Zircadyne 702 (UNS R60702) vs Zircadyne 705 (UNS R60705)
Property comparison of Zircadyne 702 (UNS R60702) and Zircadyne 705 (UNS R60705), both refractory.
| Property | Zircadyne 702 (UNS R60702) | Zircadyne 705 (UNS R60705) | Difference |
|---|---|---|---|
| Yield strength | 128.9 MPa | 190.2 MPa | +48% |
| Tensile strength | 200.6 MPa | 299.7 MPa | +49% |
| Elongation | 49 % | 29 % | -41% |
| Elastic modulus | 80,700 MPa | 81,000 MPa | 0% |
| Shear modulus | 36,200 MPa | 34,500 MPa | -5% |
| Poisson ratio | 0.35 | 0.33 | -6% |
| Density | 6,510 kg/m³ | 6,640 kg/m³ | +2% |
| Thermal conductivity | 22 W/m·K | 17.1 W/m·K | -22% |
| Specific heat | 284.7 J/kg·K | 280.5 J/kg·K | -1% |
| Coefficient of thermal expansion | 0.000007 1/K | 0.000006 1/K | -18% |
| Melting point | 1,852 °C | 1,840 °C | -1% |
Difference is Zircadyne 705 (UNS R60705) relative to Zircadyne 702 (UNS R60702). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- R60702
- standard
- ASTM B551 / B523 / B493 / B550 / B658
- heat treatment
- Annealed
- grade
- R60705
- standard
- ASTM B551 / B523 / B493 / B550 / B658
- heat treatment
- Annealed
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