Alloy 4750 / Alloy 50 Soft Magnetic Alloy

Name: Alloy 4750 / Alloy 50 Soft Magnetic Alloy
Brand: Hiperoy

Standards

Mat. No. 1.3922 1.3926 1.3927

EU FeNi48

AISI/ASTM -

UNS UNS K94840

Other Magnifer 502
Carpenter High Permeability 491
Alloy 4750
Supra 503
EFI Alloy 50

Alloy 4750 is an alloy containing 49% nickel and 51% iron. It is used in applications that require low core loss, high permeability, and high saturation flux density.

Chemical Composition & Mechanical and Physical Properties

C % 0.05 max

Mn % 0.80 max

Mo% 0.30

Ni% 49.00

Si% 0.50 max

P% 0.030 max

S% 0.01

Cr% 0.30 max

Fe% Rest

Co% 0.50

Typical DC Magnetic Properties

Saturation Induction - Gausses 14,500

Maksimum Permeability 100,000

Coercive Force Oersteds 0.06

Coercive Force - A/m 4.77

Typical AC Magnetic Properties

Core Loss W/lb @ 400 Hz &20k G N/A

B-40 Permeability @60 Hz 6500

Density (lb/cu in) 0.295

Melting Point °C 1427

Electrical Resistivity (ohm-cir mil/ft) 290

Thermal Conductivity (W/cm°C) 0.13

Specific Heat Cal/g-°C 0.12

Thermal Expansion (ppm/oC (25°C-450°C)) 9.00

Application areas

It is used in sectors such as aviation and automotive, as transformer cores, magnetic shields and cores, and in solenoid components.

Specifications

UNS K94840
MIL N-14411
ASTM A753 Type 2
MIL N-14411C Comp 3