YG8 vs YT15
Ceramic · grade comparison
YG8 and YT15 are both ceramic grades. YG8 is the stronger of the two: tensile strength 1,200 MPa (174 ksi) against 800 MPa (116 ksi) for YT15, about 50% more. YT15 is harder — 1,780 HV against 1,350 HV for YG8 — which matters for wear surfaces and threads. YT15 is lighter (11.4 g/cm³ vs 14.7 g/cm³ for YG8) and YG8 is stiffer (600 GPa vs 520 GPa).
YG8Choose it when strength drives the design.
YT15Choose it when surface hardness matters, or when weight is the constraint.
YG8 vs YT15: 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
Shear Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Knoop
Same in both: Elongation at Break 0.1% · Hardness, Mohs 9
Physical
Density and transition temperatures.
Density
Porosity
Same in both: Melting Point (Solidus) 1,320°C2,408 °F
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
Chemical & Environmental
Corrosion and environmental resistance (0–100 scores).
Same in both: Corrosion Resistance 45 / 100
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
Typical Recycled Content
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 | YG8 | YT15 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
YG8 vs YT15 — frequently asked
Is YG8 stronger than YT15?
Yes. YG8 has a typical tensile strength of 1,200 MPa (174 ksi) against 800 MPa (116 ksi) for YT15 — about 50% more.
Which is cheaper, YG8 or YT15?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose YG8 over YT15?
Pick YG8 when strength drives the design. Pick YT15 when surface hardness matters, or when weight is the constraint.
Ready to make it?
Upload a CAD file and FabDigit prices the part in YG8 and YT15 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.