Iiron-Chrome-Aluminium resistance electrical heating alloy has such specialties as high resistivity, small resistance temperature quotiety and high use temperqture. Under high temperature, with good corrosion stability, it is especially applicable to work in the air with sulfur and sulfide. The price is reasonable, so it is the ideal heating material used for industrial electric stove, household appliances and far-infrared devices.
Main Technical Performance
1Cr1
3Al4
1Cr2
1Al4
0Cr2
1Al6
0Cr2
3Al5
0Cr2
5Al5
0Cr21
Al6Nb
0Cr27
Al7Mo2
Main Chemical Elements %
Cr
12.0
--15.0
17.0
--21.0
19.0
--22.0
20.5
--23.5
23.0
--26.0
21.0
--23.0
26.5
--27.8
Al
4.0--
6.0
2.0--4.0
5.0--7.0
4.2--5.3
4.5--6.5
5.0--7.0
6.0--7.0
Fe
ALW
ALW
ALW
ALW
ALW
ALW
ALW
Re
ALW
ALW
ALW
ALW
ALW
ALW
ALW
Add-on
Nb：0.5
Add-on
Mo：1.8
--2.2
Highesr Tempe
rature
℃
950
1100
1250
1250
1250
1350
1400
Melting Point
℃≈
1450
1500
1500
1500
1500
1510
1520
Density
g/cm3
7.40
7.35
7.16
7.25
7.10
7.10
7.10
Resistivity
μΩ.m,20℃
1.25
±0.08
1.23
±0.06
1.42
±
0.07
1.35
±0.06
1.42
±0.07
1.45
±0.07
1.53
±0.07
Tensile Strength
Mpa
588--
735
637--784
637--784
637--784
637--784
637--784
686--784
Expansion %
≥16
≥12
≥12
≥12
≥12
≥12
≥10
bend degree
≥5
≥5
≥5
≥5
≥5
≥5
≥5
celerity life
h/℃
_
≥80/
1250
≥80/
1300
≥80/
1300
≥80/
1300
≥50/
1350
≥50/
1350
Specific Heat
J/g.℃
0.490
0.490
0.520
0.460
0.494
0.494
0.494
Thermal Conductivity
KJ/m.h.℃
52.7
46.9
63.2
60.2
46.1
46.1
45.2
Coefficient Of Linear Extensibility
( COLE)
α×10 -6 /℃ (20~
1000℃)
