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 MIL-HDBK-419A
Table 1-29
Relative Conductivity and Relative Permeability of Common Metals
Relative
Relative
Metal
Permeability
Comments
Initial
Maximum
.011
Alfenol
3,450
116,000
Beryllium
.377
1
Brass
.442
1
66% Cu, 34% Zn
Cadmium
.230
1
Chromax
.017
15% Cr, 35% Ni, 50% Fe
.663
1
Cobalt
.177
70
250
Constantan
.039
55% Cu, 45% Ni
Copper
1.000
1
Commercial annealed
Gold
.707
1
HyMu80
.030
20,000
100,000
80% Ni, 20% Fe
Iron, pure
.178
25,000
350,000
Annealed
Iron, Swedish
.172
250
5,500
Iron, cast
.057
100
600
Kovar A
.006
29% Ni, 17% Co,
0.3% Mn, 53.7% Fe
Lead
.079
1
Magnesium
.387
1
Manganin
.039
84% Cu, 12% Mn, 4% Ni
Monel Metal
.041
67% Ni, 30% Cu, 1.4% Fe,
1% Mn
Mumetal
.034 - .069
20,000
100,000
71-78% Ni, 4.3-6% Cu,
0-2% Cr, bal. Fe
Nickel
.250
110
600
Nickel-silver
.062
64% Cu, 18% Zn, 18% Ni
Palladium
.160
1
Permalloy
.038
2,500
25,000
45% Ni, 55% Fe
Permendure
.066
800
4,500
50% Co, l-2% V, bal. Fe
Platinum
.164
1
Rhodium
.338
1
Rhometal
.019
1,000
5,000
36% Ni, 64% Fe
1-163
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