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Puri Fasteners, a leading manufacturer and supplier in Chennai, specializes in high-quality Copper Nickel 70/30 Fasteners, designed for industries that demand exceptional corrosion resistance and durability. These fasteners are crafted using premium-grade copper-nickel alloys, ensuring long-lasting performance even in harsh and saline environments. Copper Nickel 70/30 Fasteners offer excellent mechanical strength, reliability, and resistance to biofouling and corrosion, making them ideal for marine, offshore, and chemical applications. Puri Fasteners is committed to providing precision-engineered products with consistent quality and timely delivery, making them a preferred choice for industries seeking secure, durable, and high-performance fastening solutions.
Copper Nickel 70/30 Fasteners are made from an alloy consisting of 70% copper and 30% nickel, sometimes with small additions of iron or manganese to enhance strength and corrosion resistance. This composition ensures excellent resistance to seawater, biofouling, and chemical corrosion. The fasteners provide high tensile and yield strength, good toughness, and superior fatigue resistance, even under harsh environmental conditions. Their excellent mechanical properties combined with outstanding corrosion resistance make Copper Nickel 70/30 Fasteners reliable for critical applications in marine, offshore, and chemical processing industries.
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Copper Nickel | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile strength, yield (depending on temper) | 88.0-483 MPa | 12800-70100 psi |
| Elongation at break (in 381 mm) | 45.0% | 45.0% |
| Charpy impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 57.0 GPa | 8270 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Elastic modulus | 150 GPa | 21800 ksi |
| Grade | Cupro Nickel |
| Specifications | ASTM / ASME SB 151, SB 152 |
| Standards | DIN, ASTM, BS and all International Standards |
| Length | UPTO 5 METERS |
| Size | M4 To M100 | Custom Sizes |
| Form | Nuts, Bolts, Washers, Screw |
| Types | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts, Hex Head Nut, Eye Nut, Dome Nut, Coupling Nut, Square Nut, Acorn Nut, Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Socket Head Screws, Concrete Screws, Shoulder Screws, Threaded Screws, Machine Screws, Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer etc. |
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 70/30 Fasteners are widely used in industries exposed to corrosive or saline environments. They are commonly applied in shipbuilding, marine engineering, offshore platforms, and desalination plants due to their excellent resistance to seawater corrosion and biofouling. These fasteners are also suitable for chemical processing units, pipelines, heat exchangers, and condenser systems where durability and corrosion resistance are critical. Additionally, they are used in power generation, HVAC, and industrial water treatment systems. Their ability to withstand harsh environments while maintaining mechanical strength makes Copper Nickel 70/30 Fasteners a dependable and long-lasting choice for demanding applications.
At Puri Fasteners are packaged in a way that retains the quality of Copper Nickel 70/30. The fasteners are also protected and packed separately in strong and moisture proof packs to avoid rusting and contamination. Proper labeling makes it easier to identify the product and also makes handling easier. Our accurate packaging ensures that the fasteners reach the customers in the right condition and are usable immediately, which is a testimony of our quality products and excellent customer relations.
Puri Fasteners is a leading manufacturer and supplier of high-quality fasteners in Chennai, India, with over 8 years of experience serving global industries.
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