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Hamad Fasteners, a well-respected manufacturer and supplier based in Riyadh, Saudi Arabia, has built a solid reputation for providing top-notch fastening products that excel in even the toughest conditions. Among their impressive lineup, Copper Nickel 70/30 bolts stand out for their exceptional resistance to seawater corrosion, biofouling, and stress-related cracking. Crafted with precision and in line with global standards, these bolts promise a long service life, robust strength, and remarkable stability. Hamad Fasteners proudly supports various industries, including shipbuilding, offshore oil and gas, desalination, petrochemical, and power generation, by offering reliable fastening solutions tailored for critical applications.
These Copper Nickel 70/30 bolts are made up of 70% copper and 30% nickel, with carefully controlled amounts of iron and manganese to boost their strength and resistance to erosion and corrosion. This unique alloy is designed to withstand the harshness of seawater and chloride-rich environments, providing strong protection against stress-corrosion cracking. On a mechanical level, these bolts exhibit impressive tensile and yield strength, toughness, and fatigue resistance, making them perfect for long-term use in demanding marine and industrial settings. Their anti-biofouling properties further enhance their reliability in applications that involve constant exposure to seawater.
| 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.
You’ll find these bolts widely used in industries where corrosion resistance and durability are non-negotiable. Common applications include shipbuilding, marine hardware, offshore structures, desalination plants, heat exchangers, pumps, and seawater piping systems. They also play a crucial role in the power generation and petrochemical sectors, where equipment often operates in highly corrosive environments. With their blend of strength, seawater resistance, and extended service life, Copper Nickel 70/30 bolts deliver safe and efficient fastening solutions for the most demanding industrial and marine operations.
At Hamad 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.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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