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| Properties/Grade | Cr13Al4 | |
| Main Chemical composition(%) | Cr | 12.0-15.0 |
| Al | 4.0-6.0 | |
| Fe | Balance | |
| Re | opportune | |
| Max. continuous service temp. of element | 950 | |
| Resistivity at 20oC (μ Ω · m) | 1.25+-0.08 | |
| Density (g/cm3) | 7.4 | |
| Thermal conductivity(KJ/m· h· oC) | 52.7 | |
| Coefficient of lines expansion(α × 10-6/oC) | 15.4 | |
| Melting point (approx. )( oC) | 1450 | |
| Elongation at rupture (%) | ≥ 16 | |
| Micrographic structure | Ferrite | |
| Magnetic properties | magnetic | |
EFFECT OF COLD WORK
Cold working Cr13Al4 leads to a rapid increase in yield and tensile strength and an accompanying loss of ductility. With 10% cold reduction, elongation falls below 10% and yield strength approaches 100 ksi. (690 MPa).
The work hardening rate of Cr13Al4 is below that of carbon steel and austenitic stainless alloys. The n-Value or work hardening coefficient (measured between 10% strain and the ultimate strength) typically falls in the range of 0.145 - 0.170.
HIGH TEMPERATURE TENSILE PROPERTIES
Strength properties for Cr13Al4 decrease with heating showing a rapid decline once temperatures exceed 800 °F (427 °C). Conversely, elongation values remain reasonably unchanged up to 1200 °F (649 °C), but show a rapid increase at higher temperatures.
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