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YG3 vs YW2

Ceramic · grade comparison

YG3 and YW2 are both ceramic grades. YG3 is the stronger of the two: tensile strength 1,100 MPa (160 ksi) against 1,000 MPa (145 ksi) for YW2, about 10% more. YG3 is harder — 1,580 HV against 1,450 HV for YW2 — which matters for wear surfaces and threads. YW2 is lighter (13 g/cm³ vs 15.1 g/cm³ for YG3) and YG3 is stiffer (650 GPa vs 540 GPa).

YG3Choose it when strength drives the design, or when surface hardness matters.

YW2Choose it when weight is the constraint, or when the part sees heat.

YG3 vs YW2: properties

YG3YW2

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

650 GPa94.3 Msi
540 GPa78.3 Msi

Shear Modulus

268 GPa38.9 Msi
215 GPa31.2 Msi

Bulk Modulus

385 GPa55.8 Msi
330 GPa47.9 Msi

Poisson's Ratio

0.21
0.22

Tensile Strength (Ultimate)

1,100 MPa160 ksi
1,000 MPa145 ksi

Compressive Strength

6,000 MPa870 ksi
4,300 MPa624 ksi

Flexural Strength

1,200 MPa174 ksi
1,400 MPa203 ksi

Shear Strength

900 MPa131 ksi
780 MPa113 ksi

Fracture Toughness (K_IC)

8.5 MPa·√m7.7 ksi·√in
10.5 MPa·√m9.6 ksi·√in

Hardness, Vickers

1,580 HV
1,450 HV

Hardness, Knoop

1,500 HK
1,420 HK

Same in both: Elongation at Break 0% · Hardness, Mohs 9

Physical

Density and transition temperatures.

Density

15.1 g/cm³0.55 lb/in³
13 g/cm³0.47 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

88 W/m·K50.8 BTU/hr·ft·°F
30 W/m·K17.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

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

Max Service Temperature (continuous)

600°C1,112 °F
900°C1,652 °F

Same in both: Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

2×10⁻⁷ Ω·m7.87 µΩ·in
3.5×10⁻⁷ Ω·m13.8 µΩ·in

Volume Resistivity

2×10⁻⁵ Ω·cm
3.5×10⁻⁵ Ω·cm

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

58 / 100
50 / 100

Manufacturability

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

Machinability

3 / 100
5 / 100

Polishability

92 / 100
85 / 100

Sintering / Firing Temperature

1,420°C2,588 °F
1,430°C2,606 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

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

Embodied Carbon (primary production)

20 kg CO₂/kg
30 kg CO₂/kg

Embodied Water

500 L/kg59.9 gal/lb
300 L/kg35.9 gal/lb

Typical Recycled Content

30%
25%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

73 kN·m/kg
77 kN·m/kg

Specific Stiffness (E / density)

43 MN·m/kg
41.5 MN·m/kg

Thermal Diffusivity

27.8 mm²/s
9.2 mm²/s

Thermal Shock Resistance Index

34
9

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

CapabilityYG3YW2
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

YG3 vs YW2 — frequently asked

Is YG3 stronger than YW2?

Yes. YG3 has a typical tensile strength of 1,100 MPa (160 ksi) against 1,000 MPa (145 ksi) for YW2 — about 10% more.

Which is cheaper, YG3 or YW2?

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 YG3 over YW2?

Pick YG3 when strength drives the design, or when surface hardness matters. Pick YW2 when weight is the constraint, or when the part sees heat.

Ready to make it?

Upload a CAD file and FabDigit prices the part in YG3 and YW2 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.