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Copper Nickel 70/30 is an alloy of copper and nickel, valued for its superior strength and corrosion-resistant properties. The chemical composition of this alloy flange consists of 70% copper, 29.5-30% nickel and a small percentage of iron and manganese with trace elements such as lead, carbon, zinc, and phosphorus. These chemical unit ratios are carefully balanced to maximize the performance potential of the stainless steel flanges while offering excellent corrosion resistance against acids, brines, and alkalis. Additionally, Copper Nickel 70/30 flanges deliver superior load-bearing strength in colder environments, making them ideal for use in extreme marine conditions, cooling systems and petroleum industries.

Copper Nickel 70 30 flanges are an excellent choice for fittings used in seawater applications, including water pipes and condensers. They are renowned for their exceptional corrosion resistance to various compounds, making them a safe and cost-effective option. They can handle temperatures ranging from -29 °C up to 200 °C and higher pressures compared to other brass alloys available on the market. Copper Nickel 70 30 flanges can also be used in most heavy engineering applications due to their adequate tensile and yield strength capabilities. Their hardness is also much greater than that of galvanized steel flanges, allowing them to deliver excellent fatigue and wear resistance performance, even over a long period.

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