Ni₈₀Fe₂₀
Magnetic Materials
Permalloy Foil
Nickel-iron alloy with extremely high permeability and low coercivity. Essential for magnetic shielding, transformers, and precision electromagnetic devices requiring high sensitivity.
Atomic #
0
Atomic Wt
55.4 (avg)
CAS #
12003-65-7
Purity
99+%
Available Forms
Foil
Sheet
Wire
Shielding mesh
Purity Grades
Standard
High-purity
Ultra-soft
Applications
Semiconductor
- ✓Sensor materials
- ✓Shielding
Aerospace
- ✓Sensitive instruments
Permanent Magnets
- ✓Magnetic shielding
- ✓High-permeability cores
Technical Specifications
| Initial Permeability | 5000-25000 |
| Saturation Magnetization | 100 emu/g |
| Curie Temperature | 770°C |
| Density | 8.7 g/cm³ |
| Thickness | 10-500 µm |
Storage Requirements
Store in sealed containers in dry environment.
Packaging Options
- •Foil sheets
- •Shielding mesh
- •Wire spools
- •Custom forms
Request Permalloy Foil
Get a custom quote or learn more about our permalloy foil supply options.