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Aria Fasteners, a well-respected manufacturer and supplier located in Hamilton, New Zealand, is known for its top-notch **Copper Nickel 70/30 Bolts** that are built to withstand the toughest marine and industrial conditions. The company prides itself on precision engineering, durability, and exceptional corrosion resistance, making their products perfect for applications that demand long-lasting performance in seawater and chemically aggressive environments. With state-of-the-art manufacturing facilities and rigorous quality assurance processes, Aria Fasteners guarantees that every bolt meets international standards. Their commitment to customer satisfaction, technical know-how, and dependable supply has made them a go-to source for sturdy fastening solutions across various industries.
Copper Nickel 70/30 Bolts are crafted from an alloy that consists of about **70% copper and 30% nickel**, along with some iron and manganese to enhance strength and corrosion resistance. This alloy is celebrated for its remarkable ability to resist seawater corrosion, biofouling, erosion, and stress corrosion cracking. In terms of mechanics, these bolts provide moderate tensile strength, excellent ductility, and stable toughness across a range of temperatures. The alloy’s uniform microstructure ensures consistent performance in high-salinity, high-pressure settings, guaranteeing a long service life even in demanding operational conditions.
| 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 | Copper 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 | Bolts |
| Types | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts |
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 Bolts are widely used in marine applications such as in ships and offshore platforms because of the material’s ability to withstand corrosion in marine environment. They are useful in the desalination plants where the resistance to chloride corrosion is very important. Also, these bolts are used in chemical processing industries, heat exchangers, and other industries where long-term performance under severe conditions is desired.
These Copper Nickel 70/30 Bolts are widely utilized in situations where outstanding corrosion resistance and durability are crucial. You’ll often find them in **shipbuilding, offshore platforms, desalination units, and seawater cooling systems**, where constant exposure to salty environments calls for reliable fastening. They’re also used in **heat exchangers, condensers, marine pumps, and seawater piping systems**, providing secure fastening that stands up to erosion and mechanical wear. Beyond marine applications, they find their place in chemical processing plants and coastal infrastructure projects, where long-lasting, corrosion-resistant components are essential.
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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