Low/Controlled Expansion, Glass Sealing Alloys, and Magnetic Shielding Materials

Alloys International has expanded both inventory and international mill representation to provide a diversified range of materials with the most demanding engineering applications. This includes our glass sealing alloys and magnetic shielding materials such as:

  • Alloy 42
  • Alloy 42-6
  • Alloy 46
  • Alloy 49
  • Alloy 52
  • Kovar
  • Super Invar 32-5
  • Mu 49
  • Mu 80
  • Mu 85

As low CTE metals, the rate at which these materials expand during increases in temperature is far less than other standard alloys. This means more stability over wider temperature ranges, making it a perfect solution for the development of calibration instruments, watches/clocks, engine pistons, conducting systems, and electronics. Whether it’s our magnetic shielding foil, glass to glass seal, or glass to metal seal, we offer the highest quality standards of magnetic shielding materials with years of advanced experience as a leading alloy provider.

Flat products from
.002” THK foil to 2”+ plate

Round products from
.0009” DIA wire to 15”+ bar

Thank You!

We’ll be in touch soon!