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OCr21Al4(Iron-Chrome-Aluminum Heating Wire)
Iron-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.
Design Parameters
|
| |
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£º0.5 |
Add-on
Mo£º1.8
~2.2 |
|
Highesr Tempe
rature
¡æ |
950 |
1100 |
1250 |
1250 |
1250 |
1350 |
1400 |
| Melting Point ¡æ¡Ö |
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 ¦Ì¦¸.m,20¡æ |
1.25
¡À0.08 |
1.23
¡À0.06 |
1.42
¡À0.07 |
1.35
¡À0.06 |
1.42
¡À0.07 |
1.45
¡À0.07 |
1.53
¡À0.07 |
Tensile Strength
Mpa |
588~
735 |
637~784 |
637~784 |
637~784 |
637~784 |
637~784 |
686~784 |
| Expansion % |
¡Ý16 |
¡Ý12 |
¡Ý12 |
¡Ý12 |
¡Ý12 |
¡Ý12 |
¡Ý10 |
| bend degree |
¡Ý5 |
¡Ý5 |
¡Ý5 |
¡Ý5 |
¡Ý5 |
¡Ý5 |
¡Ý5 |
celerity life
h/¡æ |
_ |
¡Ý80/1250 |
¡Ý80/1300 |
¡Ý80/1300 |
¡Ý80/1300 |
¡Ý50/1350 |
¡Ý50/1350 |
Specific Heat
J/g.¡æ |
0.490 |
0.490 |
0.520 |
0.460 |
0.494 |
0.494 |
0.494 |
Thermal Conductivity
KJ/m.h.¡æ |
52.7 |
46.9 |
63.2 |
60.2 |
46.1 |
46.1 |
45.2 |
Coefficient Of Linear Extensibility
¦Á¡Á10-6/¡æ (20~
1000¡æ) |
15.4 |
13.5 |
14.7 |
15.0 |
16.0 |
16.0 |
16.0 |
rigidity
HB |
200~260 |
200~260 |
200~260 |
200~260 |
200~260 |
200~260 |
200~260 |
| emerg eorganise |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
Ferrite |
| Magnetism |
Magnetism |
Magnetism |
Magnetism |
Magnetism |
Magnetism |
Magnetism |
Magnetism | |
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