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Hamad Fasteners, a reputable manufacturer and supplier based in Riyadh, Saudi Arabia, is well-known for delivering top-notch fastening products that adhere to global standards. Among their impressive lineup, Copper Nickel 70/30 washers stand out for their exceptional resistance to seawater corrosion, along with their durability and reliability in tough environments. Crafted with precision to guarantee superior quality, these washers offer remarkable strength and performance in both marine and industrial settings. With a strong focus on quality, timely delivery, and customer satisfaction, Hamad Fasteners proudly supports industries such as shipbuilding, desalination, offshore operations, petrochemicals, and power generation with trustworthy fastening solutions.
Copper Nickel 70/30 washers are made up of 70% copper and 30% nickel, with small amounts of iron and manganese added to boost strength and corrosion resistance. This alloy is known for its excellent resistance to seawater, brine, and chloride-rich environments, as well as its ability to withstand stress-corrosion cracking and erosion. Mechanically, these washers deliver dependable tensile and yield strength, good toughness, and long-lasting stability. Their anti-biofouling properties make them especially suitable for prolonged exposure to marine environments, where other materials might deteriorate quickly.
Grade | Cu | Mn | Pb | Ni | Fe | Zn |
Cupro Nickel 70/30 | 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 70/30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| Specifications | ASTM / ASME SB 61 / 62 / 151 / 152 |
| Dimensions | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Size | 1/2” to 12″ |
| Standards | ASTM, ASME Washer, ANSI Washer, DIN Washer, EN Washer, BS Washer etc |
| Grade | Copper & Copper Nickel Nickel 70/30 (C71500) |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN |
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.
These washers find extensive use in industries that demand fasteners capable of enduring corrosive and marine conditions. Typical applications include shipbuilding, offshore platforms, desalination plants, heat exchangers, pumps, and valves. They are also utilized in seawater piping systems and condensers, where durability and erosion resistance are crucial. The blend of strength, seawater resistance, and extended service life makes Copper Nickel 70/30 washers the perfect choice for critical fastening applications, ensuring safety, reliability, and efficiency in challenging operational environments.
Our Copper Nickel 70/30 washers at Hamad Fasteners are carefully packed to ensure that they do not lose their quality. These washers are protected and packed separately in hard containers to avoid any harm and contamination from moisture. Proper labeling makes it easier to locate and manage the items for the best results. The packaging process is very accurate to ensure that the washers reach their destination in perfect condition and are usable as soon as they get to the client, which is a clear indication of our dedication to providing high-quality products and excellent services to our clients.
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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