C6 vs YG8
Ceramic · grade comparison
C6 and YG8 are both ceramic grades. C6 is harder — 1,500 HV against 1,350 HV for YG8 — which matters for wear surfaces and threads. C6 is lighter (11.5 g/cm³ vs 14.7 g/cm³ for YG8) and YG8 is stiffer (600 GPa vs 540 GPa).
C6Choose it when surface hardness matters, or when weight is the constraint.
C6 vs YG8: 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
Flexural Strength
Fracture Toughness (K_IC)
Hardness, Vickers
Hardness, Knoop
Tensile Strength (Ultimate)
Elongation at Break
Shear Strength
Same in both: Compressive Strength 4,500 MPa653 ksi · Hardness, Mohs 9
Physical
Density and transition temperatures.
Density
Same in both: Melting Point (Solidus) 1,320°C2,408 °F · Porosity 0.02%
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)
Same in both: Min Service Temperature -200°C-328 °F
Electrical
Conductivity and insulation.
Electrical Resistivity
Volume Resistivity
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 30%
Common Calculations
Ratios derived from the values above.
Specific Stiffness (E / density)
Thermal Diffusivity
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 | C6 | YG8 |
|---|---|---|
| Default condition | — | — |
| Relative cost | $$$$ High | $$$$ High |
| Min. machined wall | — | — |
| Best machined surface | — | — |
C6 vs YG8 — frequently asked
What is the difference between C6 and YG8?
C6 and YG8 are both ceramic grades. C6 is harder — 1,500 HV against 1,350 HV for YG8 — which matters for wear surfaces and threads. C6 is lighter (11.5 g/cm³ vs 14.7 g/cm³ for YG8) and YG8 is stiffer (600 GPa vs 540 GPa).
Which is cheaper, C6 or YG8?
Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.
When should I choose C6 over YG8?
Pick C6 when surface hardness matters, or when weight is the constraint.
Ready to make it?
Upload a CAD file and FabDigit prices the part in C6 and YG8 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.