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Murad Fasteners stands out as a top manufacturer and supplier in Doha, Qatar, specializing in high-quality Copper Nickel 90/10 Washers. These washers are crafted for outstanding corrosion resistance, durability, and dependable performance. Using cutting-edge production methods and rigorous quality checks, Murad Fasteners ensures that each washer boasts precise dimensions, a smooth surface finish, and consistent performance even in tough industrial and marine settings. They offer Copper Nickel 90/10 Washers in a variety of sizes and specifications to align with international standards and specific project needs. These washers are commonly utilized in offshore, marine, and chemical industries throughout Qatar and the Middle East, providing secure load distribution and bolstering the integrity of bolted connections.
Made from a copper-nickel alloy that contains 90% copper and 10% nickel, with trace amounts of iron and manganese for added strength, Copper Nickel 90/10 Washers excel in resisting seawater corrosion, biofouling, and erosion. Their mechanical properties include impressive tensile strength, high ductility, toughness, and stability under varying temperatures and pressures. These washers deliver reliable load-bearing performance, resist wear, and ensure long-lasting functionality in challenging marine and chemical environments.
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Copper Nickel 90/10 | 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 |
| Copper Nickel 90/10 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| Specifications | ASTM B151 / ASME SB151 |
| Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
| Size | M3 – M100 | 3/6″ – 4″ | Custom Sizes |
| Length | 3 mm – 200 mm | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Form | Square, Round as per Gauge Etc. |
| Head | Square, Round, Plain |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
| Surface Treatment | Passivation /plain |
| Others Factor | OEM, ODM, ±0.03MM tolerance |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
| Packing | IN BULK: carton, pallet, Small Boxes or customer request |
| Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merk blatt AD 2000 W2 Certified |
| Certification | Dual Certified As per ASTM & ASME Codes |
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 90/10 Washers are a go-to choice for applications that demand corrosion-resistant and durable fastening solutions. They find common use in marine and offshore structures, shipbuilding, desalination plants, heat exchangers, condensers, and piping systems. Additionally, they are essential in chemical processing, power generation, and coastal infrastructure projects. Thanks to their extended service life, resistance to seawater and harsh media, and low maintenance requirements, Copper Nickel 90/10 Washers are perfect for flanged joints, bolted connections, and critical assemblies that face tough and saline conditions, ensuring secure and reliable performance.
Copper Nickel 90/10 washers at Murad Fasteners are packed in a proper manner to ensure that they do not lose their quality. Every washer is protected and packed separately in strong and moisture-proof containers to avoid any harm or contamination. This makes it easier to identify the products and also to handle them since they are well labeled. It is for this reason that our packaging process is very thorough to ensure that the washers get to the customers in the best condition possible and be usable right from the packaging.
Murad Fasteners is a leading manufacturer and supplier of high-quality fasteners in Doha, Qatar, with over 8 years of experience serving global industries.
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