MagnetShield

High Saturation Magnetic Alloy


First line of defense for shielding strong static magnetic fields from magnets & speakers. Also for small transformers and motors. Strong magnetic fields are harder to shield because they tend to "saturate" the shielding material. This 4" wide sheet Iron alloy is a hefty .010" thick and has an exceptionally high magnetic saturation of 21400 Gauss and maximum permeability of 4000. Tin plated for excellent corrosion resistance and better conductivity, it can be soldered or painted.


MagnetShield typically reduces fields up to a factor of 2 or 3 depending on size/shape of the shield. Can be used in multiple layers. Annealing is not necessary with this material.

Weight Price
MagnetShield/feet/4 inch widthCat. #A274 0.008 kg £5.02

Technical Specification

Width: 4 Inches,
Length: 1 linear foot, available in running lengths.
You can also order this product in measurements of your choice. For example:- 4.6 linear feet!
This product is cut off a large roll according to customer specifications. A return is not possible!

Mechanical Specifications
Specific Gravity: 7.86
Coefficient of Expansion: 13.7 x 10-6 per °C
Tensile Strength: 42 x 10³ PSI
Yield Strength: 27 x 10³ PSI
Mod. of Elasticity: 30 x 106 PSI
Hardness (Rockwell B): 50 Ref.
Melting Point: 1532°C
Thermal Conductivity: 0.118 cal/sec/cm²/cm/°C at 20°C
Minimum Operating Temp: 4°K
Curie Temp: 770°C
Carbon Content: .07%

Electromagnetic Specifications
Electrical Resistivity: 64 ohms/cir mil-foot
Saturation Induction: 21,400 Gauss
Initial Permeability: 200
Permeability at 40 B: 300
Permeability at 200 B: 500
Maximum Permeability: 4000
Induction at m max.: 8000
Coercive Force: 1.0 Hc, Oersteds

Delivery Time: Usually 2 - 3 working days

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