Soft Magnetic Iron Nickel Alloys

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SOFT MAGNETIC IRON NICKEL ALLOYS

Soft Magnetic Iron Nickel Alloy Supplier In India

Nickel is renowned for its good ductility and electrical conductivity. It has many fields of application:

  • Used as an additional layer for a Thermostatic Bimetal to obtain a particular resistance.
  • As an additional layer for 1 and 2 Euro coins for authentication in vending machines.
  • In cladding material for various coins.
  • Used for Soldering lug for Batteries.
  • As Connecting strip for Batteries.
  • In various Automotive Components (e.g. car headlamp dippers).
  • For Electrolytic anodes in for Electroplating.
  • Connectors in steam irons.
  • For outer cap for transistors.

The soft-magnetic strip is produced in FeNi alloys with a Ni content between 35 – 81%. The alloy Normaperm (35-40%) exhibits a particular increase in permeability in magnetic field strengths up to approx. 100 mOe. The alloys with 45-55% Ni have relatively high initial permeability and high induction saturation. The alloys with 76-81% Ni have high initial permeability values.

ALLOY
AMW-TRADE NAMEALLOYSTANDARDMATERIAL-NO. DIN/UNS
NormapermFeNi 36DIN 17745 / DIN 17405 / DIN IEC 740-21.3910 / 1.3911
NifemaxFeNi 48DIN 17745 / DIN 17405 / DIN IEC 740-2 / ASTM A 7531.3922 / 1.3926 /1.3927 K 94840
Perm 77FeNi 77CuMoDIN 17745 / DIN 17405 / DIN IEC 740 – 22.4530
Super-MunipermFeNi 80MoDIN 17745 / DIN 17405 / DIN IEC 740 – 2 / ASTM A 753 / MIL-N-14411C2.4545 N 14080
AVERAGE CHEMICAL COMPOSITION
AMW-TRADE NAMENIMNMOSCRCUCSIPFE
Normaperm360.3≤ 0.2≤ 0.008≤ 0.3≤ 0.3≤ 0.02≤ 0.2≤ 0.02Bal
Nifemax480.4≤ 0.2≤ 0.008≤ 0.3≤ 0.3≤ 0.02≤ 0.2≤ 0.02Bal
Perm 77770.54.1≤ 0.008≤ 0.34.4≤ 0.02≤ 0.2≤ 0.02Bal
Super-Muniperm800.54.9≤ 0.008≤ 0.3≤ 0.3≤ 0.02≤ 0.15≤ 0.02Bal
PHYSICAL PROPERTIES
AMW-TRADE NAME DENSITY BS TC HC Μ0.41 Μ MAX 1 MODULUS OF ELASTICITY
g/cm3 T ˚ C A/m DC/AC DC/AC GPa
Normaperm 8.2 1.2 240 10 6000/5000 25000/20000 135
Nifemax 8.3 1.5 470 4 13000/9000 150000/70000 150
Perm 77 8.8 0.75 410 0.5 250000/100000 300000/150000 195
Super-Muniperm 8.8 0.75 410 0.5 250000/100000 300000/150000 195

Measured on wound cores strip thickness 0.2 mm (reference value)

Bs – Saturation flux density

Tc – Curie temperature

Hc – Coercive force

µ 0.41 – Initial permeability

µmax 1  Maximum permeability

DC – Direkt Current

AC – Alternating Current

MECHANICAL PROPERTIES
AMW-TRADE NAME TEMPER YIELD STRENGTH Rp 0.2 MPa TENSILE STRENGTH Rm MPa VICKERS HARDNESS HV
Normaperm annealed 280 440 140
hard 750 800 230
Nifemax annealed 300 520 140
hard 800 850 250
Perm 77 annealed 320 630 160
hard 1000 1050 320
Super-Muniperm annealed 320 650 160
hard 1050 1100 330
DIMENSIONS AND TOLERANCES (mm)

THICKNESS TOLERANCES

THICKNESS WIDTH 10 -50 WIDTH > 50 – 200 WIDTH > 200 – 320
0.10 – 0.20 + 0.010 ± 0.015 ± 0.020
> 0.20 – 0.50 + 0.020 ± 0.020 ± 0.030
> 0.50 – 1.00 + 0.030 ± 0.030 ± 0.040
> 1.00 + 0.050 ± 0.050 ± 0.070

Other thickness and tolerances on request.

WIDTH TOLERANCES

WIDTH THICKNESS 0.10 – 0.20 THICKNESS > 0.20 – 0.50 THICKNESS > 0.50 – 1.00 THICKNESS > 1.00 – 2.00
10 – 50 ± 0.1 ± 0.2 ± 0.2 ± 0.3
> 50 – 200 ± 0.2 ± 0.3 ± 0.3 ± 0.4
> 200 – 320 ± 0.3 ± 0.4 ± 0.5 ± 0.6

Other width and tolerances on request.

LENGTH TOLERANCES (CUT LENGTH)
THICKNESS LENGTH 500 – 3000
10.40 – 2.00 + 10

Other tolerances on request.

PRODUCT FORM (mm)
FORM THICKNESS WIDTH LENGTH COIL-ID COIL-OD
Strips 0.10 – 2.00 10 – 320 300 / 400 / 500 max. 1050
Cut Length 0.40 – 2.00 50 – 320 500 – 300

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