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Aria Fasteners stands out as a top-notch manufacturer and supplier located in Hamilton, New Zealand, focusing on high-quality Copper Nickel 90/10 Nuts designed for tough marine and industrial settings. With a reputation for precision manufacturing and a strong commitment to international standards, they ensure consistent product quality. Their clientele spans various industries, including shipbuilding, offshore operations, desalination, chemical processing, and coastal infrastructure. Aria Fasteners provides nuts that guarantee reliable performance, exceptional corrosion resistance, and long-lasting durability, even in the harshest environments. Their dedication to technical expertise, prompt delivery, and customer satisfaction has established them as a trusted source for premium copper-nickel fastening solutions, both in New Zealand and beyond.
Copper Nickel 90/10 Nuts are crafted from an alloy that consists of 90% copper and 10% nickel, with trace amounts of iron and manganese to boost their mechanical properties. This unique blend offers remarkable corrosion resistance, particularly in seawater and environments rich in chlorides. They possess moderate tensile strength, good ductility, and are resistant to biofouling and dezincification. The alloy’s excellent thermal and electrical conductivity, along with its ability to resist galvanic corrosion, makes these nuts perfect for critical applications in marine, chemical, and offshore industries where durability and corrosion resistance are paramount.
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cupro Nickel 90/10 | 88.6 min | 1.0 max | 0.05 max | 9-11 max | 1.8 max | 1 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Cupro Nickel 90/10 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| Specifications | ASTM B151 / ASME SB151 |
| Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
| Size | M3 – M100 | 3/6″ – 4″ | Custom Sizes |
| Length | 3 mm – 200 mm | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
| Surface Treatment | Passivation /plain |
| Others Factor | OEM, ODM, ±0.03MM tolerance |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
| Packing | IN BULK: carton, pallet, Small Boxes or customer request |
| Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merk blatt AD 2000 W2 Certified |
| Certification | Dual Certified As per ASTM & ASME Codes |
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 90/10 Nuts are widely used in marine applications such as in ships and offshore platforms where the material is required to have excellent resistance to corrosion in seawater. They are very essential in the desalination plants since they provide a good barrier against chloride corrosion. Moreover, these nuts are used in chemical processing industries, heat exchangers and other industrial uses where the nuts are expected to last long and perform under very harsh conditions.
Copper Nickel 90/10 Nuts find extensive use in marine, offshore, and coastal applications where high corrosion resistance and durability are crucial. They are typically paired with bolts and studs in shipbuilding, seawater piping systems, desalination plants, chemical processing equipment, and heat exchangers. Their outstanding performance in chloride-rich and corrosive environments makes them ideal for the demanding conditions of marine and offshore settings.
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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