0Cr27Al7Mo2 FeCrAl Alloy for Electrical Heating Elements and Industrial Furnaces
0Cr27Al7Mo2 FeCrAl Alloy for Electrical Heating Elements and Industrial Furnaces
0Cr27Al7Mo2
Iron-chromium-aluminium (FeCrAl) alloys
FeCrAl alloys are characterized by excellent oxidation resistance and very good form stability resulting in long element life.
They are typically used in electrical heating elements in industrial furnaces and home appliances.
Fe-Cr-Al alloy with high resistivity and serviceability temperature than that for NiCr alloy and also has lower price.
Forms:wire, bar, strip,sheet/plate,forging,tube/pipe,etc.
Main technical characteristics of FeCrAl Alloy:
|
Brand Property |
1Cr13Al4 |
1Cr21Al4 |
0Cr21Al6 |
0Cr23Al5 |
0Cr25Al5 |
0Cr21Al6Nb |
0Cr27Al7Mo2 |
|
|
Major chemical component% |
Cr |
12.0-12.5 |
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 |
Balance |
Balance |
Balance |
Balance |
Balance |
Balance |
Balance |
|
|
Re |
Appro priate |
Appro priate |
Appro priate |
Appro priate |
Appro priate |
Appro priate |
Appro priate |
|
|
|
|
|
|
|
|
Addition Nb:0.5 |
Addition Mo:1.8-2.2 |
|
|
Component max. use temperature |
950 |
1100 |
1250 |
1250 |
1250 |
1350 |
1400 |
|
|
Melting Point |
1450 |
1500 |
1500 |
1500 |
1500 |
1510 |
1510 |
|
|
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 |
1.45±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 |
684-784 |
|
|
Extension rate% |
16 |
12 |
12 |
|
12 |
12 |
10 |
|
|
Repeated bending frequency |
|
|
5 |
5 |
5 |
5 |
5 |
|
|
Fast lift h/ |
- |
|
|
80/1300 |
80/1300 |
|
50/1350 |
|
|
Specific Heat J/g. |
0.490 |
0.490 |
0.520 |
0.460 |
0.494 |
0.494 |
0.494 |
|
|
Heat Conduction Coefficient KJ/M.h |
52.7 |
46.9 |
63.2 |
60.1 |
46.1 |
46.1 |
45.2 |
|
|
Linear expansion coefficient aX10-6/ (20-1000) |
15.4 |
13.5 |
14.7 |
15.0 |
16.0 |
16.0 |
16.0 |
|
|
Hardness HB |
200-260 |
200-260 |
200-260 |
200-260 |
200-260 |
200-260 |
200-260 |
|
|
Microstructure |
Ferritic |
Ferritic |
Ferritic |
Ferritic |
Ferritic |
Ferritic |
Ferritic |
|
|
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
Magnetic |
|
.
0Cr27Al7Mo2
Chemical Content, %
|
C |
P |
S |
Mn |
Si |
Cr |
Ni |
Al |
Fe |
Other |
|
|
Max |
||||||||||
|
0.05 |
0.025 |
0.020 |
0.20 |
≤0.4 |
26.5-27.8 |
≤0.60 |
6.0-7.0 |
Balance |
- |
|
Mechanical Properties
|
Max Continuous Service Temperature: Resisivity 20℃: Density: Thermal Conductivity: Coefficient of Thermal Expansion: Melting Point: Elongation: Micrographic Structure: Magnetic Property: |
1400℃ 1.53+/-0.07ohm mm2/m 7.1g/cm3 46.1 KJ/m·h·℃ 16.0×10-6/℃ (20℃~1000℃) 1520℃ Min 12% Ferrite magnetic |
Temperature Factor of Electrical Resistivity
|
20℃ |
100℃ |
200℃ |
300℃ |
400℃ |
500℃ |
600℃ |
|
1.000 |
0.992 |
0.986 |
0.981 |
0.978 |
0.976 |
0.974 |
|
|
||||||
|
700℃ |
800℃ |
900℃ |
1000℃ |
1100℃ |
1200℃ |
1300℃ |
|
0.972 |
0.970 |
0.969 |
0.968 |
0.968 |
0.967 |
0.967 |
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