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Professional manufacturer of welding wires and spraying wires,over 20 years.

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Copper Welding Wire

High-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial Applications
High-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial Applications

High-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial Applications

Product Details

Our High-Strength CuNi5Fe1 MIG Filler Rod is built for industries that need tough, reliable welds in demanding conditions. This copper-nickel alloy, with roughly 5% nickel and 1% iron, is designed for MIG welding, offering a tensile strength of about 760 MPa and a yield strength of 345 MPa. It’s perfect for joining 90/10 copper-nickel alloys or overlaying steel, delivering welds that resist corrosion, erosion, and cavitation. Compliant with AWS A5.7 standards, this filler rod shines in applications like industrial piping, marine equipment, and chemical processing systems. Its smooth arc stability and low spatter make welding a breeze, saving time on cleanup and ensuring high-quality results every time.

Available in diameters like 0.035”, 0.045”, and 1/16”, our CuNi5Fe1 rod is versatile enough to handle a range of project sizes. The alloy’s excellent thermal conductivity and resistance to harsh environments, like seawater or acidic chemicals, make it a top choice for heavy-duty industrial use. Whether you’re working on a power plant’s cooling system or a ship’s hull, this filler rod delivers durability and performance you can count on.

For more other size details, pls directly contact us

The copper-nickel alloy market is on a steady upward trajectory, fueled by the need for durable materials in industries like marine, power generation, and chemical processing. Global infrastructure projects, especially in coastal and industrial regions, are driving demand for high-strength, corrosion-resistant welding materials like our CuNi5Fe1 MIG filler rod. The industrial sector is seeing a surge in applications for copper-nickel alloys, particularly in energy and water treatment systems, where materials must withstand aggressive environments without degrading. Market trends indicate a growing focus on sustainable materials, with copper’s recyclability making it a favorite for eco-conscious industries.

Shipbuilding remains a key growth area, as naval and commercial vessels require welds that can endure constant seawater exposure. The rise of desalination plants to combat water scarcity is another major driver, with CuNi5Fe1 being a go-to material for constructing reliable piping systems. In the chemical industry, the need for equipment that resists acidic and chloride-rich environments is pushing demand for high-performance alloys. Emerging technologies, like additive manufacturing with copper-nickel powders, are starting to gain traction, but traditional MIG welding remains the backbone of heavy industrial applications. As industries prioritize efficiency and longevity, our CuNi5Fe1 filler rod is well-positioned to meet these evolving needs.

Applications

Our CuNi5Fe1 MIG filler rod is a powerhouse in industrial applications. In marine settings, it’s used to weld 90/10 copper-nickel alloys for ship components like hulls, piping, and propeller shafts. Its resistance to seawater corrosion and biofouling makes it a top pick for seawater cooling systems in ships and coastal power plants. Desalination facilities rely on this rod for constructing durable heat exchangers and pipelines that handle salty, corrosive conditions without breaking down over time.

In the petrochemical sector, our filler rod is essential for fabricating equipment like reactors, pipelines, and storage tanks that face harsh chemical environments. Its high tensile strength and resistance to stress corrosion cracking ensure welds that last, reducing maintenance costs and downtime. Power generation systems, including HVAC and refrigeration units, benefit from CuNi5Fe1’s excellent thermal conductivity, making it ideal for heat exchanger fabrication. The rod also performs well in welding dissimilar metals, such as copper-nickel to steel or nickel alloys, delivering strong, defect-free joints for complex industrial projects.

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

We’ve been in the game for over a decade, and our CuNi5Fe1 MIG filler rod reflects our commitment to quality and innovation. Every rod is manufactured with precision, meeting AWS A5.7 standards and undergoing rigorous testing in our advanced labs to ensure consistent performance. Our filler rod offers superior arc stability and minimal spatter, which means cleaner welds and less time spent on rework. We know industrial projects demand reliability, and our product delivers welds that hold up under mechanical stress and corrosive conditions.

What sets us apart is our flexibility. We offer a range of diameters and full OEM/ODM support, so you get a product tailored to your specific needs. Our technical team is always ready to provide expert advice, helping you choose the right rod for your project. Sustainability is a big focus for us—we use recyclable materials and eco-friendly production methods to align with modern industry standards. With a robust global supply chain, we ensure fast, reliable delivery, whether you’re working on a local job or an international project. Our dedication to quality, customization, and customer support makes us the top choice for copper-nickel welding solutions.

Comparison Parameters Table

Parameter

CuNi5Fe1

Standard ERCuNi

Composition

Cu (Balance), 5% Ni, 1% Fe, 0.2-0.5% Ti

Cu (Balance), 29-32% Ni, 0.4-0.75% Fe

Tensile Strength

760 MPa

540 MPa

Yield Strength

345 MPa

215 MPa

Corrosion Resistance

Excellent (Seawater, Acidic Environments)

High (Seawater, General Corrosion)

Thermal Conductivity

High, ideal for heat exchangers

Moderate, less efficient in heat transfer

Welding Processes

MIG, TIG, Oxy-Fuel

MIG, TIG, Oxy-Fuel

Applications

Industrial piping, marine, petrochemical

Marine, general industrial

Diameter Options

0.035”, 0.045”, 1/16”

0.035”, 0.045”, 1/16”

Customizability

Full OEM/ODM support

Limited customization

Our CuNi5Fe1 MIG filler rod is a cut above the rest, offering high strength, corrosion resistance, and versatility for industrial applications. Its ability to withstand seawater, acidic environments, and high temperatures makes it a must-have for projects where durability is non-negotiable. Whether you’re welding pipelines, heat exchangers, or marine components, this rod delivers reliable, high-quality welds with minimal hassle. Our focus on precision manufacturing and customizable options ensures you get exactly what you need, backed by a company with years of expertise.

The industrial landscape is evolving, with growing demand for materials that can handle tough conditions while supporting sustainable practices. Our CuNi5Fe1 filler rod meets these demands, offering exceptional performance in marine, petrochemical, and power generation applications. With global infrastructure projects on the rise, this rod is your go-to solution for welds that last. Trust us to provide the materials and support you need to keep your projects running smoothly and efficiently.

High-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial ApplicationsHigh-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial 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.

High-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial Applications

Client Visits

Building Stronger Partnerships

High-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial Applications

We support all kinds of testing:

High-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial Applications

High-Strength CuNi5Fe1 MIG Filler Rod - AWS Compliant for Industrial Applications

FAQs:

  1. What is CuNi5Fe1 MIG filler rod used for?
    It’s used for welding 90/10 copper-nickel alloys in industrial applications like piping, heat exchangers, and marine equipment due to its high strength and corrosion resistance.

  2. What are the main properties of CuNi5Fe1?
    It boasts a tensile strength of 760 MPa, yield strength of 345 MPa, excellent corrosion resistance, and high thermal conductivity for industrial environments.

  3. Can CuNi5Fe1 be used for welding dissimilar metals?
    Yes, it’s great for joining copper-nickel alloys to steel or nickel alloys, with a nickel alloy 610 barrier layer recommended for steel overlay in MIG welding.

  4. What welding process is CuNi5Fe1 designed for?
    It’s optimized for MIG welding but can also be used in TIG and oxy-fuel processes with proper setup.

  5. What diameter options are available for CuNi5Fe1 filler rods?
    Standard sizes include 0.035”, 0.045”, and 1/16”, with custom diameters available for specific project needs.

  6. Is CuNi5Fe1 suitable for corrosive environments?
    Absolutely, it’s highly resistant to seawater, chloride, and acidic corrosion, making it ideal for industrial and marine settings.

  7. How does CuNi5Fe1 perform in high-stress applications?
    Its high tensile and yield strength ensure reliable welds that withstand mechanical stress and harsh conditions.

  8. Can CuNi5Fe1 be customized for specific projects?
    Yes, we offer OEM and ODM services to tailor the rod’s specifications to your project requirements.

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