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Alloy 706 Copper Nickel

Sequoia Brass & Copper sells alloy 706 copper nickel. Copper nickel is most commonly used for marine applications because of its high seawater corrosion resistance and anti-biofouling properties. 706 copper nickel offers the best characteristics for marine hardware and can be formed, bent, and welded. This product is available in plate, sheet, strip, pipe, and tube product forms cut to your specifications. 706 copper nickel has excellent soldering, brazing, gas shielded arc welding, and butt weld fabrication properties. Other uses include automotive parts, industrial materials, and plumbing flanges.

  • Chemical Composition
  • Fabrication Properties
  • Casting Characteristics
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  Cu Fe Pb Mn Ni Zn
Min/Max Rem. 1.0 - 1.8 0.05 1 9.0 - 11.0 1
Nominal 88.6 1.4 10
Joining Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Excellent
Coated Metal Arc Welding Good
Spot Weld Good
Seam Weld Good
Butt Weld Excellent
Capacity for Being Cold Worked Good
Capacity for Being Hot Formed Good
Machinability Rating: 20
 
Product Forms
Plate
Sheet
Strip
Pipe
Tube
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Common Fabrication Processes For 706 Copper Nickel

Forming and bending, welding

Typical Uses

Automotive
Brake lines, power steering tube
Consumer
Screw lamp bases
Industrial
Weld torch tips, pump impellers for oil refining, pressure vessels, distiller tubes, ferrules, heat exchanger tubes, condenser plates, condensers, evaporators, valve bodies
Marine
Boat hulls, hot water tanks, water hoses, tube sheet for salt water service, ship hulls, propeller sleeves, salt water pipe fittings, salt water piling wrap, salt water baffles, salt water piping systems
Plumbing
Flanges