porosity
Refractive Index
Same in both: Light Transmission 0%
Thermal
How each material carries heat and how hot it can run.
Thermal Conductivity
Specific Heat Capacity
Thermal Expansion (CTE, 20–100 °C)
Same in both: Max Service Temperature (continuous) 1,000°C1,832 °F · Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Dielectric Strength
Volume Resistivity
Same in both: Dielectric Constant (1 MHz) 24 · Dissipation Factor (1 MHz) 0.002
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.
Machinability
Polishability
Sintering / Firing Temperature
Sustainability
Primary-production footprint per kilogram.
Embodied Energy (primary production)
Embodied Carbon (primary production)
Embodied Water
Same in both: Typical Recycled Content 0%
Common Calculations
Ratios derived from the values above.
Specific Strength (UTS / density)
Specific Stiffness (E / density)
Thermal Diffusivity
Thermal Shock Resistance Index
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 | ATZ | Mg-PSZ |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
ATZ vs Mg-PSZ — frequently asked
Is ATZ stronger than Mg-PSZ?
Yes. ATZ has a typical tensile strength of 400 MPa (58 ksi) against 350 MPa (50.8 ksi) for Mg-PSZ — about 14% more.
Which is cheaper, ATZ or Mg-PSZ?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose ATZ over Mg-PSZ?
Pick ATZ when strength drives the design, or when surface hardness matters.
Ready to make it?
Upload a CAD file and FabDigit prices the part in ATZ and Mg-PSZ 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.