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YG6 vs YG8C

Ceramic · grade comparison

YG6 and YG8C are both ceramic grades. YG6 is the more ductile: elongation 0.2% versus 0% for YG8C, and YG6 is harder (1,580 HV vs 1,220 HV).

YG6Choose it when the part is bent, formed or impact-loaded.

YG6 vs YG8C: properties

YG6YG8C

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

630 GPa91.4 Msi
600 GPa87 Msi

Shear Modulus

255 GPa37 Msi
245 GPa35.5 Msi

Bulk Modulus

375 GPa54.4 Msi
360 GPa52.2 Msi

Elongation at Break

0.2%
0%

Compressive Strength

4,600 MPa667 ksi
4,300 MPa624 ksi

Flexural Strength

1,800 MPa261 ksi
2,200 MPa319 ksi

Shear Strength

1,200 MPa174 ksi
1,400 MPa203 ksi

Fracture Toughness (K_IC)

10 MPa·√m9.1 ksi·√in
15 MPa·√m13.7 ksi·√in

Hardness, Vickers

1,580 HV
1,220 HV

Hardness, Knoop

1,500 HK
1,300 HK

Same in both: Poisson's Ratio 0.22 · Tensile Strength (Ultimate) 1,100 MPa160 ksi · Hardness, Mohs 9

Physical

Density and transition temperatures.

Density

14.9 g/cm³0.54 lb/in³
14.7 g/cm³0.53 lb/in³

Porosity

0.02%
0.04%

Same in both: Melting Point (Solidus) 1,320°C2,408 °F

Thermal

How each material carries heat and how hot it can run.

Thermal Expansion (CTE, 20–100 °C)

4.5 µm/m·K2.5 µin/in·°F
5.2 µm/m·K2.9 µin/in·°F

Min Service Temperature

-196°C-321 °F
-200°C-328 °F

Same in both: Thermal Conductivity 80 W/m·K46.2 BTU/hr·ft·°F · Specific Heat Capacity 220 J/kg·K0.05 BTU/lb·°F · Max Service Temperature (continuous) 600°C1,112 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Resistivity 2×10⁻⁷ Ω·m7.87 µΩ·in · Volume Resistivity 2×10⁻⁵ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

55 / 100
45 / 100

Manufacturability

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

Machinability

5 / 100
3 / 100

Same in both: Polishability 90 / 100 · Sintering / Firing Temperature 1,420°C2,588 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

330 MJ/kg141,875 BTU/lb
320 MJ/kg137,575 BTU/lb

Embodied Carbon (primary production)

24 kg CO₂/kg
25 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
500 L/kg59.9 gal/lb

Same in both: Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

74 kN·m/kg
75 kN·m/kg

Specific Stiffness (E / density)

42.3 MN·m/kg
40.8 MN·m/kg

Thermal Diffusivity

24.4 mm²/s
24.7 mm²/s

Thermal Shock Resistance Index

31
28

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

CapabilityYG6YG8C
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

YG6 vs YG8C — frequently asked

What is the difference between YG6 and YG8C?

YG6 and YG8C are both ceramic grades. YG6 is the more ductile: elongation 0.2% versus 0% for YG8C, and YG6 is harder (1,580 HV vs 1,220 HV).

Which is cheaper, YG6 or YG8C?

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 YG6 over YG8C?

Pick YG6 when the part is bent, formed or impact-loaded.

Ready to make it?

Upload a CAD file and FabDigit prices the part in YG6 and YG8C 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.