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Tellurium Copper 145 / C145 / C14500


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 affects 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

Contact one of our professional sales staff today to learn more about our inventory of C14500 Tellurium copper rod.

ASTM Standard Designation for C14500: ASTM B301

Available Shapes

Chemical Composition
(%max., unless shown as range or min.)
  Cu(1)(2) P Te
Min./Max 99.90 min. .004-.012 .40-.7
Nominal 99.50 .008 .55

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