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Copper-Nickel Pipe (Cupro Nickel)

The two common Seamless Copper-nickel alloys are Alloy 706 (C76000 - 10% nickel) and Alloy 710 (C71000 - 20% nickel).
Trenton stocks Alloy 706 only; Alloy 710 as well as other CuNi alloys are available as a special order.
The applicable Standard is ASTM B 466. This pipe is made in standard pipe sizes as well a military specification pipe sizes. Trenton stocks standard pipe sizes only; Military specification pipe is available by special order.

Alloy 706 - Chemical Composition
  • Nickel 9-11 %
  • Lead max 0.05%
  • Iron 1-1.8%
  • Zinc max. 1%
  • Manganese max. 1%
  • Sulfur max. 0.02%
  • Phosphorus max. 0.02%
  • Copper remainder (approx. 88-89%)
  • Phosphorus (P) = 0.02%
  • Alloy 706 - Mechanical Properties
    Tensile Strength Yield Strength Elongation in 2"
    (ksi) (ksi) /50mm%
    44-60 16-57 42-10
    Trenton Pipe Nipple Company does NOT provide engineering or application advice or information. The above information is provided as a general guideline or overview and is NOT intended to be a comprehensive statement of all the applicable technical information or data. There are numerous conditions, limiting factors and requirements set out in ASTM and other technical standards and publications which have not been discussed in these guidelines. Accordingly, the advice of a qualified engineer or other professional should be followed when choosing or applying a product. While the information provided is believed to be from reliable sources, Trenton Pipe Nipple Company is not responsible for errors and omissions in the information / data provided - users are strongly advised to consult qualified professionals.


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