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At Hazlewood Fasteners, we supply and manufacture high-quality Copper Nickel 90/10 Stud Bolts in Canberra, Australia, engineered for outstanding performance in harsh marine and industrial environments. Made from a durable 90% copper and 10% nickel alloy, these stud bolts provide excellent resistance against seawater corrosion, biofouling, and erosion. They are widely relied upon in systems exposed to saltwater, high pressure, and temperature shifts. Copper Nickel 90/10 Stud Bolts offer stable fastening, long service life, and secure joint integrity, making them a preferred choice for shipbuilding, desalination plants, heat exchangers, offshore structures, and coastal process installations.
Copper Nickel 90/10 Stud Bolts are composed of 90% copper and 10% nickel, with controlled additions of iron and manganese to enhance strength and corrosion resistance. This alloy provides excellent protection against pitting, stress corrosion cracking, and erosion in flowing seawater systems. With a tensile strength of approximately 350 MPa and reliable ductility, these stud bolts maintain stability under mechanical and thermal stress. They also retain their structural performance in high-moisture and chloride-rich environments, ensuring long-term fastening reliability.
| 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 Stud Bolts are commonly used in shipbuilding, offshore platforms, desalination equipment, heat exchanger tube sheets, marine pump systems, and seawater cooling circuits. Their corrosion resistance makes them ideal for valves, flanges, piping systems, and intake structures exposed to constant saline environments. These stud bolts also perform well in chemical processing plants and power generation units, where reliability and anti-corrosive performance are critical. Hazlewood Fasteners’ Copper Nickel 90/10 Stud Bolts ensure strong, stable, and long-lasting fastening solutions — engineered to operate efficiently and safely even in the toughest coastal and marine environments.
Our Stud Bolts Copper Nickel 90/10 at Hazlewood Fasteners are packed in a way that retains their quality. Stud bolts are protected and packed individually in moisture proof containers to avoid any harm or contamination to the bolts. Proper labeling makes identification and handling to be easy since anyone can identify the product just by looking at the label. The packaging process ensures that the stud bolts are properly packed to ensure that they are not damaged during transport and are ready for use as soon as they get to the end user, thus our promise of quality product and excellent customer service.
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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