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Copper No. C14500
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 |
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Brazing/Good |
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Oxyacetylene Welding/Fair |
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Gas Shielded Arc Welding/Fair |
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Coated Metal Arc Welding/Not Recommended |
| Resistance Welding |
Spot/Not Recommended |
|
Seam/Not Recommended |
|
Butt/Fair |
The values listed above represent reasonable
approximations suitable for general engineering use. Due to commercial
variations in composition and to manufacturing limitations, they should not
be used for specification purposes. See applicable A.S.T.M. specification
references.
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