Overview
Magnetic interference can affect the quality of a wide variety of systems involving sound, video, and instrumentation equipment. The high permeability of magnetic shielding alloys can significantly improve performance in such systems. In the medical community, magnetic shielding alloys are used to protect sensitive measuring equipment, such as electrocardiogram machines. In the automotive and aerospace industries, alloys are used to protect electronic controls. Magnetic shielding alloys, such as Co-NETIC®, NETIC®, MuMETAL®, HyMu 80®, and LE Alloy 49, are used to protect a host of products from interference including cell phones, home theater systems, computer display monitors, and retail credit card readers.
Frequently Used Materials
for Magnetic Shielding
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Overview of Hymu80
HyMu 80 alloy is an unoriented, 80% nickel-iron-molybdenum alloy which offers extremely high initial permeability as well as maximum permeability with minimum hysteresis loss.
HyMu 80 alloy has been used primarily in transformer cores, tape wound toroids and laminations where compactness and weight factors are important. It has also been used for shielding to protect electrical components from stray magnetic fields.
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Overview of High Perm 49®
It is used in laminated cores for instrument transformers, magnetic shields and cores for certain electronic and communication devices. High Perm 49’s extremely high permeability at low magnetizing forces significantly increases operational effectiveness and efficiency. Because of its high permeability, it is used in solenoid cores and in light-sensitive relays that must operate and respond to weak currents that induce low magnetizing forces.
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Overview of MuMETAL
For decades, scientists, engineers, metal suppliers and fabricators have referred to mumetal as the industry standard. However, MuMETAL® is a registered trade name and exclusively available from Magnetic Shield Corporation, a worldwide leader in low-frequency magnetic shielding.
MuMetal®, CO-NETIC®, NETIC® and INTER-8® are registered trademarks of Magnetic Shield Corporation, U.S.A. All rights reserved. -
Overview of Titanium 6Al/4V
Ti-6Al-4V (UNS designation R56400), also sometimes called TC4,[1] is an alpha-beta titanium alloy with a high strength-to-weight ratio and excellent corrosion resistance. It is one of the most commonly used titanium alloys and is applied in a wide range of applications where low density and excellent corrosion resistance are necessary such as e.g. aerospace industry and biomechanical applications (implants and prostheses).
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Overview of Titanium CP Grades 1 & 2
Unalloyed Commercially Pure (CP) Titanium is available in four different grades, 1, 2, 3 and 4, which are used based on the corrosion resistance, ductility and strength requirements of the specific application. Titanium Grade 2 is stronger than Grade 1 and equally corrosion-resistant against most applications.
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Overview of Alloy 42
The coefficient of thermal expansion for LE alloy 42 makes it very well suited for joining to ceramic chips in miniature electronic circuits. A less-expensive alternative to similar electronic nickel alloys, it is used extensively in the automotive, electronic and medical industries.
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