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Email : ks@hongertech.com
Permalloy has very high magnetic permeability compared to other materials.
Permeability is the degree of magnetization of a material that responds linearly to an applied magnetic field. Permalloy can divert magnetic flux and effectively protect sensitive components from near by magnetic source.
Below chart compares permeability of selected materials for reference:
|
Material |
Susceptibility(Xm) |
Permeability(µ) x10-6 |
Magnetic field |
|
Mu-metal |
20000[1] |
25000 N/A2 |
at 0.002T |
|
Permalloy |
8000[1] |
10000 N/A2 |
at 0.002T |
|
Transformer iron with ρ=0.01µΩ·m |
4000[1] |
5000 N/A2 |
at 0.002T |
|
Steel |
700[1] |
875 N/A2 |
at 0.002T |
|
Nickel |
100[1] |
125 N/A2 |
at 0.002T |
|
Platinum |
2.65 x 10-4 |
1.2569701 N/A2 |
|
|
Aluminum |
2.22 x 10-5[2] |
1.2566650 N/A2 |
|
|
Hydrogen |
8 x 10-9 or 2.2 x 10-9[2] |
1.2566371 N/A2 |
|
|
Copper |
-6.4 x 10-6 or -9.2 x 10-6[2] |
1.2566290 N/A2 |
|
An electromagnetic wave can be divided into electric field and magnetic field.
Magnetic field is reportedly more harmful to the human body than an electric field. Electric field (RF) can be effectively shielded by conductive material properly grounded, but the magnetic field is not easily shield and requires highly permeable material such as Permalloy or Mu-metal.
By heat treating the steel plate (containing nickel) at high temperature, these metals’ magnetic shielding performance reaches about 96%, while high performance comes with high price. Our Permalloy, made with a newer technique, is available at reasonable prices.
Our Permalloy is extremely thin nickel alloy and is made with special high temperature to produce superior shielding capability against a magnetic field. It is easily made into many forms and shapes by die-press, soldering and cutting.
Packaging & Shipping
1. Carton boxes package for small quantity
2. Wooden Case For Large Quantity (Make sure the products shipped in safety)
Our Services
1. before purchase
Any comments or advice from you are welcome. We will try to answer all your call and reply your every requirement.
2. Sample provided
Samples are normally offered. Sample will be charged according to the quantity or the value of the material. We can return this charge in the following order payment. So don't worry about the quality, you have every chance to try and inspect before you place the order.
3. After-sale service
We will follow every order from beginning to the end. Any quality problem happens, just send us a message or email. We will process it as soon as possible. We will replace the material if they are inspected defective.
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