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YG20 vs YG3

Ceramic · grade comparison

YG20 and YG3 are both ceramic grades. YG20 is the stronger of the two: tensile strength 1,350 MPa (196 ksi) against 1,100 MPa (160 ksi) for YG3, about 23% more. YG20 is the more ductile: elongation 0.3% versus 0% for YG3, and YG3 is harder (1,580 HV vs 950 HV). YG20 is lighter (13.5 g/cm³ vs 15.1 g/cm³ for YG3) and YG3 is stiffer (650 GPa vs 480 GPa).

YG20Choose it when strength drives the design, or when the part is bent, formed or impact-loaded.

YG3Choose it when the part sees heat.

YG20 vs YG3: properties

YG20YG3

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

480 GPa69.6 Msi
650 GPa94.3 Msi

Shear Modulus

190 GPa27.6 Msi
268 GPa38.9 Msi

Bulk Modulus

300 GPa43.5 Msi
385 GPa55.8 Msi

Poisson's Ratio

0.23
0.21

Tensile Strength (Ultimate)

1,350 MPa196 ksi
1,100 MPa160 ksi

Elongation at Break

0.3%
0%

Compressive Strength

3,800 MPa551 ksi
6,000 MPa870 ksi

Flexural Strength

2,600 MPa377 ksi
1,200 MPa174 ksi

Shear Strength

1,400 MPa203 ksi
900 MPa131 ksi

Fracture Toughness (K_IC)

20 MPa·√m18.2 ksi·√in
8.5 MPa·√m7.7 ksi·√in

Hardness, Vickers

950 HV
1,580 HV

Hardness, Knoop

920 HK
1,500 HK

Hardness, Mohs

8.5
9

Physical

Density and transition temperatures.

Density

13.5 g/cm³0.49 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

70 W/m·K40.4 BTU/hr·ft·°F
88 W/m·K50.8 BTU/hr·ft·°F

Specific Heat Capacity

240 J/kg·K0.06 BTU/lb·°F
210 J/kg·K0.05 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

6.3 µm/m·K3.5 µin/in·°F
4.4 µm/m·K2.4 µin/in·°F

Max Service Temperature (continuous)

500°C932 °F
600°C1,112 °F

Min Service Temperature

-200°C-328 °F
-196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

2.2×10⁻⁷ Ω·m8.66 µΩ·in
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

38 / 100
58 / 100

Manufacturability

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

Machinability

5 / 100
3 / 100

Polishability

88 / 100
92 / 100

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

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

400 MJ/kg171,969 BTU/lb
250 MJ/kg107,481 BTU/lb

Embodied Carbon (primary production)

28 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)

100 kN·m/kg
73 kN·m/kg

Specific Stiffness (E / density)

35.6 MN·m/kg
43 MN·m/kg

Thermal Diffusivity

21.6 mm²/s
27.8 mm²/s

Thermal Shock Resistance Index

31
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

CapabilityYG20YG3
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

YG20 vs YG3 — frequently asked

Is YG20 stronger than YG3?

Yes. YG20 has a typical tensile strength of 1,350 MPa (196 ksi) against 1,100 MPa (160 ksi) for YG3 — about 23% more.

Which is cheaper, YG20 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 YG20 over YG3?

Pick YG20 when strength drives the design, or when the part is bent, formed or impact-loaded. Pick YG3 when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in YG20 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.