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In marine environments such as shipbuilding, offshore platforms, and seawater transmission systems, piping materials are continuously exposed to severe conditions including seawater corrosion, erosion, marine biofouling, and cyclic temperature changes. Ordinary carbon steel and stainless steel pipes can be prone to rusting, perforation, short service life, and high maintenance costs.
C70600 copper-nickel marine piping, also known as 90/10 copper-nickel alloy piping, offers outstanding seawater-corrosion resistance and stable mechanical properties. It is therefore a mainstream choice for marine piping systems and is widely used in ship seawater cooling systems, ballast-water pipelines, fire-fighting lines, and offshore-platform process pipelines.
Product Overview
This product is a high-quality C70600 copper-nickel alloy seamless pipe, corresponding to Chinese grade BFe10-1-1 (B10 iron cupronickel). It can be manufactured in accordance with international standards such as ASTM B111, ASTM B466, and ASTM B122. Certifications from major classification societies, including CCS, ABS, DNV, LR, BV, and others, can be provided upon customer request.
The alloy uses copper as the base metal and contains 9%-11% nickel, 1.0%-1.5% iron, and an appropriate amount of manganese, forming a stable single-phase solid-solution microstructure. Nickel significantly improves corrosion resistance and strength; iron effectively enhances resistance to erosion corrosion caused by flowing seawater; and manganese further improves processing performance and corrosion resistance.