Home > Copper Nickel > Copper Nickel 70/30 Flanges
From its base in Canberra, Australia, Marsh Nickel Alloys has built a strong reputation for supplying high-performance materials to demanding industries worldwide. We are particularly proud of our role as a trusted manufacturer and supplier of Copper Nickel 7030 Flanges for partners in Canberra, Australia. Our commitment lies in providing not just a product, but a reliable solution, backed by rigorous quality control and a deep understanding of the challenging marine and industrial environments our clients operate in.
The exceptional durability of Copper Nickel 7030 Flanges stems from their specific makeup. The alloy primarily consists of copper with a 30% nickel addition, along with small amounts of iron and manganese. This composition grants it outstanding mechanical properties, including excellent tensile strength and remarkable corrosion resistance. It’s particularly resistant to seawater corrosion, biofouling, and stress-corrosion cracking, making it incredibly tough and long-lasting even under the most punishing conditions.
| Size | : | ½” to 12″ |
| Specification | : | ASTM / ASME SB 61 / 62 / 151 / 152. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Class | : | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN. |
| Dimensions | : | ANSI/ASME B16.5, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Grades | : | UNS C71500 (CU -NI- 70/30) |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Copper Nickel 70/30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 0.323 lb/in3 at 68 F | 50000 psi | 20000 psi | 30 % |
These flanges are indispensable in settings where failure is not an option. In Canberra and across the UAE, they are the preferred choice for critical seawater systems in desalination plants, offshore oil and gas platforms, and shipbuilding. You’ll find them connecting pipes in condenser tubes, heat exchangers, and fire-fighting systems on marine vessels. Their reliability ensures the smooth and safe operation of infrastructure that is vital to the region’s economy and daily life, handling high pressures and corrosive flows with unwavering integrity.
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Copper Nickel 70/30 flanges are widely used in shipbuilding, offshore oil and gas platforms, desalination plants, etc. due to their outstanding corrosion resistance in marine applications. Moreover, these flanges are used in heat exchangers, condensers and cooling systems, where durability and resistance to biofouling are required the ability to withstand harsh environmental conditions makes them desirable for critical marine and industrial applications.
