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Mira Fasteners is a prominent manufacturer and supplier of Copper Nickel 90/10 Nuts in Kuala Lumpur, Malaysia. Made up of 90% copper and 10% nickel, the nuts provide exceptional resistance against corrosion in saltwater, erosion, and biofouling. Best suited for marine, desalination, and shipbuilding use, our 90/10 Cu-Ni nuts are designed to ASTM B151 and DIN 2.0872 standards. Hex nuts, lock nuts, and special designs to suit subsea and shore installations are provided. Mira Fasteners delivers precise threading, fine finish, and reliable mechanical performance for corrosion-critical applications.
Copper Nickel 90/10 Nuts consist of 90% copper, 10% nickel, with trace iron and manganese. They exhibit tensile strengths between 300–400 MPa, with good ductility. They are resistant to chloride stress corrosion, hydrogen embrittlement, and biofouling. They exhibit strength and stability from cryogenic temperatures to 300°C. Mira Fasteners provides consistent thread pitch, non-magnetism, and corrosion-resistant surface treatments.
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cupro 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 |
| Cupro 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 | Hex, Threading, Square, Round as per Gauge Etc. |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
| 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 Nuts are widely utilized in shipbuilding, seawater cooling systems, desalination plants, offshore platforms, and marine heat exchangers due to their anti-biofouling properties. They are perfect for use in submerged or splash zone applications. They can be employed in pump housings, flanged joints, and condensers under corrosive environments. Mira Fasteners provides Cu-Ni 90/10 nuts that work efficiently in high-salinity and aggressive media, providing long-term fastening in marine and industrial applications.
Our Copper Nickel 90/10 Nuts at Mira Fasteners are properly packed so that they do not reach the client in a damaged state. Every nut is covered and packed separately in strong and moisture-proof packets to avoid the spoilage and deterioration. Proper labeling helps in quick identification and management of the items. Our packing process ensures that the nuts do not lose their quality and are ready for use, which is a clear depiction of our quality products and excellent customer relations.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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