90/10 Copper-Nickel
Overview
C70600 is the standard 90/10 copper-nickel alloy, prized for its outstanding resistance to seawater corrosion and biofouling. It is the primary alloy for seawater piping systems, heat exchangers, and condenser tubes in marine and power generation applications.
As a C70600 90/10 copper-nickelsupplier, Triton Bronze & Metals stocks copper in tube, pipe, sheet, and more — all cut to length and shipped from US mills. Certified mill test reports available to meet your quality requirements.
Chemical Composition — C70600
| Element | Content |
|---|---|
| Copper (Cu) | 86.5% min |
| Nickel (Ni) | 9-11% |
| Iron (Fe) | 1-1.8% |
| Manganese (Mn) | 1% max |
| Lead (Pb) | 0.02% max |
| Zinc (Zn) | 1.0% max |
Mechanical Properties
Physical Properties
| Property | Value |
|---|---|
| Density | 0.323 lb/in³ (8.94 g/cm³) |
| Melting Range | 2010-2100°F (1099-1149°C) |
| Modulus of Elasticity | 18,000 ksi (124 GPa) |
| Thermal Conductivity | 26.0 BTU/ft·hr·°F (45.0 W/m·K) |
| Coefficient of Thermal Expansion | 9.5 × 10⁻⁶ /°F (17.1 × 10⁻⁶ /°C) |
| Electrical Conductivity | 9% IACS |
Applicable Specifications
- ✓ASTM B111 (Tube)
- ✓ASTM B171 (Plate)
- ✓ASTM B122 (Sheet/Strip/Bar)
- ✓MIL-C-15726 (Pipe & Tube)
Fabrication & Joining
| Process | Rating |
|---|---|
| Soldering | Good |
| Brazing | Good |
| Oxyacetylene Welding | Fair |
| Gas Shielded Arc Welding | Good |
Common Applications
- •Seawater piping systems
- •Heat exchangers
- •Condenser tubes
- •Desalination plants
- •Offshore fire water systems
- •Hulls of boats
Frequently Asked Questions
What forms is C70600 90/10 Copper-Nickel available in?+
We supply C70600 in Tube, Pipe, Sheet, Plate, Round Bar. All material is sourced from US mills, cut to length, and shipped directly to your facility.
What are the typical applications for C70600?+
C70600 is commonly used for seawater piping systems, heat exchangers, condenser tubes, desalination plants. Contact us for application-specific recommendations.
Can I get a mill test report for C70600?+
Yes. Mill test reports (MTRs) are available upon request for all C70600 orders. We can also provide material certifications to meet your quality requirements.
Dimensional Tolerances
For standard finishing allowances, diameter tolerances, and concentricity data for continuous cast copper products, see our tolerance reference.
View Tolerances & Finishing Allowances →Need Finished Parts?
Need C70600 machined to spec? We offer custom machined parts, bronze bushings, bearings, and wear components in any alloy we stock.
View Finished Parts & Components →Available Forms
- Tube
- Pipe
- Sheet
- Plate
- Round Bar
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