Copper Nickel 70/30 Washers Manufacturer and Supplier in Dubai, UAE

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Majid Fasteners is a Dubai-based company in the United Arab Emirates, which deals in the manufacture and supply of fasteners that are of high quality to the different industries. The company is also known to be precise, durably lasting, and reliable in service provision to the oil and gas industry, marine, petrochemical and construction. Some of its special products include Copper Nickel 70/30 washers which are characterized by their superior resistance to corrosion, strength and thermal conductivity in severe seawater and chemical conditions. These washers offer a secure means of fastening as well as long-term functioning in the harsh industrial settings.

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What is Copper Nickel 70/30 Washers ?

Washer from Copper Nickel 70/30 is made up of 70% Copper and 30% Nickel with traces of Iron and Manganese to improve the strength, durability and corrosion resistance of Copper-Nickel 70/30. Being the best materials for protection against seawater and chloride corrosion and biofouling, Copper Nickel 70/30 are an excellent choice for marine and offshore environments. Copper Nickel 70/30 Washers have greater mechanical properties than Copper Nickel 90/10 Washers, having a tensile strength of approximately 450-550 MPa and yield strength of 200-250 MPa. Additionally, Copper Nickel 70/30 Washers have good ductility, with elongation rates of up to 35%, with hardness ratings of 100-150 HB, making them suitable for use in very demanding environments.

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Copper Nickel 70/30 Washers Specifications

Size	M02 to M33, Custom Sizes
Length	3 mm to 200 mm
Washer	UNF, BSW, BSF, METRIC, UNC, or as required
Standard of Washers	DIN 125A, DIN 125B, DIN 127B, DIN 137B, DIN 6797A, DIN 6797J, ISO 7089, DIN 7980, DIN 127 B, IS 2016, ASTM F436M, ASME B18.13, ASME B18.21.1, ASME B18.22.1, ASME B18.23.1
Form of Washers	Hex, Threading, Square, Round as per Gauge Etc.
Raw materials Source	JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin, etc.
Threads Configuration	ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification	Dual Certified As per ASTM & ASME Codes
Popular Types of Washer	Star Washer, Flat Washer, Lock Washer, Slot Washer, Machine Washer, Sealing Washer, Split Washer, Dome Tooth Washer, Countersunk Washer, Tab Washers, Spherical Washer, Square Washer, Spring Washer, Round Washers, Square Washers etc.
Threads	Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically
Test Certificate of Washers	as per EN 10204 / 3.1 Manufacturer Test Certificate
Additional Certifications	PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production process	M24-M100: hot forging, M2-M24: Cold Froging, for custom-made connecting element machining and CNC
Head drive of Washers	Six-Lobe, Phillips, Phillips/Slot, Slotted etc
Packing of Washers	IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
Surface Coating	Ptfe Coated Washers Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating
Washers finishing	Coatings & Finishes : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide,

Copper Nickel 70/30 Washers Chemical Composition

Grade	Cu	Mn	Pb	Ni	Fe	Zn
Cu-Ni 70-30	65.0 min	1 max	.05 max	29-33	0.4-1.0	1 max

Mechanical Properties of Copper Nickel 70/30 Washers

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Copper Nickel 70-30	0.323 lb/in3 at 68 F	2260 F	50000 psi	20000 psi	30 %

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Types of Copper Nickel 70/30 Washers

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Copper Nickel 70/30 Washers Uses

Copper Nickel 70/30 washers find wide application in industries that need to be strong, possess great corrosion strength, and be able to operate in harsh conditions. They can be used in marine and offshore services, such as seawater piping, shipbuilding, and desalination plants because they are better resistant to chloride corrosion and biofouling. These washers are also applied in oil and gas sector in pumps, valves, heat exchangers, and cooling systems in the presence of saline or chemically aggressive conditions. Also, they can be used in chemical processing, power generation, and HVAC systems where they can be used as a secure fastening means and long-term high-performance in harsh working conditions.

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