Copper-Nickel C70600 (90/10)
Copper Alloy No. C70600
Copper Nickel 90/10
Chemical Composition % by weight
Copper Nickel 90/10
Chemical Composition % by weight
Element | Nominal | Minimum | Maximum |
Copper | 88.6 | Rem. | Rem. |
Lead | - | - | .05 |
Iron | 1.4 | 1 | 1.8 |
Zinc | - | - | 1* |
Nickel | 10 | 9 | 11 |
Manganese | .60 | .30 | .80 |
*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 B Scales | 72 |
Tensile Strength** | KSI | 60 |
Yield Strength** (.5% EAU) | 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 572 F | .0000095 |
Density | lb/cu in @ 68 F | .323 |
Electrical Conductivity* (Annealed) | % IACS @ 68 F | 9 |
Modulus of Elasticity (Tension) | KSI | 18,000 |
*Volume basis
Fabrication Properties
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 |