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TT7K12 vs YG3

Ceramic · grade comparison

TT7K12 and YG3 are both ceramic grades. TT7K12 is the more ductile: elongation 0.2% versus 0% for YG3, and YG3 is harder (1,580 HV vs 1,200 HV). TT7K12 is lighter (13.15 g/cm³ vs 15.1 g/cm³ for YG3) and YG3 is stiffer (650 GPa vs 520 GPa).

TT7K12Choose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

TT7K12 vs YG3: properties

TT7K12YG3

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

520 GPa75.4 Msi
650 GPa94.3 Msi

Shear Modulus

213 GPa30.9 Msi
268 GPa38.9 Msi

Bulk Modulus

310 GPa45 Msi
385 GPa55.8 Msi

Poisson's Ratio

0.22
0.21

Tensile Strength (Ultimate)

1,150 MPa167 ksi
1,100 MPa160 ksi

Elongation at Break

0.2%
0%

Compressive Strength

4,000 MPa580 ksi
6,000 MPa870 ksi

Flexural Strength

1,900 MPa276 ksi
1,200 MPa174 ksi

Shear Strength

1,300 MPa189 ksi
900 MPa131 ksi

Fracture Toughness (K_IC)

13.5 MPa·√m12.3 ksi·√in
8.5 MPa·√m7.7 ksi·√in

Hardness, Vickers

1,200 HV
1,580 HV

Hardness, Knoop

1,250 HK
1,500 HK

Same in both: Hardness, Mohs 9

Physical

Density and transition temperatures.

Density

13.15 g/cm³0.48 lb/in³
15.1 g/cm³0.55 lb/in³

Melting Point (Solidus)

1,300°C2,372 °F
1,320°C2,408 °F

Porosity

0.15%
0.02%

Thermal

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

Thermal Conductivity

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

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

6.5 µm/m·K3.6 µin/in·°F
4.4 µm/m·K2.4 µin/in·°F

Max Service Temperature (continuous)

800°C1,472 °F
600°C1,112 °F

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

Electrical

Conductivity and insulation.

Volume Resistivity

—
2×10⁻⁵ Ω·cm

Same in both: Electrical Resistivity 2×10⁻⁷ Ω·m7.87 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

45 / 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

Sintering / Firing Temperature

1,450°C2,642 °F
1,420°C2,588 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

320 MJ/kg137,575 BTU/lb
250 MJ/kg107,481 BTU/lb

Embodied Carbon (primary production)

28 kg CO₂/kg
20 kg CO₂/kg

Embodied Water

400 L/kg47.9 gal/lb
500 L/kg59.9 gal/lb

Typical Recycled Content

25%
30%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

87 kN·m/kg
73 kN·m/kg

Specific Stiffness (E / density)

39.5 MN·m/kg
43 MN·m/kg

Thermal Diffusivity

9.9 mm²/s
27.8 mm²/s

Thermal Shock Resistance Index

10
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

CapabilityTT7K12YG3
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

TT7K12 vs YG3 — frequently asked

What is the difference between TT7K12 and YG3?

TT7K12 and YG3 are both ceramic grades. TT7K12 is the more ductile: elongation 0.2% versus 0% for YG3, and YG3 is harder (1,580 HV vs 1,200 HV). TT7K12 is lighter (13.15 g/cm³ vs 15.1 g/cm³ for YG3) and YG3 is stiffer (650 GPa vs 520 GPa).

Which is cheaper, TT7K12 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 TT7K12 over YG3?

Pick TT7K12 when the part is bent, formed or impact-loaded, or when weight is the constraint.

Ready to make it?

Upload a CAD file and FabDigit prices the part in TT7K12 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.