FabDigitFabDigit

YG8 vs YT5

Ceramic · grade comparison

YG8 and YT5 are both ceramic grades. YT5 is lighter (13 g/cm³ vs 14.7 g/cm³ for YG8) and YG8 is stiffer (600 GPa vs 520 GPa).

YT5Choose it when weight is the constraint, or when the part sees heat.

YG8 vs YT5: properties

YG8YT5

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

600 GPa87 Msi
520 GPa75.4 Msi

Shear Modulus

245 GPa35.5 Msi
210 GPa30.5 Msi

Bulk Modulus

360 GPa52.2 Msi
310 GPa45 Msi

Tensile Strength (Ultimate)

1,200 MPa174 ksi
—

Elongation at Break

0.1%
—

Compressive Strength

4,500 MPa653 ksi
4,300 MPa624 ksi

Flexural Strength

2,000 MPa290 ksi
1,500 MPa218 ksi

Shear Strength

1,300 MPa189 ksi
—

Fracture Toughness (K_IC)

14 MPa·√m12.7 ksi·√in
11 MPa·√m10 ksi·√in

Hardness, Knoop

1,400 HK
—

Same in both: Poisson's Ratio 0.22 · Hardness, Vickers 1,350 HV · Hardness, Mohs 9

Physical

Density and transition temperatures.

Density

14.7 g/cm³0.53 lb/in³
13 g/cm³0.47 lb/in³

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

75 W/m·K43.3 BTU/hr·ft·°F
42 W/m·K24.3 BTU/hr·ft·°F

Specific Heat Capacity

220 J/kg·K0.05 BTU/lb·°F
230 J/kg·K0.05 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

4.8 µm/m·K2.7 µin/in·°F
6.2 µm/m·K3.4 µin/in·°F

Max Service Temperature (continuous)

600°C1,112 °F
900°C1,652 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

2×10⁻⁷ Ω·m7.87 µΩ·in
3.5×10⁻⁷ Ω·m13.8 µΩ·in

Volume Resistivity

2×10⁻⁵ Ω·cm
—

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

45 / 100
40 / 100

Manufacturability

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

Polishability

90 / 100
85 / 100

Sintering / Firing Temperature

1,420°C2,588 °F
1,430°C2,606 °F

Same in both: Machinability 5 / 100

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

180 MJ/kg77,386 BTU/lb
350 MJ/kg150,473 BTU/lb

Embodied Carbon (primary production)

12 kg CO₂/kg
25 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
—

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Stiffness (E / density)

40.8 MN·m/kg
40 MN·m/kg

Thermal Diffusivity

23.2 mm²/s
14 mm²/s

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

CapabilityYG8YT5
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

YG8 vs YT5 — frequently asked

What is the difference between YG8 and YT5?

YG8 and YT5 are both ceramic grades. YT5 is lighter (13 g/cm³ vs 14.7 g/cm³ for YG8) and YG8 is stiffer (600 GPa vs 520 GPa).

Which is cheaper, YG8 or YT5?

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 YT5?

Pick YT5 when weight is the constraint, or when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in YG8 and YT5 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.