Grade: Cr13Al4
1. Performance: High resistance, low coefficient of electric
resistance, high operating temperature, good corrosion resistance
under high temperature.
2. Usage: It is mainly used in electric locomotive, diesel
locomotive, metro vehicle and high speed moving car etc brake
system brake resistor, electric ceramic cooktop, industrial
furnace.
3. Diameter: 1.0-10.0mm
Other sizes are available upon your request.
Other FeCrAl Alloy: 1Cr15Al5, 0Cr21Al4, 0Cr21Al6, 0Cr23Al5,
0Cr25Al5, 0Cr21Al6Nb etc
Please email us for more detailed information.
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.