Dear Customer,
We are closely monitoring the situation regarding COVID-19 Coronavirus Outbreak.

Read More

Tellurium Copper Bar

Farmer’s Copper Ltd. inventories C14500 Tellurium copper round rod. C145 Tellurium is classified as a free-machining copper. The copper telluride precipitations in the microstructure effects the cutting chips into short pieces, thus enabling a much higher machining speed than with pure copper. Copper 145 Tellurium has a machinability rating scale of 85%, compared to pure copper of 20%, thus longer tool life. The high conductivity of tellurium copper makes it a suitable material for electrical applications.

Typical application for C14500

  • Electrical Switches on power semiconductors
  • Welding Torch tips
  • Transformer & Circuit-breaker terminals
  • Fasteners

Farmer’s Copper Ltd. has been in the metal industry since 1920 and our knowledgeable sales staff is available to help you with your Tellurium Copper needs. Please contact us today.

List of Standard Sizes

3/8” thru 6” diameter

ASTM Standard Designation for C14500: ASTM B301

Chemical Composition
(%max., unless shown as range or min.)






99.90 min







Contact one of our sales representatives today
to inquire about a quote from Farmers Copper
or call us today at (800) 231-9450