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At Hazlewood Fasteners, we are a trusted manufacturer and supplier of Copper Nickel 90/10 Nuts in Canberra, Australia, delivering reliable fastening solutions for marine and industrial environments. These nuts are crafted from a high-quality 90% copper and 10% nickel alloy, known for its outstanding corrosion resistance and durability in seawater and brine conditions. Copper Nickel 90/10 Nuts are designed to provide strong, secure, and long-lasting connections, even under high pressure and temperature. Their excellent mechanical properties make them an ideal choice for shipbuilding, offshore platforms, desalination plants, and heat exchanger systems
Copper Nickel 90/10 Nuts are composed of 90% copper and 10% nickel, with minor additions of iron and manganese to enhance strength and corrosion resistance. This alloy provides excellent protection against oxidation, biofouling, and stress corrosion cracking in marine and industrial environments. With a tensile strength of around 350 MPa and yield strength near 105 MPa, these nuts offer superior ductility, thermal conductivity, and long-term stability. Their balanced composition ensures dependable performance and resistance to erosion, even in harsh, high-salinity conditions.
| 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 extensively used in marine engineering, shipbuilding, offshore structures, and seawater piping systems. Their excellent corrosion resistance makes them perfect for desalination plants, heat exchangers, valves, and condensers. They are also used in power generation units and chemical processing industries where reliability and resistance to corrosion are crucial. These nuts ensure secure fastening and long service life even in continuous seawater exposure. Hazlewood Fasteners’ Copper Nickel 90/10 Nuts are known for their precision, endurance, and performance — making them a trusted choice for challenging marine and industrial applications.
Our Copper Nickel 90/10 Nuts at Hazlewood Fasteners are properly packed so that they do not reach the client in a damaged state. Every nut is covered and packed separately in strong and moisture-proof packets to avoid the spoilage and deterioration. Proper labeling helps in quick identification and management of the items. Our packing process ensures that the nuts do not lose their quality and are ready for use, which is a clear depiction of our quality products and excellent customer relations.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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