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Nickel Welding Wire

ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications
ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

Product Details

ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

Our ERNiCu-7 Monel 400 Welding Wire is a top-tier solution for marine environments where corrosion resistance is non-negotiable. This nickel-copper alloy wire is designed for Gas Tungsten Arc Welding (GTAW) and Gas Metal Arc Welding (GMAW), delivering strong, durable welds that stand up to seawater, brine, and acidic conditions. Compliant with AWS A5.14 standards, it’s optimized for welding Monel 400 and similar nickel-copper alloys, ensuring exceptional performance in harsh marine settings. Its high copper content enhances corrosion resistance, while the low carbon composition minimizes cracking, producing clean, reliable welds.

This wire is built for tough jobs, from shipbuilding to offshore platforms, where equipment faces constant exposure to saltwater and chloride-rich environments. It resists pitting, crevice corrosion, and stress corrosion cracking, making it a go-to for marine applications. Whether you’re joining dissimilar metals or fabricating critical components, our ERNiCu-7 wire offers outstanding weldability and long-lasting results, keeping your projects on track and your equipment corrosion-free.

For more other size details, pls directly contact us

The marine industry is riding a wave of growth, driven by global demand for shipbuilding, offshore energy, and desalination plants. The maritime sector is projected to expand through 2035, fueled by increased trade, offshore oil and gas exploration, and renewable energy projects like offshore wind farms, particularly in regions like Asia-Pacific and Europe. These applications demand materials that can withstand relentless corrosion from seawater and harsh weather, making our ERNiCu-7 Monel 400 wire a critical asset.

Key trends include a push for durable, corrosion-resistant materials that reduce maintenance costs and extend equipment lifespans, aligning with sustainability goals. Automated welding technologies, such as robotic TIG and MIG systems, are gaining traction, requiring wires that deliver precision and consistency. The rise of green energy, including offshore wind and wave energy systems, is increasing the need for alloys that resist corrosion in chloride-rich environments. Stricter environmental regulations are also driving demand for materials that prevent leaks and failures, ensuring safety and compliance.

Supply chain reliability is a major focus, as global disruptions emphasize the need for dependable suppliers with fast delivery. Our ERNiCu-7 wire meets these demands, offering consistent quality and quick turnaround to keep marine projects on schedule. The industry’s emphasis on sustainability means our wire’s durability helps reduce replacements and waste, supporting long-term operational efficiency.

AWS Classification Applications
ERNiCr-3 Used for welding 600, 601, and 800 alloys and dissimilar welding between stainless steel and carbon steel
ERNiCrFe-7 Suitable for welding nickel-chromium-iron alloys under ASTM B163, B166, B167, and B168 standards
ERNiCrFe-6 Designed for welding steel to nickel-chromium-iron alloys, as well as stainless steel to nickel-based alloys
ERNiCrCoMo-1 Used for welding nickel-chromium-cobalt-molybdenum alloys and various high-temperature alloys
ERNiCrMo-3 Suitable for nickel alloy, carbon steel, stainless steel, and low alloy steel welding, primarily used for 625, 601, 802 alloys, and 9% nickel alloys
ERNi-CI Used for welding commercially pure nickel, malleable cast iron, and gray cast iron
ERCuNi Suitable for welding 70/30, 80/20, and 90/10 copper-nickel alloys
ERNiCu-7 Used for welding nickel-copper alloys such as B127, B163, B164, and B165
ERNi-1 Designed for welding pure nickel castings and forgings, including those under ASTM B160, B161, B162, and B163 standards
ERNiFeMn-CI Suitable for welding nodular cast iron, ductile iron, malleable cast iron, and gray cast iron, as well as their dissimilar welding to stainless steel, carbon steel, low alloy steel, and various nickel alloys
ERNiCrMo-4 Used for welding nickel-chromium-molybdenum alloys, or for welding nickel-chromium-molybdenum alloys to steel and other nickel-based alloys
ERNiCrMo-11 uitable for self-welding nickel-chromium-molybdenum alloys, dissimilar welding with steel and other nickel alloys, and also for cladding applications
ERNiCrMo-13 Used for welding low-carbon nickel-chromium-molybdenum alloys
ENiCrMo-3 Designed for welding nickel-chromium-molybdenum alloys, including 625, 800, 801, 825, and 600
ENiCrFe-3 Used for welding nickel-chromium-iron alloys and for dissimilar welding with carbon steel
ENiCrFe-2 Suitable for welding austenitic steel, ferritic steel, and high-nickel alloys, also used for 9% nickel alloy welding
ENiCu-7 Primarily used for welding nickel-copper alloys and their dissimilar welding with steel
ENiCrFe-7 Ideal for welding 690 (UNS N06690) nickel-chromium-iron alloys
ENiCrMo-4 Designed for C-276 alloy welding and most nickel-based alloys
ENiCrCoMo-1 Suitable for welding nickel-chromium-cobalt-molybdenum alloys and various high-temperature alloys
ERCuNi Used for welding forged or cast 70/30, 80/20, and 90/10 copper-nickel alloys
ENiCrMo-13 Used for welding low-carbon nickel-chromium-molybdenum alloys
ENiCrMo-11 Used for welding low-carbon nickel-chromium-molybdenum alloys
Physical & Mechanical Properties
Welding Wire Type Density (g/cm³) Melting Point (°C) Electrical Conductivity (% IACS) Coefficient of Thermal Expansion (10⁻⁶/°C) Tensile Strength (MPa) Yield Strength (MPa) Elongation at Break (%)
Carbon Steel Welding Wire 7.85 1450 8-10 11.8 400-550 300-400 20-25
Stainless Steel Welding Wire 7.9 1350-1450 2-5 16-17 550-650 300-400 30-40
Aluminum Welding Wire 2.7 600-660 >60 23.1 150-200 75-100 >20
Nickel Alloy Welding Wire 8.4 1350-1400 1-2 13.1 600-800 400-600 30-40
Welding Rod Type Coating Electrical Resistivity (10⁻⁶ Ω·cm) Hardness (HV) Heat Resistance (°C) Tensile Strength (MPa) Yield Strength (MPa) Elongation at Break (%)
Carbon Steel Welding Rod Acid coated, alkaline coated 10-15 150-200 < 450 400-550 300-400 20-25
Stainless Steel Welding Rod Acid coated, alkaline coated 60-80 200-400 < 800 550-750 350-450 25-35
Cast Iron Welding Rod Alkaline coated 90-120 250-450 300-600 300-500 150-300 10-20
Nickel Alloy Welding Rod Alkaline coated 80-100 200-300 < 1200 700-900 450-650 20-35

For more other size details, pls directly contact us

Our ERNiCu-7 Monel 400 welding wire is a versatile performer, built for marine and related industries where corrosion resistance is critical. Here’s where it excels:

  • Marine Applications: Used for welding ship hulls, propeller shafts, and seawater piping systems, resisting corrosion from saltwater and brine.

  • Offshore Oil and Gas: Ideal for platforms, pipelines, and subsea equipment exposed to chloride-rich environments and harsh weather.

  • Desalination Plants: Supports welding of heat exchangers and evaporators, ensuring durability in seawater processing systems.

  • Chemical Processing: Applied in equipment handling acidic and alkaline solutions, like sulfuric and hydrofluoric acids.

  • Power Generation: Used in coastal power plants for components exposed to seawater cooling systems.

  • Petrochemical Industry: Perfect for refineries and chemical plants dealing with corrosive gases and liquids.

  • Heat Exchangers: Ensures reliable welds in heat transfer equipment for marine and industrial applications.

  • Overlay Welding: Suitable for cladding carbon or stainless steels to enhance corrosion resistance in harsh environments.

Its ability to weld dissimilar metals, like Monel 400 to stainless or carbon steels, makes it a flexible choice for complex projects. From ship repairs to offshore platform fabrication, our ERNiCu-7 wire delivers consistent, high-quality welds.

Parameter

Our ERNiCu-7 Monel 400

Competitor’s Product

Corrosion Resistance

Exceptional resistance to seawater, acids, and chlorides

Good resistance, but less effective in mixed corrosive environments

Weldability

Smooth feeding, minimal defects, excellent arc stability

Decent weldability, occasional slag or spatter issues

Chemical Composition

High copper, low carbon for reduced cracking

Higher carbon, increasing risk of sensitization

Versatility

Suitable for GTAW, GMAW, and dissimilar metal welding

Limited to specific welding processes

Pitting Resistance (PREN)

High PREN (~30) for superior pitting resistance

Moderate PREN (~25)

Temperature Performance

Reliable up to 1000°F (538°C) in corrosive environments

Limited to lower temperatures in corrosive settings

Purity and Cleanliness

High-purity wire with minimal impurities

Standard purity, some weld imperfections

Certifications

Fully compliant with AWS A5.14, ASTM standards

Meets AWS A5.14, limited ASTM compliance

Our wire’s high copper content and optimized composition ensure top-tier corrosion resistance, especially in marine environments. Its high purity and smooth weldability reduce defects, saving time and costs during production. The ability to handle multiple welding processes and dissimilar metals gives it an edge for diverse marine applications.

Our ERNiCu-7 Monel 400 welding wire is the result of years of expertise and cutting-edge manufacturing. We’ve perfected our process to deliver a wire with consistent chemistry and mechanical properties, ensuring reliable welds every time. Its high purity minimizes imperfections, giving you cleaner, stronger joints that perform in the toughest marine environments, from ship hulls to offshore pipelines.

Versatility is a major strength. Our wire excels in both TIG and MIG welding and handles dissimilar metal joints with ease, making it ideal for complex marine projects. Its smooth feeding and excellent arc stability boost productivity, reducing downtime and rework on the shop floor.

We back our product with unmatched customer support. From detailed welding parameters to on-call technical expertise, we help you optimize your processes for the best results. Our global supply chain ensures fast, reliable delivery, so you’re never waiting for materials. Sustainability is a priority—our wire’s durability extends equipment lifespans, reducing maintenance costs and environmental impact. Whether you’re welding a ship’s propeller shaft or a desalination plant component, our ERNiCu-7 delivers the performance you need.

ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine ApplicationsERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine ApplicationsERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

About Us:

Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. We also provide chemical analysis reports for every FeCrAl alloy, NiCr alloy, and other products purchased.

For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

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ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

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ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

ERNiCu-7 Monel 400 Welding Wire for Corrosion-Resistant Marine Applications

FAQs

  1. What is ERNiCu-7 Monel 400 welding wire used for?
    It’s used for welding nickel-copper alloys in marine, offshore, and chemical processing applications, offering superior corrosion resistance.

  2. What makes ERNiCu-7 stand out?
    Its high copper and low carbon content ensure excellent corrosion resistance and weldability in seawater and acidic environments.

  3. Can it weld dissimilar metals?
    Yes, it’s ideal for joining Monel 400 to stainless steel, carbon steel, or other nickel-based alloys.

  4. Which industries benefit from ERNiCu-7?
    Marine, offshore oil and gas, desalination, chemical processing, and power generation rely on its durability.

  5. What welding processes is it compatible with?
    It’s optimized for GTAW and GMAW, but also supports other arc welding processes.

  6. How does it perform in corrosive environments?
    It offers excellent resistance to pitting, crevice, and stress corrosion in seawater and acidic conditions.

  7. Is it suitable for high-temperature applications?
    Yes, it performs reliably up to 1000°F (538°C) in corrosive environments.

  8. Does it require special welding techniques?
    No, but using our recommended parameters ensures optimal weld quality and minimal defects.

Why Choose Our ERNiCu-7 Monel 400 Wire?

Our ERNiCu-7 Monel 400 welding wire is built for the toughest marine challenges. Its exceptional corrosion resistance, reliable weldability, and versatility make it a top choice for shipbuilding, offshore platforms, and desalination plants. With clean, strong welds and unmatched durability, it helps you reduce maintenance costs and keep operations running smoothly. Backed by our commitment to quality, innovation, and customer support, our wire delivers the performance you need for high-stakes marine projects. Trust us to provide the welding solution that powers your success in corrosive environments.

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