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T15K6 vs YG8

Ceramic · grade comparison

T15K6 and YG8 are both ceramic grades. YG8 is the stronger of the two: tensile strength 1,200 MPa (174 ksi) against 800 MPa (116 ksi) for T15K6, about 50% more. T15K6 is harder — 1,560 HV against 1,350 HV for YG8 — which matters for wear surfaces and threads. T15K6 is lighter (11.4 g/cm³ vs 14.7 g/cm³ for YG8) and YG8 is stiffer (600 GPa vs 520 GPa).

T15K6Choose it when surface hardness matters, or when weight is the constraint.

YG8Choose it when strength drives the design.

T15K6 vs YG8: properties

T15K6YG8

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

520 GPa75.4 Msi
600 GPa87 Msi

Shear Modulus

210 GPa30.5 Msi
245 GPa35.5 Msi

Bulk Modulus

330 GPa47.9 Msi
360 GPa52.2 Msi

Poisson's Ratio

0.23
0.22

Tensile Strength (Ultimate)

800 MPa116 ksi
1,200 MPa174 ksi

Compressive Strength

4,000 MPa580 ksi
4,500 MPa653 ksi

Flexural Strength

1,250 MPa181 ksi
2,000 MPa290 ksi

Shear Strength

850 MPa123 ksi
1,300 MPa189 ksi

Fracture Toughness (K_IC)

9.5 MPa·√m8.6 ksi·√in
14 MPa·√m12.7 ksi·√in

Hardness, Vickers

1,560 HV
1,350 HV

Hardness, Knoop

1,500 HK
1,400 HK

Hardness, Mohs

9.2
9

Same in both: Elongation at Break 0.1%

Physical

Density and transition temperatures.

Density

11.4 g/cm³0.41 lb/in³
14.7 g/cm³0.53 lb/in³

Melting Point (Solidus)

1,350°C2,462 °F
1,320°C2,408 °F

Porosity

0.06%
0.02%

Thermal

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

Thermal Conductivity

27 W/m·K15.6 BTU/hr·ft·°F
75 W/m·K43.3 BTU/hr·ft·°F

Specific Heat Capacity

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

Thermal Expansion (CTE, 20–100 °C)

6.3 µm/m·K3.5 µin/in·°F
4.8 µm/m·K2.7 µin/in·°F

Max Service Temperature (continuous)

850°C1,562 °F
600°C1,112 °F

Same in both: Min Service Temperature -200°C-328 °F

Electrical

Conductivity and insulation.

Electrical Resistivity

6×10⁻⁷ Ω·m23.6 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

55 / 100
45 / 100

Manufacturability

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

Machinability

4 / 100
5 / 100

Polishability

85 / 100
90 / 100

Sintering / Firing Temperature

1,480°C2,696 °F
1,420°C2,588 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

280 MJ/kg120,378 BTU/lb
180 MJ/kg77,386 BTU/lb

Embodied Carbon (primary production)

20 kg CO₂/kg
12 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)

70 kN·m/kg
82 kN·m/kg

Specific Stiffness (E / density)

45.6 MN·m/kg
40.8 MN·m/kg

Thermal Diffusivity

9.5 mm²/s
23.2 mm²/s

Thermal Shock Resistance Index

7
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

CapabilityT15K6YG8
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

T15K6 vs YG8 — frequently asked

Is YG8 stronger than T15K6?

Yes. YG8 has a typical tensile strength of 1,200 MPa (174 ksi) against 800 MPa (116 ksi) for T15K6 — about 50% more.

Which is cheaper, T15K6 or YG8?

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 T15K6 over YG8?

Pick T15K6 when surface hardness matters, or when weight is the constraint. Pick YG8 when strength drives the design.

Ready to make it?

Upload a CAD file and FabDigit prices the part in T15K6 and YG8 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.