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YG8 vs YG8C

Ceramic · grade comparison

YG8 and YG8C are both ceramic grades. YG8 is the stronger of the two: tensile strength 1,200 MPa (174 ksi) against 1,100 MPa (160 ksi) for YG8C, about 9% more. YG8 is the more ductile: elongation 0.1% versus 0% for YG8C, and YG8 is harder (1,350 HV vs 1,220 HV).

YG8Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

YG8 vs YG8C: properties

YG8YG8C

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,200 MPa174 ksi
1,100 MPa160 ksi

Elongation at Break

0.1%
0%

Compressive Strength

4,500 MPa653 ksi
4,300 MPa624 ksi

Flexural Strength

2,000 MPa290 ksi
2,200 MPa319 ksi

Shear Strength

1,300 MPa189 ksi
1,400 MPa203 ksi

Fracture Toughness (K_IC)

14 MPa·√m12.7 ksi·√in
15 MPa·√m13.7 ksi·√in

Hardness, Vickers

1,350 HV
1,220 HV

Hardness, Knoop

1,400 HK
1,300 HK

Same in both: Elastic (Young's) Modulus 600 GPa87 Msi · Shear Modulus 245 GPa35.5 Msi · Bulk Modulus 360 GPa52.2 Msi · Poisson's Ratio 0.22 · Hardness, Mohs 9

Physical

Density and transition temperatures.

Porosity

0.02%
0.04%

Same in both: Density 14.7 g/cm³0.53 lb/in³ · Melting Point (Solidus) 1,320°C2,408 °F

Thermal

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

Thermal Conductivity

75 W/m·K43.3 BTU/hr·ft·°F
80 W/m·K46.2 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

4.8 µm/m·K2.7 µin/in·°F
5.2 µm/m·K2.9 µin/in·°F

Same in both: Specific Heat Capacity 220 J/kg·K0.05 BTU/lb·°F · Max Service Temperature (continuous) 600°C1,112 °F · Min Service Temperature -200°C-328 °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).

Same in both: Corrosion Resistance 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)

180 MJ/kg77,386 BTU/lb
320 MJ/kg137,575 BTU/lb

Embodied Carbon (primary production)

12 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)

82 kN·m/kg
75 kN·m/kg

Thermal Diffusivity

23.2 mm²/s
24.7 mm²/s

Thermal Shock Resistance Index

31
28

Same in both: Specific Stiffness (E / density) 40.8 MN·m/kg

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

CapabilityYG8YG8C
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

YG8 vs YG8C — frequently asked

Is YG8 stronger than YG8C?

Yes. YG8 has a typical tensile strength of 1,200 MPa (174 ksi) against 1,100 MPa (160 ksi) for YG8C — about 9% more.

Which is cheaper, YG8 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 YG8 over YG8C?

Pick YG8 when strength drives the design, or when the part is bent, formed or impact-loaded.

Ready to make it?

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