High thermal and electrical conductivity and high ductility combined with low volatility makes this material indispensable in the electronics industry.
Applications
Some typical uses for Copper Alloy 10100 in the electrical and electronic industries are bus bars, bus conductors, wave guides, hollow conductors, lead-in wires and anodes for vacuum tubes, glass to metal seals and others.
Mechanical Properties
Typical for 1" solid diameter Hard (35%) Temper
Hardness*
Rockwell F Scales
87
Tensile Strength**
KSI
48
Yield Strength **
KSI
55
Elongation**
% in 2 inch
16
*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)
226
Specific Heat
BTU/lb/ºF @ 68F
.092
Thermal Expansion
Per °F from 68 F to 212 F
.0000094
Density
lb/cu in @ 68 F
.323
Electrical Conductivity
% IACS @ 68 F
101
Modulus of Elasticity
KSI
17,000
*Volume basis
Fabrication Practices
Capacity for being cold worked
Excellent
Capacity for being hot formed
Excellent
Hot forgeability rating (forging brass=100)
65
Hot working temperature
1400-1600 F or 750-875 C
Annealing temperature
700-1200 F or 375-650 C
Machinability rating (Free Cutting Brass=100)
20
Suitability for being joined by:
Soldering/Excellent
Brazing/Good
Oxyacetylene Welding/Not Recommended
Gas Shielded Arc Welding/Fair
Coated Metal Arc Welding/Not Recommended
Resistance Welding
Spot/Not Recommended
Seam/Not Recommended
Butt/Good
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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Oxygen-Free Copper C10100
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Copper No. C10100 
