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Aria Fasteners, a prominent manufacturer and supplier located in Hamilton, New Zealand, has built a solid reputation for delivering top-notch **Copper Nickel 70/30 Fasteners** designed for tough marine and industrial settings. With a keen emphasis on precision craftsmanship, durability, and resistance to corrosion, the company caters to various sectors, including shipbuilding, desalination, offshore oil and gas, and chemical processing. Their state-of-the-art production capabilities and rigorous quality assurance measures guarantee that each fastener performs reliably even in the harshest conditions. Backed by technical know-how and a customer-first approach, Aria Fasteners remains a go-to source for sturdy and long-lasting fastening solutions.
The Copper Nickel 70/30 Fasteners are crafted from an alloy that consists of about **70% copper and 30% nickel**, with small amounts of iron and manganese added to boost strength and corrosion resistance. This alloy is known for its impressive resistance to seawater, erosion, stress corrosion cracking, and biofouling. In terms of mechanics, these fasteners provide moderate tensile strength, high ductility, and reliable toughness across varying temperatures. Their stable and uniform microstructure ensures consistent performance in high-pressure and high-salinity environments, making them ideal for long-term industrial applications.
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Copper Nickel | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile strength, yield (depending on temper) | 88.0-483 MPa | 12800-70100 psi |
| Elongation at break (in 381 mm) | 45.0% | 45.0% |
| Charpy impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 57.0 GPa | 8270 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Elastic modulus | 150 GPa | 21800 ksi |
| Grade | Cupro Nickel |
| 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. |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Copper Nickel 70/30 fasteners are widely employed in marine applications such as in ships and offshore structures because of its excellent resistance to corrosion in marine environment. They are used in desalination plants because of their resistance to chloride induced corrosion. Furthermore, these fasteners are used in chemical processing industries, heat exchangers, and other industrial uses where the fasteners are needed to perform for the long-term under severe conditions.
These Copper Nickel 70/30 Fasteners are extensively used in situations that demand outstanding corrosion resistance, thermal stability, and durability. You’ll often find them in **shipbuilding, seawater cooling systems, offshore platforms, desalination plants, and marine pump assemblies**, where constant exposure to salty environments calls for exceptional durability. They’re also utilized in **heat exchangers, condensers, and seawater piping networks**, ensuring secure connections that withstand erosion and metal fatigue. Beyond the marine industry, they play a crucial role in chemical processing and coastal infrastructure projects, where reliable, corrosion-resistant fastening solutions are essential for success.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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