Fechral Cr23Al5Ti

Fields of application:

Cr15Al5 used in electrical furnaces as household appliances and heat treating appliances.

Technical information:

Chemical Compositions, % :
С	≤ 0,05
Cr	22 - 24
Аl	5,0 – 5,8
Si	≤ 0,5
Mn	≤ 0,3
Ni	≤ 0,6
S	≤ 0,015
P	≤ 0,030
Fe	balance
Ti	0,2-0,5
Ca	0,1
Ce	0,1

Typical Mechanical and special properties:
Tensile Strength, МPа	≤ 760
Elongation, %	≥ 12
Density, g/сm3	7,21
Curie point	~ 600 0С
Fusion temperature	1500 0С
Electrical Resistivity,Оhm_mm2/m at 20˚С	1,39
Magnetic properties	magnetic

Advantages:

• Less density – 7.280g/сm3 against 8.4 g/сm3 for Cr20Ni80, let economize till 13% on the weight;


• More high electric resistance in comparison with Cr20Ni80.


• Heat-resistances in the atmosphere: oxidative, contain sulphur and sulphide, carbonic, in hydrogen and in vacuum.

Disadvantages:

• They are inclined the creeping and the deflection at high temperatures.