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Electromagnetic Induction High Resistivity Anticorrosion Soft Magnetic FeCr Alloy
Anticorrosion Soft Magnetic Alloy(GB/T14986-1994)
Usage: Electromagnetic components used in oxidation environment and hydrazine environment.
1. This material is anticorrosion soft magnetic FeCr alloy.
2. With its high magnetic induction, low coercive force as well as high resistivity, it is mainly used as megnetic material in all kinds of electromagnetically operated valves in contact with corrosive medium as well as in the electro-hydraulic valve of aeroengine.
Grade & Chemical Composition (see Table 1)
Table 1 Grade & Chemical Composition
Grade |
Chemical Composition (%) |
||||||||
C≤ |
Si≤ |
Mn |
P≤ |
S≤ |
Cr |
Ni |
Ti |
Fe |
|
1J36 |
0.03 |
0.2 |
≤0.6 |
0.02 |
0.02 |
|
35.0~37.0 |
|
Balance |
1J116 |
0.2 |
≤0.6 |
15.5~16.5 |
|
|
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1J117 |
0.15 |
0.3~0.7 |
17.0~18.5 |
0.5~0.7 |
0.3~0.7 |
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Mechanical Property (see Table 2)
Table 2 Mechanical Property
Grade |
Tensile Strenght b/MPa |
Elongation, 5(%) |
Shrikage, (%) |
1J36 |
460 |
40 |
80 |
1J116 |
400 |
30 |
|
1J117 |
400 |
37 |
70 |
Physical Property (see Table3 Table 5)
Table3 Physical Property
Grade |
Density g/cm3 |
Resistivity ρ, μΩ/m |
Curie Point Tc/°C |
Hardness, HBS |
1J36 |
8.1 |
0.8 |
230±20 |
|
1J116 |
7.75 |
0.44 |
670~700 |
188(Hot Forged) |
1J117 |
7.77 |
|
670~700 |
|
Table 4 Magnetic Property
Grade |
Magnetic Induction Value in Different Magnetic Field Intensity |
Coercivity, Hc |
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B240≥ |
Br240≤ |
B800≥ |
B3200≥ |
B40r |
≤ |
|
T |
T |
T |
T |
T |
A/m |
|
1J36 |
0.08 |
0.3 |
- |
≥1.2 |
≤0.35 |
16 |
1J116 |
1 |
- |
1.1 |
1.3 |
- |
80 |
1J117 |
0.9 |
- |
1.1 |
1.25 |
- |
80 |
Note: For 1J36 alloy, temperature stability can be teted at B40 (T), if required by supplier and agreed on the contract. Its characteristic value, B40(T) and its variation are less than 20 C and 10%, respectively at 40 C, 60 C, 80 C, and 100 C.
Table 5 Magnetic Property in Different Temperature
Grade |
Temperature/°C |
μm |
B240 |
Br240 |
B3200 |
Hc |
mH/m |
T |
T |
T |
A/m |
||
1J116 |
Room Temperature |
14.8 |
1.01 |
0.75 |
|
21.2 |
100 |
16.1 |
1.00 |
0.74 |
|
19.36 |
|
200 |
17.0 |
0.98 |
0.7 |
|
18.24 |
|
1J117 |
Room Temperature |
11.4 |
0.98 |
0.72 |
1.26 |
25.6 |
100 |
12 |
0.98 |
0.70 |
1.26 |
23.2 |
|
200 |
|
0.96 |
|
|
|
|
1J36 |
0~100 |
Change rate of Magnetic Property ≤10% |
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