DESCRIPTION
Permalloy 80 is a highly magnetic nickel-molybdenum-iron alloy, with roughly 80% nickel and 16% iron and 4% molybdenum content. It's useful as a magnetic core material in electrical and electronic equipment.
APPLICATION
Electro-magnetic shielding, specialty transformer laminations,toroidal tape wound cores, high quality motor laminations, stepping motors
CROSS REFERENCE
|
Composition
|
Russia
|
U.S.A.
|
Japan
|
|
Ni79Mo4
|
79HM
|
Mumeta
|
PC
|
|
|
|
TYPICAL CHEMISTRY
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Grade
|
Chemical Composition (%)
|
|
|
C
|
P
|
S
|
Mn
|
Si
|
Cu
|
Mo
|
Ni
|
Fe
|
|
|
|
|
|
|
Mumtea
|
0.03
|
0.020
|
0.020
|
0.6-1.1
|
0.30-0.50
|
0.20
|
3.80-4.10
|
78.0-80.0
|
Balance
|
|
|
|
AC Magnetic properties for strip(Min Value)
|
Thickness/mm
|
The peak for the magnetic field strength is 0.1A/m,Under different frequencies of flexible magnetic permeability μМ/(mH/M)
|
|
|
60HZ
|
400HZ
|
1KHZ
|
10KHZ
|
|
0.02
|
|
|
17.5
|
12.5
|
|
0.05
|
|
|
18.8
|
9.4
|
|
0.10
|
|
22.5
|
15
|
|
|
0.20
|
|
12.5
|
7.5
|
|
|
0.35
|
25
|
8.8
|
|
|
Coefficient of Linear Expansion at different temperature/(x10-6/k)
|
Temp
|
Value
|
|
20-100℃
|
1.3-10.8
|
|
20~200℃
|
10.9-11.2
|
|
20-300℃
|
14.4-12.9
|
|
20-400℃
|
11.9-12.5
|
|
20-500℃
|
12.3-13.2
|
|
20-600℃
|
12.7-13.4
|
|
20-700℃
|
13.1-13.6
|
|
20-800℃
|
13.4-13.6
|
|
20-900℃
|
15.5-15.6
|
Mechanical Property
|
resisitivityμΩm
|
0.55
|
|
Desinty
|
8.6
|
|
Curie
|
450
|
|
High saturated magneto-striction coefficientλθ/10-6
|
2
|
|
Brinell hardness HBS
|
Un-annealed
|
210
|
|
|
Annealed
|
120
|
|
OB tensile strength MPa
|
Un-annealed
|
1030
|
|
|
Annealed
|
560
|
|
Os Yield strength MPa
|
Un-annealed
|
980
|
|
|
Annealed
|
150
|
|
Elongation
|
Un-annealed
|
3
|
|
|
Annealed
|
50
|
Mamagnetic Property (Cold rolling strip)
|
Magnetic Property(Cold Rolling Strip)
|
|
(δ&D)/mm
|
μ0.08/(mH/m)≥
|
μm/(mH/m)≥
|
Bs/T≥
|
Hc/(A/m)≤
|
|
0.005
|
112.5
|
44.0
|
0.75
|
6.4
|
|
0.01
|
17.5
|
87.5
|
0.75
|
4.8
|
|
0.02-0.04
|
20.5
|
112.5
|
0.75
|
4.0
|
|
0.05-0.09
|
22.5
|
137.0
|
0.75
|
2.8
|
|
0.10-0.19
|
25.5
|
162.5
|
0.75
|
2.0
|
|
0.20-0.34
|
28.5
|
225.0
|
0.75
|
1.6
|
|
0.35-1.00
|
30.5
|
250.0
|
0..75
|
1.2
|
|
1.10-2.50
|
27.5
|
225.0
|
0.75
|
1.6
|
|
2.5-3.00
|
26.5
|
187.5
|
0.75
|
2.0
|
|
I, II Condition : Cold Rolling Stip
|
|
0.02-0.04
|
22.5
|
125.0
|
0.75
|
2.4
|
|
0.05-0.09
|
25.0
|
150.0
|
0.75
|
2.0
|
|
0.10-0.19
|
27.5
|
187.5
|
0.75
|
11.6
|
|
0.20-0.34
|
31.3
|
250.0
|
0.75
|
1.2
|
|
0.35
|
32.5
|
275.0
|
0.75
|
0.96
|
|
III Condition : Cold Rolling Strip
|
|
0.01
|
25.0
|
150.0
|
0.73
|
2.4
|
|
0.02-0.04
|
31.0
|
190.0
|
0.73
|
1.6
|
