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Punit Fasteners is a reliable manufacturer and supplier of Copper Nickel Nuts in Delhi, India, providing corrosion-resistant fastening solutions for marine and chemical sectors. Made from high-grade copper-nickel alloys (usually 70/30 or 90/10), these nuts are perfect for seawater, salt-laden air, and corrosive industrial settings. With strong strength, great ductility, and outstanding resistance to chloride-induced corrosion and biofouling, Copper Nickel Nuts ensure secure and lasting fastening in submerged or chemically exposed systems. Punit Fasteners supplies nuts that meet global quality standards and can be used with copper-nickel bolts or fasteners in critical setups.
Copper Nickel Nuts mainly consist of copper (70–90%) and nickel (10–30%), with trace amounts of iron and manganese for better strength and corrosion resistance. These nuts typically have a moderate tensile strength (300–500 MPa), excellent corrosion resistance in seawater and marine environments, and good thermal and electrical conductivity. They are non-magnetic, highly resistant to stress corrosion cracking, and maintain their strength over extended periods in saline or chemical environments. Their smooth threading and stable performance ensure dependable fastening in both dynamic and static assemblies.
| Copper Nickel | Ni | Pb | Cu | Fe | Mn | Zn |
| 9-11 max | 0.05 max | 88.6 min | 1.8 max | 1.0 max | 1 max |
| Density | Elongation | Yield Strength (0.2%Offset) | Melting Point | Tensile Strength |
| 8.1 g/cm3 | 30 % | Psi – 35,000, MPa – 241 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 |
|
Material |
Specification |
Standards |
Size |
|
Cupro Nickel
|
ASTM
|
ASTM B151, B152 |
M10 to M100
|
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 Nuts are widely used in marine and shipbuilding, especially in cooling systems, heat exchangers, hull fittings, and seawater piping. They are essential in desalination plants, offshore platforms, and naval vessels due to their anti-fouling and corrosion-resistant traits. In chemical processing plants, these nuts offer long-lasting stability in acidic or chloride-rich environments. Their non-sparking and non-magnetic qualities make them suitable for explosive situations and sensitive electronic devices. Copper Nickel Nuts are designed for reliable use in submerged, high-humidity, or corrosive setups that require both strength and resistance to degradation over time.
Copper Nickel nuts at Punit Fasteners are packed in order to retain the quality of the product and we take utmost care while packing. Every nut is covered separately to avoid getting damaged, corroded or contaminated in the course of transportation. We employ strong cartons and ensure that we provide packaging services that meet your requirements. This is through proper labeling and packing to ensure that the products are well arranged and can easily be identified, and this is our way of ensuring that we provide quality products in good condition.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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