Controlled & Low Expansion Alloy Wire

Ken-tron produces Alloy Wires from materials such as Alloy 52, Alloy 42, 46, 48 and others. These alloys are used when expansion control is critical — for example in glass-to-metal seals, semiconductors, leading precision instrumentation, lighting, power generation and more.

Chemical & Mechanical Profile (Alloy 52 example)

Alloy ASTM F30 / UNS N14052
Nickel ~ 50.5 % nominal
Iron balance
Manganese ≤ 0.60 %
Silicon ≤ 0.30 %
Carbon ≤ 0.05 %
Minor ≤ 0.10 % of aluminium, sulphur, phosphorus, chromium etc.
Temperature coefficient of expansion (30-450 °C) ~ 9.6-10.1 µm/m·°C
Up to 550 °C ~ 10.2-10.7 µm/m·°C
Mechanical strength depends on temper; annealed maximum ~ 585 MPa (≈ 85 000 psi), harder tempers significantly higher.

Applications Include:

  • Glass/ceramic to metal sealing
  • Semiconductor leads
  • Precision electronic components
  • Telecommunications, lighting, appliance industries

Click here for a full color parts brochure (1.31 MB) in PDF format.

As always, we manufacture to your precise requirements. Reach out for quotations or material data sheets.