Alloy Wire

Ken-tron draws 42 Alloy, 46 Alloy, 48 Alloy, 52 Alloy, and other controlled expansion and low expansion alloys for our drawn metal wire customers.  Ken-tron customers use controlled expansion and low expansion wire alloys to produce items for the aerospace, appliance, defense, power generation, lighting, medical, electronics, music, semiconductor, telecommunications, and other industries.

Alloy 52 is a nickel iron alloy suitable for glass and ceramic sealing to metal. It is commonly used in magnetic reed blade switches, lead wire for mercury switches and in semiconductor devices.

Chemical Composition


UNS N14052
Nickel 50.5 Nominal
Manganese .60 Max
Silicon .30 Max
Carbon .05 Max
Aluminum .10 Max
Cobalt Incidental
Chromium .25 Max
Sulfur .025 Max
Phosphorus .025 Max
Iron Remainder
SAE AMS I23011 Class II
Temper PSI Range
Annealed 85,000 Maximum
1/4 Hard 90,000 – 105,000
1/2 Hard 105,000 – 125,000
Hard 120,000 Minimum

Typical Tensile Strength

Annealed 85,000 psi Max
1/4 Hard 90,000 – 115,000 psi
1/2 Hard 105,000 – 125,000 psi

Temperature Coefficient Of Thermal Expansion

(limits per SAE AMS I23011 Class II)
Cm per cm per °C x 10 minus 6

30 – 450 °C 9.6 – 10.1
30 – 550 °C 10.2 – 10.7

Other Properties

Density (lbs/in3) .300
Melting Point (°F) 2600
Electrical Resistivity 260 ohm-cir mil/ft

The Ken-tron Wire Division specializes in small diameter close tolerance wire made to customer specifications. Ken-Tron manufactures to your custom specifications.

For additional Inquiries, please request a quote or contact us here.

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