Copper Nickel Fasteners – Global Suppliers & Exporters
Aurum Overseas is a trusted Copper Nickel Fasteners Supplier and Exporter, providing premium-quality fastening solutions engineered for marine, offshore, desalination, and seawater handling applications. Copper Nickel alloys are widely recognized for their exceptional resistance to seawater corrosion, biofouling, erosion, and chloride-rich environments, making them one of the most preferred materials for critical marine systems.
Our extensive range of Copper Nickel Fasteners includes bolts, nuts, washers, screws, stud bolts, threaded rods, U-bolts, anchor bolts, and custom fastening components manufactured according to international standards. These fasteners are extensively used in shipbuilding, offshore oil & gas facilities, naval defense projects, desalination plants, power generation units, and coastal infrastructure developments requiring long-term durability in aggressive environments.
As an experienced Copper Nickel Fasteners Exporter, Aurum Overseas supplies customers across Europe, USA, UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, and other international markets. We provide complete material traceability, inspection reports, test certificates, and reliable export logistics support for industrial projects worldwide.
Copper Nickel Fasteners – Product Overview
Copper Nickel Fasteners are manufactured using copper-nickel alloys specifically developed to withstand marine and seawater environments. The addition of nickel enhances corrosion resistance, while iron and manganese improve strength and erosion resistance.
The two most widely used grades are Copper Nickel 90/10 Fasteners (UNS C70600) and Copper Nickel 70/30 Fasteners (UNS C71500). While 90/10 offers excellent seawater corrosion resistance and cost-effectiveness, 70/30 provides enhanced strength and superior resistance to erosion and impingement attack in high-velocity seawater systems.
These fasteners are widely used in seawater piping, condensers, offshore platforms, heat exchangers, naval vessels, and desalination facilities where conventional stainless steels may not provide adequate service life.
Copper Nickel Fasteners Specifications
| Specification | Details |
|---|---|
| Material Grade | Copper Nickel Fasteners |
| Grades | UNS C70600 (Cu-Ni 90/10), UNS C71500 (Cu-Ni 70/30) |
| ASTM Standards | ASTM SB151, ASTM SB152 |
| ASME Standards | ASME SB151, ASME SB152 |
| International Standards | ASTM, ASME, BS, DIN, ISO, UNI, ANSI, GB, IS, JIS |
| ANSI Standards | ANSI B18.2.4 2M, ANSI B28.2.4 1M |
| ASME Standards | ASME B16.5, ASME B18.2.2, ASME B18.5 |
| DIN Standards | DIN 912, DIN 603, DIN 933, DIN 6923, DIN 970, DIN 931, DIN 7981, DIN 934, DIN 916, DIN 7985, DIN 7982, DIN 913 |
| Product Forms | Bolts, Nuts, Washers, Screws, Stud Bolts, Threaded Rods |
| Size Range | M4 to M100 |
| Length | 3 mm to 200 mm |
| Threads | BSF, BSW, UNF, UNC, Metric or as required |
| Surface Finish | Plain, Polished, Passivated |
| Custom Sizes | Available |
| Certification | EN 10204 3.1 / 3.2 |
| Supply Capability | Export Worldwide |
Mechanical Properties of Copper Nickel Fasteners
The mechanical properties of Copper Nickel Fasteners provide an excellent balance of strength, ductility, and resistance to marine environments. These characteristics enable long-term service performance in offshore structures and seawater handling systems.
Copper Nickel 90/10 (UNS C70600)
| Property | Value |
|---|---|
| Density | 8.94 g/cm³ |
| Tensile Strength | 310 MPa |
| Yield Strength | 105 MPa |
| Elongation | 30% |
Copper Nickel 70/30 (UNS C71500)
| Property | Value |
|---|---|
| Density | 8.95 g/cm³ |
| Tensile Strength | 360 MPa |
| Yield Strength | 125 MPa |
| Elongation | 30% |
The higher nickel content in 70/30 Copper Nickel Fasteners offers improved mechanical strength and enhanced erosion resistance, making them suitable for more demanding offshore applications.
Chemical Composition of Copper Nickel Fasteners
The outstanding seawater corrosion resistance of Copper Nickel Fasteners is achieved through carefully controlled alloy chemistry. Nickel improves corrosion resistance, while iron and manganese enhance resistance to impingement and erosion.
Copper Nickel 90/10 (UNS C70600)
| Element | Composition (%) |
|---|---|
| Copper | Balance |
| Nickel | 9.0 – 11.0 |
| Iron | 1.0 – 1.8 |
| Manganese | 1.0 Max |
Copper Nickel 70/30 (UNS C71500)
| Element | Composition (%) |
|---|---|
| Copper | Balance |
| Nickel | 29.0 – 33.0 |
| Iron | 0.4 – 1.0 |
| Manganese | 1.0 Max |
These alloy compositions allow Copper Nickel Fasteners to perform reliably in seawater systems, marine engineering projects, and coastal industrial installations.
Equivalent Grades of Copper Nickel Fasteners
Equivalent grade information helps engineers and procurement professionals source suitable fastening materials while maintaining specification compliance.
Copper Nickel Fasteners Equivalent Grades
| Grade | UNS | Common Designation |
|---|---|---|
| Copper Nickel 90/10 | C70600 | Cu-Ni 90/10 |
| Copper Nickel 70/30 | C71500 | Cu-Ni 70/30 |
These internationally recognized grades are widely accepted across marine, offshore, and industrial applications worldwide.
Types of Copper Nickel Fasteners Available for Industrial Export Projects
Copper Nickel Fasteners are supplied in a variety of configurations to support marine construction, offshore installations, desalination plants, and industrial engineering requirements.
Copper Nickel Fasteners Types Table
| Fastener Type | Typical Applications |
|---|---|
| Hex Bolts | Shipbuilding and marine structures |
| Heavy Hex Bolts | Offshore platforms |
| Stud Bolts | Flange connections |
| Threaded Rods | Equipment supports |
| Socket Head Cap Screws | Marine equipment |
| Hex Nuts | Structural assemblies |
| Lock Nuts | High-vibration applications |
| Flat Washers | Load distribution |
| Spring Washers | Dynamic systems |
| U-Bolts | Seawater piping |
| Anchor Bolts | Coastal infrastructure |
| Custom Fasteners | Project-specific applications |
Thread Standards & Size Range
| Parameter | Details |
|---|---|
| Metric Sizes | M4 to M100 |
| Thread Forms | UNC, UNF, Metric, BSW, BSF |
| Length | 3 mm to 200 mm |
| Manufacturing | Rolled & Cut Threads |
Aurum Overseas also manufactures custom Copper Nickel Fasteners according to customer drawings and project specifications.
Copper Nickel Fasteners Suppliers in Europe for Marine & Shipbuilding Applications
Aurum Overseas supplies Copper Nickel Fasteners to Germany, France, Italy, Netherlands, Norway, Spain, Belgium, Poland, and other European countries serving the marine and shipbuilding sectors. These fasteners are extensively used in naval construction, heat exchangers, cooling systems, and offshore support vessels.
European buyers prefer Copper Nickel 90/10 and 70/30 Fasteners due to their proven performance in seawater environments and their ability to withstand long-term exposure to marine conditions. Our export services include inspection certificates, traceability documentation, and dependable logistics support.
Copper Nickel Fasteners Exporters in USA for Offshore & Naval Engineering Applications
As an experienced Copper Nickel Fasteners Exporter, Aurum Overseas supplies customers across Houston, New York, Los Angeles, Seattle, New Orleans, and other major industrial hubs throughout the United States.
These fasteners are widely used in offshore drilling facilities, naval vessels, marine equipment, desalination systems, and power generation plants. We support industrial procurement teams with custom manufacturing, international certifications, and reliable delivery schedules.
Copper Nickel Fasteners Suppliers in Gulf Countries for Desalination & Energy Projects
Aurum Overseas exports Copper Nickel Fasteners to UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain for desalination plants, offshore facilities, seawater cooling systems, and energy infrastructure projects.
The exceptional seawater corrosion resistance of Copper Nickel alloys makes them particularly suitable for Gulf-region applications where high salinity and harsh environmental conditions are common.
Why Industrial Buyers Choose Aurum Overseas for Copper Nickel Fasteners
Aurum Overseas supports industrial buyers across Europe, USA, and Gulf countries with premium-quality Copper Nickel Fasteners engineered for marine, offshore, naval, and desalination applications. Our fastening solutions are manufactured to international standards and designed for long-term reliability in aggressive seawater environments.
With extensive export experience, complete material traceability, inspection documentation, and dependable global logistics, we provide certified fastening solutions for shipyards, EPC contractors, offshore operators, and industrial engineering companies worldwide.
Industries We Serve
Copper Nickel Fasteners are widely used across industries requiring exceptional resistance to seawater corrosion, biofouling, and erosion.
| Industry | Applications |
|---|---|
| Shipbuilding | Marine assemblies and hull structures |
| Offshore Oil & Gas | Platforms and subsea equipment |
| Naval Defense | Naval vessels and defense systems |
| Desalination | Seawater treatment plants |
| Power Generation | Cooling systems and condensers |
| Heat Exchangers | Tubesheets and fastening systems |
| Marine Engineering | Pumps, valves, and piping |
| Coastal Infrastructure | Ports and marine structures |
Copper Nickel Fasteners Grades Comparison for Marine Applications
The selection of Copper Nickel fastener grades depends on seawater velocity, operating conditions, and required service life.
Copper Nickel 90/10 Fasteners (UNS C70600) are widely used in seawater piping systems, condensers, and shipbuilding projects where excellent corrosion resistance and cost-effectiveness are required.
Copper Nickel 70/30 Fasteners (UNS C71500) offer improved strength and superior resistance to impingement attack, making them suitable for offshore platforms, naval applications, and high-velocity seawater systems.
For lightweight corrosion-resistant applications requiring exceptional strength, buyers may also explore Titanium Fasteners solutions.
FAQs
1. What are Copper Nickel Fasteners used for?
Copper Nickel Fasteners are commonly used in shipbuilding, offshore platforms, desalination plants,
seawater piping systems, and marine engineering projects requiring superior resistance to seawater
corrosion.
2. What is the difference between Copper Nickel 90/10 and 70/30 Fasteners?
Copper Nickel 90/10 Fasteners offer excellent seawater corrosion resistance and are widely used in
general marine applications. Copper Nickel 70/30 Fasteners provide improved strength and enhanced
resistance to erosion in high-velocity seawater systems.
3. Do you supply Copper Nickel Fasteners in the USA?
Yes, Aurum Overseas supplies Copper Nickel Fasteners throughout the USA with complete inspection
reports, material traceability, and project-specific manufacturing support.
4. Do you export Copper Nickel Fasteners to Gulf countries?
Yes, we export to UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain with proper export documentation,
secure packaging, and reliable delivery schedules.
5. Are Copper Nickel Fasteners suitable for desalination plants?
Yes, Copper Nickel Fasteners are extensively used in desalination facilities due to their outstanding
resistance to seawater corrosion and biofouling.
6. Can you provide custom Copper Nickel Fasteners?
Yes, we manufacture custom sizes, thread forms, and fastening configurations according to customer
drawings and project specifications.
Request a Quote
Looking for a dependable Copper Nickel Fasteners Supplier for a marine, offshore, desalination, or naval engineering project? Aurum Overseas supplies certified fastening solutions manufactured to international standards with complete material traceability and inspection documentation.
Whether you require Copper Nickel bolts, nuts, washers, stud bolts, threaded rods, or custom-engineered fasteners, our team can assist with material selection, technical specifications, export documentation, and worldwide logistics support. Share your project requirements today to receive a competitive quotation and expert assistance for your fastening needs.
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