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C2 vs YG6

Ceramic · grade comparison

C2 and YG6 are both ceramic grades. C2 is the stronger of the two: tensile strength 1,200 MPa (174 ksi) against 1,100 MPa (160 ksi) for YG6, about 9% more. In exchange, YG6 is the more ductile: elongation 0.2% versus 0% for C2.

C2Choose it when strength drives the design.

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

C2 vs YG6: properties

C2YG6

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Shear Modulus

250 GPa36.3 Msi
255 GPa37 Msi

Bulk Modulus

385 GPa55.8 Msi
375 GPa54.4 Msi

Tensile Strength (Ultimate)

1,200 MPa174 ksi
1,100 MPa160 ksi

Elongation at Break

0%
0.2%

Compressive Strength

5,800 MPa841 ksi
4,600 MPa667 ksi

Flexural Strength

2,000 MPa290 ksi
1,800 MPa261 ksi

Shear Strength

1,900 MPa276 ksi
1,200 MPa174 ksi

Hardness, Knoop

1,700 HK
1,500 HK

Same in both: Elastic (Young's) Modulus 630 GPa91.4 Msi · Poisson's Ratio 0.22 · Fracture Toughness (K_IC) 10 MPa·√m9.1 ksi·√in · Hardness, Vickers 1,580 HV · Hardness, Mohs 9

Physical

Density and transition temperatures.

Same in both: Density 14.9 g/cm³0.54 lb/in³ · 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

85 W/m·K49.1 BTU/hr·ft·°F
80 W/m·K46.2 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

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

Min Service Temperature

-200°C-328 °F
-196°C-321 °F

Same in both: 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

45 / 100
55 / 100

Manufacturability

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

Polishability

92 / 100
90 / 100

Same in both: Machinability 5 / 100 · Sintering / Firing Temperature 1,420°C2,588 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

420 MJ/kg180,568 BTU/lb
330 MJ/kg141,875 BTU/lb

Embodied Carbon (primary production)

28 kg CO₂/kg
24 kg CO₂/kg

Same in both: Embodied Water 400 L/kg47.9 gal/lb · Typical Recycled Content 30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

81 kN·m/kg
74 kN·m/kg

Thermal Diffusivity

25.9 mm²/s
24.4 mm²/s

Same in both: Specific Stiffness (E / density) 42.3 MN·m/kg · Thermal Shock Resistance Index 31

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

CapabilityC2YG6
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

C2 vs YG6 — frequently asked

Is C2 stronger than YG6?

Yes. C2 has a typical tensile strength of 1,200 MPa (174 ksi) against 1,100 MPa (160 ksi) for YG6 — about 9% more.

Which is cheaper, C2 or YG6?

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 C2 over YG6?

Pick C2 when strength drives the design. 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 C2 and YG6 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.