C14500 Tellurium Copper
Copper No. C14500
Tellurium Copper , CDA 145 ASTM B 301
Nominal Chemical Composition % by weight
Tellurium Copper , CDA 145 ASTM B 301
Nominal Chemical Composition % by weight
Copper (incl. Silver) | Phosphorus | Tellurium |
99.7 | .008 | .55 |
Applications
Forgings, screw machine products and parts requiring high conductivity, extensive machining, corrosion resistance, copper color, or a combination of these; electrical connectors, motor and switch parts, plumbing fittings, soldering coppers, welding torch tips, transistor bases and furnace brazed articles.
Mechanical Properties
Typical for 1" solid diameter Hard (35%) Temper
Hardness* | Rockwell B Scales | 48 |
Tensile Strength** | KSI | 48 |
Yield Strength** | KSI | 44 |
Elongation** | % in 2 inch | 20 |
*Hardness conversions are approximate
**Test values are nominal approximations and depend on specimen size and orientation.
Physical Properties
Thermal Conductivity | BTU/ (sq ft-ft-hr-F) | 205 |
Specific Heat | BTU/lb/ºF @ 68F | .092 |
Thermal Expansion | Per °F from 68 F to 212 F | .0000095 |
Density | lb/cu in @ 68 F | .323 |
Electrical Conductivity* (annealed) | % IACS @ 68 F | 93 |
Modulus of Elasticity | KSI | 17,000 |
*Volume basis
Fabrication Properties
Capacity for being cold worked | Good |
Capacity for being hot formed | Good |
Hot forgeability rating (forging brass=100) | 65 |
Hot working temperature | 1400-1600 F or 750-875 C |
Annealing temperature | 800-1200 F or 425-650 C |
Machinability rating (Free Cutting Brass=100) | 85 |
Suitability for being joined by: | Soldering/Excellent |
Brazing/Good | |
Oxyacetylene Welding/Fair | |
Gas Shielded Arc Welding/Fair | |
Coated Metal Arc Welding/Not Recommended | |
Resistance Welding | Spot/Not Recommended |
Seam/Not Recommended | |
Butt/Fair |