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 F 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)
20.5
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
% IACS @ 68 F
93
Modulus of Elasticity
KSI
17,000
*Volume basis
Fabrication Practices
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
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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C14500 Tellurium Copper
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Copper No. C14500 
