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Mazin Fasteners is a trusted manufacturer and supplier of Copper Nickel 70/30 Bolts, proudly based in Muscat, Oman. They specialize in providing high-performance fastening solutions tailored for tough service environments. The company follows rigorous quality control measures and adheres to international standards, ensuring that their products are durable, precise, and reliable over the long haul. With state-of-the-art manufacturing facilities and a skilled technical team, Mazin Fasteners creates bolts that can handle the challenges of aggressive marine and industrial settings. Their dedication to material traceability, consistent quality, and timely delivery makes them a go-to supplier for marine, offshore, and desalination projects.
Copper Nickel 70/30 Bolts are crafted from an alloy that consists of about 70% copper and 30% nickel, with small amounts of iron and manganese added to enhance strength and corrosion resistance. This alloy is known for its outstanding resistance to seawater corrosion, biofouling, and stress corrosion cracking. The bolts boast impressive tensile strength, high ductility, and remarkable toughness. Their mechanical properties guarantee dimensional stability, dependable load-bearing capacity, and consistent performance even under pressure and in harsh environmental conditions.
| 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 | Copper 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 | Bolts |
| Types | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts |
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 Bolts find extensive use in environments that are exposed to seawater and other aggressive marine conditions. Common applications include shipbuilding, offshore platforms, desalination plants, seawater piping systems, heat exchangers, and condensers. They are also widely used in oil and gas facilities, coastal infrastructure, and marine equipment where corrosion resistance and longevity are essential. These bolts are designed to perform reliably under constant exposure to saltwater, humidity, and fluctuating temperatures, making them perfect for safety-critical and long-lasting marine and industrial installations.
At Mazin Fasteners, our Copper Nickel 70/30 Bolts are packed in a way that they reach the clients in the best condition possible. Every bolt is covered and placed in individual well-sealed and moisture proof packages to ensure that they are not contaminated or damaged. Labeling is very important since it makes identification of the items easier and handling is also made easier. The kind of packaging we use ensures that the bolts do not lose their quality and are readily available for use, thereby underlining our policy of offering high-quality products and excellent customer relations.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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