Alloy Of The Week: Nickel 205

July 13, 2016

Nickel 205      Nickel 205


For our inaugural “Alloy of the Week”, we have chosen to highlight the Nickel 205 Alloy. One of our most popular alloys, this nickel based wire has a wide array of uses and applications, especially within the electrical world. Coming from the “pure-nickel” family, this alloy has great electrical attributes and is used for it’s conductivity and corrosion-resistant properties. Below are the specifications for Alloy 205.

ASTM: F9 • DIN: 17753 • UNS: N02205 • Ω/cir. mil. .: 57 • Weight/Density: .321 lbs/in2 (8.9 g/cm3) •

• Chemical Composition %: Ni 99.6%, C .02% max, Cu .1%, Fe .2%, Mg .15%, Mn .3%,S .005%, Si .1% •

• Coeff. of Lin. Expansion, X 10-6: 14.5 (200˚C), 15.2 (400˚C), 15.5 (600˚C), 16.0 (800˚C) •

• Conductvity: 75 w/mK • Specific Heat: .109 cal./gm @ 20˚C • Temp. Coeff. of Resistance: 0.0060 • Specific Gravity: 8.9 • Melting Point: ~1,450˚C (~2,640˚F) •

• Elongation: 20-40% • Max Operating Temp: ~1,100˚C (~2,012˚F) • Yield Point: 15,000-35,000 • Soft Tensile: 50,000-70,000 PSI

As stated above, Nickel 205 is sought after for it’s potent electrical and resistance attributes. Therefore, this wire is perfect for use in anodestransistor housings, lead wiresbattery cases, and vacuum tubes. Obviously, the electrical properties of this metal make it appealing to work with, but this alloy is also very easily formed. Nickel 205 is extremely ductile and depending on the diameter, can even be formed by hand. The combination of conductivity and ductility creates a material that is used in an array of industries:

  • Aerospace/Aviation
  • Electronics
  • Medical Devices
  • Lighting.

Precision Wire Technologies carries this alloy, among many others from Bronze, Brass, Stainless Steel, Nickel Plated, and other Pure Nickel materials. Check our “Alloys” page to see if we have what you are looking for!

Lastly, here is an example of a vacuum tube being manufactured with this wire product. Just one of the many uses for this alloy.