FeCrAl Cr15Al5 wire bar strip

Overview

Cr15Al5 iron-chromium-aluminum alloy has broad application prospects in high-temperature heating and corrosive environments due to its excellent high-temperature performance and oxidation resistance.

Limiting Chemical Composition, %

Chromium..............................................................................................................................................................................15.0--17.0 

Aluminum..................................................................................................................................................................................4.0--6.0

Carbon.....................................................................................................................................................................................0.15 Max.

Silicon.........................................................................................................................................................................................1.0 Max.

Manganese...............................................................................................................................................................................1.0 Max.

Phosphorus........................................................................................................................................................................... 0.03 Max.

Sulfur........................................................................................................................................................................................0.03 Max.

Iron...............................................................................................................................................................................................Balance.

 Physical Constants

Density: Approximately 7.10 g/cm³.

Resistivity: At 20℃, it is 1.35 μΩ·m.

Maximum operating temperature: up to 1250℃.

Characteristic

Excellent oxidation resistance: Cr15Al5 alloy can form a stable alumina layer at high temperatures to protect the matrix from oxidation.
High resistivity: suitable for the manufacture of resistance components, such as electric heating wires.
Good mechanical properties: maintain good mechanical strength at high temperatures.

Corrosion Resistance

Oxidation resistance: A dense protective layer of alumina can be formed at high temperatures to prevent further oxidation of the material.
Corrosion resistance: It shows good corrosion resistance in high temperature environments, especially in atmospheres containing sulfur and sulfide

Application

Industrial heating equipment: widely used in industrial furnaces, electric heating elements, etc.
Household appliances: Used for heating elements in electric heaters, electric blankets and other household appliances.
Nuclear energy field: Due to its excellent high-temperature oxidation resistance and corrosion resistance, it is also considered for use in some components of nuclear reactors.