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C1 vs YG3

Ceramic · grade comparison

C1 and YG3 are both ceramic grades. YG3 is harder — 1,580 HV against 1,480 HV for C1 — which matters for wear surfaces and threads. YG3 is stiffer (650 GPa vs 610 GPa) and YG3 runs hotter in service (600°C vs 550°C continuous).

YG3Choose it when surface hardness matters, or when the part sees heat.

C1 vs YG3: properties

C1YG3

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

610 GPa88.5 Msi
650 GPa94.3 Msi

Shear Modulus

245 GPa35.5 Msi
268 GPa38.9 Msi

Bulk Modulus

370 GPa53.7 Msi
385 GPa55.8 Msi

Poisson's Ratio

0.22
0.21

Compressive Strength

4,500 MPa653 ksi
6,000 MPa870 ksi

Flexural Strength

2,000 MPa290 ksi
1,200 MPa174 ksi

Shear Strength

1,200 MPa174 ksi
900 MPa131 ksi

Fracture Toughness (K_IC)

12 MPa·√m10.9 ksi·√in
8.5 MPa·√m7.7 ksi·√in

Hardness, Vickers

1,480 HV
1,580 HV

Hardness, Knoop

1,450 HK
1,500 HK

Same in both: Tensile Strength (Ultimate) 1,100 MPa160 ksi · Elongation at Break 0% · Hardness, Mohs 9

Physical

Density and transition temperatures.

Density

14.7 g/cm³0.53 lb/in³
15.1 g/cm³0.55 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
88 W/m·K50.8 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

5.2 µm/m·K2.9 µin/in·°F
4.4 µm/m·K2.4 µin/in·°F

Max Service Temperature (continuous)

550°C1,022 °F
600°C1,112 °F

Min Service Temperature

-200°C-328 °F
-196°C-321 °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

40 / 100
58 / 100

Manufacturability

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

Machinability

4 / 100
3 / 100

Polishability

85 / 100
92 / 100

Same in both: Sintering / Firing Temperature 1,420°C2,588 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

90 MJ/kg38,693 BTU/lb
250 MJ/kg107,481 BTU/lb

Embodied Carbon (primary production)

5.5 kg CO₂/kg
20 kg CO₂/kg

Embodied Water

300 L/kg35.9 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)

75 kN·m/kg
73 kN·m/kg

Specific Stiffness (E / density)

41.5 MN·m/kg
43 MN·m/kg

Thermal Diffusivity

23.2 mm²/s
27.8 mm²/s

Thermal Shock Resistance Index

26
34

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

CapabilityC1YG3
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

C1 vs YG3 — frequently asked

What is the difference between C1 and YG3?

C1 and YG3 are both ceramic grades. YG3 is harder — 1,580 HV against 1,480 HV for C1 — which matters for wear surfaces and threads. YG3 is stiffer (650 GPa vs 610 GPa) and YG3 runs hotter in service (600°C vs 550°C continuous).

Which is cheaper, C1 or YG3?

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 C1 over YG3?

Pick YG3 when surface hardness matters, or when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in C1 and YG3 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.