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CuNi 90/10 is one of the most widely specified copper-nickel alloys for seawater service. The alloy contains approximately 90% copper and 10% nickel, with small additions of iron and manganese to improve corrosion resistance. CuNi10Fe1Mn is the equivalent European material designation for this alloy. At PipingMarket.eu, these types of products can be sourced through one RFQ platform.
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Why choose CuNi 90/10?
The combination of excellent corrosion resistance, good mechanical properties and a long service life makes CuNi 90/10 one of the most widely specified copper-nickel alloys for marine and industrial piping systems. The alloy performs exceptionally well in seawater, offering excellent resistance to corrosion, erosion and biofouling while requiring minimal maintenance throughout its service life. In addition, CuNi 90/10 provides good weldability and fabrication characteristics.
C70600 material specification
C70600 is the UNS material designation for the CuNi 90/10 alloy. This specification is widely used on international drawings, procurement documents and material certificates, particularly for ASTM and ASME piping components. Products manufactured as C70600 are available in numerous forms, including pipe, fittings, flanges and forgings. Depending on the project, material certification, pressure rating and dimensional requirements can be specified within the RFQ.
CuNi10Fe1Mn equivalent
The European material designation CuNi10Fe1Mn refers to the same alloy composition as CuNi 90/10 and C70600. While the chemical composition remains essentially identical, CuNi10Fe1Mn is frequently specified for European engineering projects, offshore installations and marine piping systems. Understanding when to specify CuNi10Fe1Mn simplifies international sourcing, especially when multiple standards and customer specifications are involved.
Available product forms
CuNi 90/10 products are available in a variety of forms, including:
- seamless pipes;
- fittings;
- flanges;
- forgings;
- cunifer elbows.
C70600 products can be supplied in standard dimensions or manufactured to project-specific requirements. The alloy is also commonly referred to as cunifer.
Specify your project requirements
Whether you require standard piping components or project-specific CuNi solutions, submit your technical specifications through our online RFQ platform. Our specialists will help you source the appropriate products through an international supplier network. From standard dimensions to custom material specifications, we work with you to identify the most suitable solution.
