Electric
resistance heating alloys posses the characteristics of high
resistance, low temperature coefficient of resistance, high
working temperature. Our company FeCrAl series and NiCr series
products are widely used in industry electric furnace, household
electrical appliance and far infrared ray device.
Main
Property Of Electric Resistance Heating Alloy
TYPE
properties
|
Cr13Al4
|
Cr21Al4
|
Cr21Al6
|
Cr25Al5
|
Cr23Al5
|
Cr21Al6Nb
|
HRE
|
NiCr8020
|
NiCr6015
|
NiCr3020
|
main
composition
%
|
Cr
|
12
~ 15
|
17
~ 21
|
19
~ 22
|
23
~ 26
|
20
~ 22
|
21
~ 23
|
23
~ 25
|
20
|
16
|
20
|
Al
|
4
~ 6
|
3
~ 4
|
5
~ 7
|
4.5~6.5
|
4.5~5.5
|
5
~ 7
|
5
~ 7
|
--
|
--
|
--
|
Fe
|
rest
|
rest
|
rest
|
rest
|
Rest
|
rest
|
rest
|
--
|
25
|
50
|
Ni
|
--
|
--
|
--
|
--
|
--
|
--
|
--
|
rest
|
rest
|
rest
|
Max.
Operating
Temperature
0C
|
950
|
1100
|
1100
|
1100
|
1100
|
1150
|
1180
|
1180
|
1150
|
1100
|
Density
g/cm3
|
7.40
|
7.35
|
7.10
|
7.10
|
7.25
|
7.10
|
7.10
|
8.35
|
8.20
|
7.90
|
Resistivity
(200C) μΩ.m
|
1.25
|
1.23
|
1.42
|
1.42
|
1.35
|
1.43
|
1.45
|
1.09
|
1.11
|
1.05
|
Melting
point
0C
|
1450
|
1500
|
1500
|
1500
|
1500
|
1510
|
1510
|
1400
|
1400
|
1390
|
Tensile
Strength MPa
|
750
|
750
|
750
|
750
|
750
|
750
|
750
|
750
|
750
|
750
|
Elongation
%
|
16
|
16
|
16
|
16
|
16
|
16
|
16
|
20
|
20
|
20
|
|