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Lina Fasteners is a reputable manufacturer and supplier based in Tunis, Tunisia, specializing in high-quality Copper Nickel 70/30 Washers that are built to resist corrosion and last a long time. These washers are crafted to meet international standards, ensuring reliable sealing, even load distribution, and exceptional performance in both marine and challenging environments. With a focus on using top-notch Cu-Ni alloys, cutting-edge manufacturing methods, and rigorous quality control, Lina Fasteners guarantees precise dimensions and consistent quality. Their durable washer solutions are widely used in marine engineering, shipbuilding, offshore projects, desalination, and heat exchangers, all delivered on time.
Copper Nickel 70/30 Washers are made up of about 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 impressive resistance to seawater corrosion, biofouling, and stress corrosion cracking. The washers demonstrate good tensile strength, high toughness, and excellent ductility. They maintain their shape under load, perform well across a broad temperature range, and ensure reliable sealing and load distribution in tough marine conditions
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.
Copper Nickel 70/30 Washers are commonly found in marine and offshore settings where seawater corrosion resistance is crucial. They are frequently used in shipbuilding, seawater piping systems, heat exchangers, condensers, and desalination facilities. These washers are also essential in offshore platforms, coastal power plants, and marine hardware assemblies. Additionally, they play a vital role in the oil and gas industry, chemical processing, and HVAC systems that deal with saline or corrosive fluids. By providing effective load distribution and corrosion protection, Copper Nickel 70/30 Washers are a reliable choice for various applications.
Our Copper Nickel 70/30 washers at Lina 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.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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