Magnetic shielding material expertise
at ad-vance magnetics
Material Selection Simplified
As a leader in magnetic shielding, Ad-Vance Magnetics helps make material decisions easy.
Why material selection matters
The effectiveness of a magnetic shield depends heavily on choosing the right material for your application.
At Ad-Vance Magnetics, we help customers evaluate:
- Magnetic field strength
- Operating temperature
- Shield geometry
- Performance requirements
By assessing these factors early in the design process, we help customers choose the right shielding material for their specific application, optimizing performance while preventing costly redesigns and delays.
Understanding Shielding Material Performance
Optimal material choices depend on the strength of the magnetic field and the operating environment. Selecting the correct material helps ensure the magnetic field remains effective under real-world operating conditions.
Permeability
A material’s permeability is its ability to attract and redirect magnetic interference away from sensitive components.
Materials with higher permeability are generally more effective at shielding weak magnetic fields.
Saturation
When the magnetic field is too intense for the material’s thickness or type, the alloy becomes saturated, and shielding effectiveness decreases.
Selecting the correct material helps ensure the magnetic field remains effective under real-world operating conditions.
How to Choose the Correct Alloy
Shielding materials vary in permeability, meaning they perform differently under different field strengths and operating environments.
| Material | Permeability | Best For | Typical Applications |
|---|---|---|---|
| Ad-Mu-80 | High | Low-intensity magnetic fields that require maximum sensitivity | Medical devices, quantum systems |
| Ad-Mu-48 | Medium | Moderate magnetic field environments | Power systems, transformers, industrial equipment |
| Ad-Mu-00 | Low | High-intensity magnetic fields | Aerospace, defense |
Not sure which material is right for your application? Our engineering team can evaluate requirements and recommend the optimal shielding solution for your application.
Cryogenic Magnetic Shielding
Many magnetic shielding materials lose effectiveness at extremely low temperatures.
For systems operating in liquid helium (4.2K) or liquid nitrogen (77K) environments, Ad-Vance offers Cryoperm 10, a specialized magnetic shielding material designed to maintain performance in low temperatures after proper annealing.
Cryogenic materials are commonly used in:
- Quantum computing systems
- Cryogenic research equipment
- Advanced scientific instrumentation
When Once Shielding Layer Isn’t Enough:
Ad-Vance’s Multi-Layer Magnetic Shield Solutions
In some cases, shielding performance cannot be achieved with a single material layer. When this is the case, Ad-Vance combines material science and precision fabrication to produce nested, multi-layer shielding systems. We combine high-saturation and high-permeability materials to maximize shielding performance.
Outer layer of shielding
The outer layer is fabricated from high-saturation Ad-Mu alloys, such as Ad-Mu-48. Designed to handle stronger external fields, this layer absorbs and redirects a significant portion of magnetic noise, preventing saturation of the inner shielding layers.
Inner layers of shielding
Inner layers are fabricated using high-permeability materials, such as Ad-Mu-80. These layers are designed to pull remaining magnetic field lines into the material and away from the protected quantum computing environment, ensuring function is not compromised.
Heat treating magnetic shields
To achieve optimal performance, magnetic shielding components undergo hydrogen annealing. This controlled heat treatment process restores and optimizes magnetic permeability, ensuring shielding materials perform as intended.
Ad-Mu Magnetic Shielding Foil Material
Ad-Mu is Ad-Vance’s proprietary line of magnetic shielding materials.
For an efficient, economical choice, we offer high and low-permeability magnetic shielding foils. These flexible materials eliminate the cost of designing and manufacturing prefabricated magnetic shields while simplifying installation in hard-to-access locations.
Ad-Vance Magnetics Material Matrix
Search our premium alloys below. Have an old blueprint? Type a legacy specification, military spec (e.g. MIL-N-14411), or trade name into the search bar to automatically reveal the direct Ad-Vance equivalent.
| Ad-Vance Material | Material Description | Specification |
|---|
Ad-Mu Specifications
Ad-Mu Sheet Sizes
| Alloy | Stock Sheet Size | Thickness |
|---|---|---|
| Ad-Mu-80 | 24″ x 120″ 30″ x 120″ | .014″, .020″, .025″, .030″, .040″, .050″, .062″ |
| Ad-Mu-48 | 11″ – 12″ (wide coil) 24″ x 120″ | |
| Ad-Mu-00 | 24″ x 120″ 30″ x 120″ 36″ x 120″ 48″ x 120″ | .015″, .018″, .020″, .024″, .030″, .036″, .042″, .048″, .060″, .075″, .090″, .105″, .120″, .135″ |
Note: Smaller sheet sizes or coil sizes are available per customer specification
Ad-Mu Shielding Foil Sizes
| Alloy | Length | Thickness | Stock Width |
|---|---|---|---|
| Ad-Mu-80 | Per Customer Specification | .002" .004" .006" .010" | 4" 4" & 15" 4" & 15" 4" & 15" |
| Ad-Mu-00 | Per Customer Specification | .004" | 4" & 15" |
Note: Smaller sheet sizes or coil sizes are available per customer specification
Ad-Mu Bar Stock
Ad-Mu Bar stock is offered in round bar and square bar form. Custom sizes are available at a special run price. Contact Ad-Vance Magnetics for details.
Ad-Mu Square Bar
| Alloy | Bar Diameter | Bar Length |
|---|---|---|
| Ad-Mu-80 | 1.812" | 12ft |
| Ad-Mu-48 | 1.030″, 1.780″, 2.030″ |
Ad-Mu Round Bar
| Alloy | Bar Diameter | Bar Length |
|---|---|---|
| Ad-Mu-80 | .140″, .218″, .250″, .375″, .410″, .424″, .500″, .625″, .750″, 1.000″, 1.250″, 1.625″, 2.000″ | 12 ft |
| Ad-Mu-48 | .250″, .375″, .412″, .500″, .625″, .750″, 1.000″, 1.030″ 1.062″, 1.250″, 1.375″, 1,4375″, 1.500″, 1.750″, 2.000″, 4.00″ |
The Magnetic Shielding Materials Experts
Material choice is especially important for magnetic shielding components because magnetic fields can greatly interrupt performance. This is why customers trust Ad-Vance Magnetics to help identify the right material solution. Check out these resources to help get you started!
Material Matrix
Selecting the correct shielding material is critical to ensure peak performance. Our material matrix allows customers to cross-reference competitor brand names and legacy trade names to identify Ad-Vance equivalents, simplifying material selection.
Magnetic shielding alloys, cryogenic materials, nickel alloys, and Ad-Mu materials can be explored in the matrix.
DFM Guide
Our comprehensive design for manufacturability (DFM) guide outlines important considerations for magnetic shielding fabrication and ensures engineers avoid common pitfalls before submitting an RFQ.
Interactive shielding calculator
Customers can use our interactive shielding calculator to evaluate design considerations and gain insight into performance factors during early-stage development.
We developed these tools to help customers make better decisions earlier in the process, and improve efficiency so projects stay on track.