Benchmark · 4 materials
ТТ7К12 vs YG3 vs YG6 vs YG8
Side-by-side benchmark of 4 ceramic grades.
PropertiesHow to read this table
- The best value in each row is in bold.
- Values are typical room-temperature figures for the default condition (temper / grade as listed).
- Relative cost is a market tier, not a price — it moves with region and volume.
- Confirm against the certified mill / resin datasheet before design release.
How to read this table
- The best value in each row is in bold.
- Values are typical room-temperature figures for the default condition (temper / grade as listed).
- Relative cost is a market tier, not a price — it moves with region and volume.
- Confirm against the certified mill / resin datasheet before design release.
| Property | ТТ7К12 | YG3 | YG6 | YG8 |
|---|---|---|---|---|
| Tensile strengthMPaksi | 1,150 MPa167 ksi | 1,100 MPa160 ksi | 1,100 MPa160 ksi | 1,200 MPa174 ksi |
| Elongation at break% | 0.2 % | 0 % | 0.2 % | 0.1 % |
| Elastic modulus (Young's)GPaMsi | 520 GPa75.4 Msi | 650 GPa94.3 Msi | 630 GPa91.4 Msi | 600 GPa87 Msi |
| Densityg/cm³lb/in³ | 13.15 g/cm³0.475 lb/in³ | 15.1 g/cm³0.546 lb/in³ | 14.9 g/cm³0.538 lb/in³ | 14.7 g/cm³0.531 lb/in³ |
| Hardness (HB equiv.)HB | 1200 HV | 1580 HV | 1580 HV | 1350 HV |
| Max service temp°C°F | 800 °C1,472 °F | 600 °C1,112 °F | 600 °C1,112 °F | 600 °C1,112 °F |
| Min service temp°C°F | -196 °C-321 °F | -196 °C-321 °F | -196 °C-321 °F | -200 °C-328 °F |
| Thermal conductivityW/m·KBTU/hr·ft·°F | 30 W/m·K17.3 BTU/hr·ft·°F | 88 W/m·K50.8 BTU/hr·ft·°F | 80 W/m·K46.2 BTU/hr·ft·°F | 75 W/m·K43.3 BTU/hr·ft·°F |
| Thermal expansion (CTE)µm/m·Kµin/in·°F | 6.5 µm/m·K3.6 µin/in·°F | 4.4 µm/m·K2.4 µin/in·°F | 4.5 µm/m·K2.5 µin/in·°F | 4.8 µm/m·K2.7 µin/in·°F |
| Machinability/100 | Not recommended5 / 100 | Not recommended3 / 100 | Not recommended5 / 100 | Not recommended5 / 100 |
| Relative cost | $$$$ High | $$$$ High | $$$$ High | $$$$ High |
| Processes |
Where each grade sits
One track per property; coloured markers are the compared grades, the shaded band is the ceramic family 10th–90th percentile and the tick its median.
Yield strength—
80 MPa12 ksifamily median 320 MPa46 ksi700 MPa102 ksi
Tensile strength1,150 MPa167 ksi
17 MPa2 ksifamily median 110 MPa16 ksi1,150 MPa167 ksi
Density13.15 g/cm³0.475 lb/in³
1.78 g/cm³0.064 lb/in³family median 4.82 g/cm³0.174 lb/in³14.4 g/cm³0.52 lb/in³
Hardness (HB equiv.)1,140 HB
361 HBfamily median 1,093 HB1,744 HB
Max service temp800 °C1,472 °F
150 °C302 °Ffamily median 900 °C1,652 °F1,700 °C3,092 °F
Elastic modulus (Young's)520 GPa
12.4 GPafamily median 210 GPa600 GPa
Elongation at break0.2 %
0 %family median 0 %0.3 %
Thermal conductivity30 W/m·K
1.7 W/m·Kfamily median 21 W/m·K125 W/m·K
Electrical conductivity—
< 0.001 % IACSfamily median < 0.001 % IACS< 0.001 % IACS
Machinability5 / 100
4 / 100family median 5 / 10064 / 100
Relative cost70
48family median 7070
ТТ7К12YG3YG6YG8
Strength versus weight
Manufacturing and finishing
| Capability | ТТ7К12 | YG3 | YG6 | YG8 |
|---|---|---|---|---|
| Default condition | — | — | — | — |
| Min. machined wall | — | — | — | — |
| Best machined surface | — | — | — | — |
| Heat treatments | — | — | — | — |
Typical handbook values for the default condition, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.