EFI Alloy 50 (aka Magnifer 502, Carpenter High Permeability 491, Alloy 47-50)
A soft magnetic alloy, consisting of 49% Nickel, balance Iron used where high initial permeability, maximum permeability, and low core loss is needed.
EFI Alloy 50 Products
Ed Fagan Inc. stocks EFI Alloy 50 in a variety of forms and dimensions. Below are most of the standard stock form/sizes. If you do not see the size or form of EFI Alloy 50 that you require, please call one of our materials experts; our sales people are very knowledgeable and can assist you. We can cut, slit, shear, or center less grind EFI Alloy 50 to your exact specifications, and we also have tremendous versatility when it comes to custom sizes, packages, and unusual materials.
| EFI Alloy 50 Rod | |
EFI Alloy 50 Rod Diameter |
EFI Alloy 50 Rod Diameter |
.250” EFI Alloy 50 Rod |
1.062”EFI Alloy 50 Rod |
.375” EFI Alloy 50 Rod |
1.250”EFI Alloy 50 Rod |
.412”EFI Alloy 50 Rod |
1.375” EFI Alloy 50 Rod |
.500” EFI Alloy 50 Rod |
1.4375”EFI Alloy 50 Rod |
.625” EFI Alloy 50 Rod |
1.500” EFI Alloy 50 Rod |
.750” EFI Alloy 50 Rod |
1.750” EFI Alloy 50 Rod |
1.000” EFI Alloy 50 Rod |
2.000” EFI Alloy 50 Rod |
1.030” EFI Alloy 50 Rod |
4.000” EFI Alloy 50 Rod |
| EFI Alloy 50 Square Bar | |
EFI Alloy 50 Square Bar Width |
EFI Alloy 50 Square Bar Width |
1.030” EFI Alloy 50 Square Bar |
2.030” EFI Alloy 50 Square Bar |
1.780” EFI Alloy 50 Square Bar |
|
| High Permeability 49 Square Bar -- FM | |
High Permeability 49 Square Bar Width |
High Permeability 49 Square Bar Width |
1.781” High Permeability 49 Square Bar |
2.440” High Permeability 49 Square Bar |
2.031” High Permeability 49 Square Bar |
|
| EFI Alloy 50 Strip/Coil Annealed | |
EFI Alloy 50 Strip/Coil Thickness |
EFI Alloy 50 Strip/Coil Thickness |
.002” EFI Alloy 50 Strip/Coil |
.025” EFI Alloy 50 Strip/Coil |
.004” EFI Alloy 50 Strip/Coil |
.030” EFI Alloy 50 Strip/Coil |
.010” EFI Alloy 50 Strip/Coil |
.032” EFI Alloy 50 Strip/Coil |
.014” EFI Alloy 50 Strip/Coil |
.040” EFI Alloy 50 Strip/Coil |
.020” EFI Alloy 50 Strip/Coil |
.050” EFI Alloy 50 Strip/Coil |
| EFI Alloy 50 Strip/Coil Rotor Grade | |
EFI Alloy 50 Strip/Coil Thickness |
EFI Alloy 50 Strip/Coil Thickness |
.007” EFI Alloy 50 Strip/Coil |
.014” EFI Alloy 50 Strip/Coil |
.010” EFI Alloy 50 Strip/Coil |
|
Applications
Transformer cores, highly efficient motors, shielding, and specialized electronic devices, such as LF power transducers, chokes, relay parts, solenoids & oscillators.
EFI Alloy 50 Properties
| EFI Alloy 50 Typical DC Magnetic Properties | |
Saturation Induction - Gausses |
14,500 |
Maximum Permeability |
100,000 |
Coercive Force - Oersteds |
0.06 |
Coercive Force - A/m |
4.77 |
| EFI Alloy 50 Typical AC Magnetic Properties | |
Core Loss W/lb @ 400Hz & 20k G |
N/A |
B-40 Permeability @ 60Hz |
6,500 |
N/A = not a typical application value |
|
| EFI Alloy 50 Physical Properties | ||
Density |
lb/cu in |
0.295 |
Specific Gravity |
|
8.18 |
Curie Temp |
°F |
840 |
|
°C |
450 |
Melting Point |
°F |
2600 |
|
°C |
1427 |
Electrical Resistivity |
Micro-ohm-cm |
49 |
|
ohm-cir mil/ft |
290 |
Thermal Conductivity |
W/cm °C |
0.13 |
|
BTU-in/sq. ft-hr- |
90 |
Specific Heat |
Cal/g- °C |
0.12 |
|
BTU/lbm- °F |
0.12 |
Thermal Expansion |
ppm / °F (75°F to 842°F) |
5.0 |
|
ppm / °C (25°C to 450°F) |
9.0 |
| EFI Alloy 50 Mechanical Properties | ||
Tensile Strength |
ksi |
75 |
|
MPa |
518 |
Yield Strength |
ksi |
23 |
|
MPa |
159 |
Elongation |
% in 2 in. |
40 |
Typical Hardness Ann. |
Rockwell HRB |
80 |
Modules of Elasticity |
Mpsi |
24 |
|
kMPa |
166 |
| EFI Alloy 50 Chemistry | |
maximum % unless noted |
|
Iron |
49 |
Nominal Nickel |
50 |
Nominal Cobalt |
-- |
Molybdenum |
-- |
Carbon |
0.02 |
Manganese |
0.5 |
Silicon |
0.35 |
Vanadium |
-- |
Niobium |
-- |
Phosphorus |
-- |
Sulfur |
-- |
| EFI Alloy 50 Specifications | |
ASTM A753 |
MIL N-14411 |
ED FAGAN INC. supplies the highest quality special purpose metals and alloys for Aerospace/Aviation, Defense, Electronics, Magnetic, Medical, Lighting, Optical, Telecommunications, Ceramics, Heat Treating, and other high-technology industries.
1. Trademark Carpenter Technology Corp., Reading PA
2. Trademark ThyseenKrupp-VDM, Germany
Soft Magnetic Alloys
Ed Fagan Inc. stocks a variety of soft magnetic alloys for wide range of applications. EFI carries:Alloy 79
Alloy 50
Hiperco 50
Vim Var Core Iron
Radiometal 4550
And we also have a large selection of other types of specialty metals and alloys for high technology applications, including:
Controlled Expansion Alloys
Electrical/Electronic Nickel
Refractory Metals and Alloys
Hard to Find Materials