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At Hazlewood Fasteners in Canberra, Australia, our Copper Nickel 90/10 fasteners are engineered for superior durability in seawater-dominated and corrosive industrial environments. Designed to withstand salt exposure, brine turbulence, and demanding marine atmospheres, these fasteners provide exceptional stability and longevity where ordinary steel surrenders. Built for desalination plants, naval equipment, ocean-exposed infrastructure, and seawater cooling systems, Cu-Ni 90/10 fasteners deliver unwavering fastening strength and metallurgical resilience. When your operations demand economical yet robust marine-grade performance with long-term corrosion immunity, our 90/10 copper-nickel fasteners stand as the steadfast solution for harsh, chloride-rich environments.
Copper Nickel 90/10 fasteners are composed of approximately 90% copper and 10% nickel, enhanced with trace iron and manganese to boost mechanical strength and seawater resistance. This alloy provides strong resistance to saltwater corrosion, scaling, stress-corrosion cracking, and microbial attack, particularly in steady-flow marine systems. Offering dependable tensile performance, stable preload retention, and excellent thermal conductivity, these fasteners perform reliably under dynamic pressures, thermal fluctuations, and moisture-saturated environments, ensuring secure fastening integrity in marine and industrial fluid applications.
| 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 | DIN, ISO ,JIS ,GB, IS, BS, ASTM |
| Standard | ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 |
| Size | M0.2 to M33 | 3/6″ to 2″ | Custom Sizes |
| Length | 3 mm to 200 mm | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| 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 |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc. |
| Packing | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
| Surface Coating | Cadmium Coating Hot Dipped Galvanizing Coating Ptfe Coated Phosphate Coating Teflon Coating Xylon Coating Zinc Coating |
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 fasteners are widely used in seawater handling systems, shipyards, naval machinery, hull fittings, coastal energy plants, marine engines, heat-exchanger assemblies, desalination projects, and industrial cooling systems. Ideal for brackish and saltwater installations, they secure piping, pumps, valves, marine hardware, condensers, ballast systems, and fluid-transfer equipment in high-chloride zones. Their metallurgical compatibility prevents galvanic corrosion with Cu-Ni piping and marine alloys. Wherever long-term seawater resistance, biofouling protection, and stable mechanical performance are essential, Cu-Ni 90/10 fasteners ensure reinforced reliability and enduring marine-grade fastening security.
Our Copper Nickel 90/10 fasteners at Hazlewood Fasteners are packed to ensure that they do not lose their quality. Every fastener is covered and packed in a strong and moisture proof packet to ensure that they are not damaged or contaminated. Proper labeling helps in identification and sorting since it enables one to know what is where and how to manage it. Our packaging method is very keen in a way that the fasteners are delivered in perfect condition and are usable immediately to show 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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