*When the product is subsequent welding applications and so specified by the purchaser, Zn shall be .50% max., Pb .025% max., P .02% max., Sulfur .02% max. and Carbon .05% max.
Applications
Condensers, condenser plates, distiller tubes, evaporator and heat exchanger tubes, salt water piping, ferrules.
Common Fabrication Processes
Forming and bending, welding.
Mechanical Properties
Typical for 1" OD Light Drawn Tube x .065" wall thickness
Hardness*
Rockwell F Scales
72
Tensile Strength**
KSI
60
Yield Strength **
KSI
57
Elongation**
% in 2 inch
10
**Test values are nominal approximations and depend on specimen size and orientation.
Physical Properties
Thermal Conductivity
BTU/ (sq ft-ft-hr-F)
26
Specific Heat
BTU/lb/ºF @ 68F
.09
Thermal Expansion
Per °F from 68 F to 212 F
.0000095
Density
lb/cu in @ 68 F
.323
Electrical Conductivity
% IACS @ 68 F
9
Modulus of Elasticity
KSI
18,000
*Volume basis
Fabrication Practices
Capacity for being cold worked
Good
Capacity for being hot formed
Good
Suitability for being joined by:
Soldering/Excellent
Brazing/Excellent
Oxyacetylene Welding/Fair
Gas Shielded Arc Welding/Excellent
Coated Metal Arc Welding/Good
Resistance Welding
Spot/Good
Seam/Good
Butt/Excellent
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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Copper-Nickel C70600 (90/10)
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Copper Alloy No. C70600 
