Iron-Cobalt-
Molybdenum Hysteresis Alloys
Representative
Grade: 2J21, 2J23, 2J25, 2J27
|
Type
|
Grade
|
Relative
Grade
|
Standard
|
|
Iron-Cobalt-
Molybdenum Hysteresis alloys
|
2J21
|
12КМ12（Russia）
|
GB/T14988-2008
|
|
2J23
|
12КМ14（Russia）
|
|
2J25
|
12КМ16（Russia）
|
|
2J27
|
Comolloy（U.S.A.）
|
Grade & Chemical Composition (See Table
1)
Table
1 Grade & Chemical Composition (Iron-Cobalt-
Molybdenum Hysteresis alloys)
|
Grade
|
Chemical Composition (%)
|
|
C≤
|
Si≤
|
P≤
|
S≤
|
Co
|
Mo
|
Mn
|
Fe
|
|
2J21
|
0.03
|
0.30
|
0.025
|
0.025
|
11.0～13.0
|
10.5～11.5
|
0.10～0.50
|
Bal
|
|
2J23
|
0.03
|
0.30
|
0.025
|
0.025
|
11.0～13.0
|
12.5～13.5
|
|
2J25
|
0.03
|
0.30
|
0.025
|
0.025
|
11.0～13.0
|
14.5～15.5
|
|
2J27
|
0.03
|
0.30
|
0.025
|
0.025
|
11.0～13.0
|
16.5～17.5
|
Physical Property (see Table 2 & Table 3)
Table 2 Physical Property (Iron-Cobalt- Molybdenum Hysteresis alloys)
|
Grade
|
Relative
Density
|
Coefficient of Expansion
|
Resistivity ρ (RT)
μΩ.cm
|
Hardness
HRC
|
Modulus of Elasticity
E/MPa
|
|
2J2l
|
8.2
|
11.24
|
35
|
35～42
|
215600
|
|
2J23
|
8.3
|
11.10
|
37
|
205800
|
|
2J25
|
8.3
|
11.18
|
42
|
205800
|
|
2J27
|
8.4
|
11.21
|
38
|
215600
|
Table 3 Magnetic
Hysteresis Property
|
Grade
|
Hμ
|
Bμ
|
Pμ
|
Kμ≥
|
|
A/m
|
T
|
W≥
|
|
2J21
|
9600～12800
|
1.0～1.3
|
2.0×10-2
|
0.46
|
|
2J23
|
14400～17600
|
1.0～1.3
|
3.0×10-2
|
0.48
|
|
2J25
|
17600～22400
|
0.9～1.2
|
3.8×10-2
|
0.50
|
|
2J27
|
2400～28800
|
0.9～1.2
|
4.7x 10-2
|
0.45
|
Usage: It is
used as motor
rotor.
Specification:
Bar/Rod/ Disk,Billet
Size Range:
*Bar--- Dia 8.0mm~Dia 32.0mm,length:≤3000mm,Condition:hot rolled,bright,
bright annealed
Dia 32.0mm~Dia 150.0mm,length:≤1300mm,Condition:hot
forging,peeled, turned, hot treated
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