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Property

Non-magnetic alloys

Near sensors, shielding systems or magnetic fields, a part must not disturb the field. We supply copper alloys with very low magnetic permeability, including beryllium-free grades.

How it is measured

Unit
Relative magnetic permeability μr
Reference
μr = 1 for a perfectly non-magnetic material
Portfolio range
1–1.5
Depends on
Alloy and temper

What this property costs

Magnetic permeability plotted against tensile strength, the property with which it has the strongest trade-off. Each zone represents the range of an alloy family.

Tensile strength →Magnetic permeability →

Families ranked by Magnetic permeability

Range across the active grades of each family, on a common scale.

  1. Brasses1–1.2
  2. Nickel-Silver1
  3. Copper-Nickel-Tin1.001–1.01Very low magnetic permeability, and an alternative to copper-beryllium.
  4. Copper-Nickel1.002–1.01
  5. Copper-Aluminium1.005–1.5
  6. Copper-Nickel-Silicon1.01
  7. Copper-Beryllium1.01
  8. Pure & Low-Alloy Copper1.01Low-alloyed grades combine very low magnetic permeability with mechanical properties.
  9. Copper-ManganeseNot measured
  10. Nickel-BaseNot measured
  11. Tin BronzesNot measured

Grades sorted on this property

Open in the full Navigator

The Navigator sorted on this property. Set your thresholds in the filters: nothing is locked.

Where it is required

  • Electromagnetic shielding

    Conductivity and long-lasting spring performance

    See the industry
  • Shielded cables

    Very low magnetic permeability with mechanical properties

    See the industry
  • Non-magnetic medical device parts

    Parts with very low magnetic permeability

    See the industry

Does your part sit close to a magnetic field?

Send us the field, the load and the environment. Our engineers propose a non-magnetic grade for your part.