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MUKAU FASTENERS, a well-respected manufacturer and supplier based in Kinshasa, Congo, specializes in top-notch Copper Nickel 70/30 Washers designed for the toughest marine and industrial settings. These washers are highly regarded for their outstanding resistance to seawater corrosion, stress cracking, and biofouling. MUKAU FASTENERS takes pride in ensuring that each washer is meticulously crafted to provide durability, reliability, and exceptional performance even under high pressure and temperature conditions. The Copper Nickel 70/30 Washers are perfect for applications in shipbuilding, offshore platforms, heat exchangers, and desalination plants, where strength and longevity are crucial.
Copper Nickel 70/30 Washers are crafted from an alloy that consists of 70% copper and 30% nickel, with small amounts of iron and manganese added to boost strength and corrosion resistance. They boast impressive tensile and yield strength, high ductility, and remarkable resistance to erosion and seawater corrosion. These washers maintain their mechanical integrity even under significant thermal and mechanical stress, making them an excellent choice for marine and industrial applications.
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 extensively utilized in marine engineering, shipbuilding, and offshore installations due to their exceptional corrosion resistance in seawater environments. You’ll often find them in condensers, heat exchangers, desalination plants, and seawater piping systems. Additionally, these washers play a vital role in power generation, chemical processing, and the oil and gas industries, where resistance to high salinity and temperature is critical. Copper Nickel 70/30 Washers ensure secure, corrosion-free joints in essential applications that demand long-lasting strength and reliability in harsh environmental conditions.
Our Copper Nickel 70/30 washers at Mukau 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.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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