Home > Copper Nickel > Copper Nickel 70/30 Stud Bolts
From our base in Canberra, Marsh Nickel Alloys has built a strong reputation for supplying high-performance materials to demanding industries worldwide. We take great pride in our role as a trusted manufacturer and supplier, especially for critical components like Copper Nickel 7030 stud bolts. Our partnership with clients in Canberra, Australia, is founded on a commitment to reliability and quality, ensuring that even the most challenging marine and industrial projects are supported by materials engineered for exceptional endurance and corrosion resistance.
Copper Nickel 7030, often called cupronickel, is an alloy known for its outstanding toughness. It primarily consists of about 70% copper and 30% nickel, with small additions of iron and manganese that significantly enhance its strength and resistance to seawater corrosion. This composition gives the stud bolts excellent mechanical properties, including high tensile strength and good ductility. They are capable of withstanding substantial loads and severe environmental conditions without succumbing to stress cracking, making them incredibly dependable for long-term use.
| Specifications | ASTM B151 / ASME SB151 |
| Diameter | 1/4″-3″ Matric:M27 to M72 in length 2000mm |
| Dimensions | DIN 975/976, ASME B18.2.1, B18.31.3, B16.5 |
| DIN Standard | B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913 |
| UTS | NPT, UNS, UNF, UNC, UNEF, NPTF |
| ISO | ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards |
| Threads | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Type | Cold Forged, Hot Forged, Bar Stock Machined, Bar Stock Milling |
| Element | 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 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Copper Nickel 70/30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
The primary use for these robust stud bolts is in the harsh marine environments found throughout the Australia and the wider Gulf region. They are essential for securing critical components in shipbuilding, offshore oil and gas platforms, and desalination plants, where constant exposure to saltwater would quickly degrade lesser materials. Their reliability also makes them a preferred choice for power generation condensers and various chemical processing equipment. By choosing these stud bolts, engineers in Canberra are investing in the integrity and safety of their installations, preventing costly failures and ensuring operational continuity for years to come.
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Copper Nickel 70/30 stud bolts are widely used in marine and offshore applications due to their unusual resistance to sea corrosion and biofouling and are ideal for securing flange valves and pipelines in shipbuilding, desalination plants and in oil and gas platforms. These bolts are used in heat exchangers and condensers where high temperature and corrosion resistance are required. In addition, copper nickel 70/30 stud bolts are used in the electrical generation and chemical industry, where they provide a reliable fastening solution in harsh and hot environments, and monitoring realize the authenticity and durability of materials and equipment.
