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Marsh Nickel Alloys, based in Canberra, Australia, is a leading manufacturer and supplier of premium metal fasteners and alloys for industrial and marine applications. Among their high-quality products are Copper Nickel Bolts, designed for strength, durability, and resistance to harsh environments. Each bolt is manufactured under strict quality control to ensure precision, uniformity, and long-lasting performance. Trusted by industries that rely on corrosion-resistant materials, Marsh Nickel Alloys provides Copper Nickel Bolts suitable for critical mechanical and structural applications. Their focus on quality and reliability makes them a preferred supplier across Australia and internationally.
Copper Nickel Bolts are made primarily of copper with 10–30% nickel, often including small amounts of iron and manganese to enhance strength and corrosion resistance. This composition gives the bolts high tensile strength, excellent ductility, and superior resistance to seawater and chemical corrosion. Tensile strength typically ranges between 300–500 MPa. They retain mechanical stability under high stress and temperature, while their smooth surface ensures easy threading and fastening. Copper Nickel Bolts combine toughness and reliability, making them ideal for demanding applications in marine, industrial, and engineering projects.
| Grade | Cupro Nickel 70/30 (UNS C71500) |
| Specifications | ASTM / ASME SB 151, SB 152 |
| Standards | DIN, ASTM, BS and all International Standards |
| Length | UPTO 5 METERS |
| Size | M4 To M100 | Custom Sizes |
| Form | Nuts, Bolts, Washers, Screw |
| Types | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts, Hex Head Nut, Eye Nut, Dome Nut, Coupling Nut, Square Nut, Acorn Nut,Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Socket Head Screws, Concrete Screws, Shoulder Screws, Threaded Screws, Machine Screws, Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer etc. |
| 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 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
At Marsh Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Copper Nickel Bolts in Canberra, Australia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Australia, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Copper Nickel Bolts are widely used in marine and offshore industries, including shipbuilding, offshore platforms, and seawater piping systems, because of their excellent corrosion resistance. They are also essential in chemical plants, desalination facilities, and power plants for securing equipment exposed to harsh conditions. The bolts are suitable for automotive, mechanical, and structural applications, where durability and resistance to rust are critical. Their ability to withstand high stress and aggressive environments makes them reliable for critical fastening applications. Copper Nickel Bolts are valued wherever strong, long-lasting, and corrosion-resistant fasteners are required.
