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ERNiFeCr-2 (UNS N07718) / Nickel Alloy 718 Filler Metal /Inconel 718 welding wire / AWS A5.14 / Inconel 718 Tig Rod



ERNiFeCr-2 is used for gas-tungsten-arc welding of alloys 718, 706 and X-750. The weld metal is age hardenable and has mechanical properties comparable to those of the base metals. The filler metal can be used with both the gas metal arc and gas tungsten arc processes.

Product Detail

Inconel 718 TIG Rods stand as a pinnacle in the realm of welding materials, designed to meet the demanding needs of industries requiring superior performance under extreme temperatures and corrosive conditions. This advanced alloy, specifically crafted for TIG welding processes, boasts exceptional properties that make it an indispensable choice across various high-stress applications.

Composition and Properties

Inconel 718 is a nickel-based superalloy primarily comprised of nickel, chromium, iron, and niobium, along with traces of other elements like molybdenum, titanium, and aluminum. This alloy is renowned for its outstanding mechanical strength, corrosion resistance, and high-temperature stability, making it ideal for critical applications in extreme environments.

High-Temperature Stability

One of the most notable characteristics of Inconel 718 TIG rods is their exceptional stability and performance at elevated temperatures. This property makes them invaluable in industries such as aerospace, where components must endure extreme heat without compromising structural integrity.

Corrosion Resistance

Inconel 718 is highly resistant to corrosion and oxidation, even in harsh environments exposed to acids, gases, and seawater. This exceptional corrosion resistance makes it an ideal choice for components subjected to aggressive chemical environments or marine applications.

Mechanical Strength

The TIG Rods made of Inconel 718 exhibit outstanding mechanical strength, providing excellent fatigue resistance and durability. These properties are crucial in applications requiring high strength-to-weight ratios, such as turbine engines, where components must endure extreme stress and strain.


Inconel 718 TIG Rods find extensive use across several industries due to their exceptional properties:

  1. Aerospace: Inconel 718 is a staple in the aerospace industry, used for fabricating critical components in aircraft engines, turbine discs, rocket motors, and other high-temperature applications where strength and heat resistance are vital.

  2. Oil and Gas: These rods are utilized in the oil and gas industry for parts in downhole equipment, valves, and wellhead components that must endure harsh and corrosive conditions encountered in drilling operations.

  3. Power Generation: Inconel 718 rods are employed in power generation applications, particularly in gas turbine components and nuclear reactors, where their high-temperature resistance and corrosion resilience are essential.

  4. Medical and Chemical Industries: The alloy is also used in medical equipment and chemical processing, where resistance to corrosion and high temperatures is crucial for performance and safety.

Advantages of Inconel 718 TIG Rods

  • Reliability: Inconel 718 rods offer unmatched reliability and performance in extreme conditions, ensuring the longevity and stability of welded components.

  • Versatility: Their versatility allows for use in a wide array of industries and applications, meeting stringent requirements across diverse sectors.

  • Quality Welds: Inconel 718 TIG welding rods facilitate high-quality, clean welds, minimizing defects and ensuring the integrity of welded joints.

Inconel 718 TIG Rods epitomize excellence in the welding realm, offering unparalleled performance, durability, and resilience in environments that demand the utmost in high-temperature stability and corrosion resistance. Their superior properties and versatility make them a pivotal material in critical industries where reliability and endurance are paramount.

Please note that the information provided here is based on the general characteristics and potential applications of Inconel 718 alloy in TIG welding, as of my last knowledge update in January 2022. Specific technical specifications and applications may vary based on manufacturing processes, industry standards, and advancements beyond that time.



Welding is the silent art that binds together the modern world. It’s the invisible thread that holds up the structures, pipelines, and components that keep industries running. Amid the world of welding materials, ErNiFeCr-2 emerges as a testament to human ingenuity in materials science and engineering. This article embarks on a comprehensive exploration of ErNiFeCr-2, a nickel-based welding alloy that has earned its place in the spotlight. We’ll uncover the secrets of its chemical composition, the intricacies of its microstructure, its robust mechanical properties, and the myriad applications that rely on its exceptional attributes.

Composition and Microstructure: The Blueprint of Excellence

Understanding the essence of ErNiFeCr-2 begins with a deep dive into its elemental composition and microstructural complexities. This alloy predominantly comprises nickel (Ni) as its foundation, enriched with precise proportions of iron (Fe), chromium (Cr), and other essential elements. The artful blend of these components gives rise to an alloy with remarkable properties.

The Marvel of Microstructure: The microstructure of ErNiFeCr-2 is a captivating realm of interlocking grains, finely dispersed precipitates, and intermetallic phases. These structural intricacies are meticulously crafted through controlled heat treatments, shaping the alloy’s unique characteristics. The microstructure serves as the cornerstone upon which ErNiFeCr-2’s exceptional performance is built.

Mechanical Prowess: Defying Extreme Conditions

ErNiFeCr-2’s mechanical prowess is at the heart of its appeal in welding applications, particularly in environments where materials face extreme temperatures and corrosive substances.

Tensile Strength: The Unyielding Backbone

ErNiFeCr-2 boasts impressive tensile strength, both at room temperature and elevated temperatures. This quality ensures the steadfastness of welded joints even when subjected to the rigors of extreme conditions.

Creep Resistance: Defying Time and Temperature

In high-temperature applications, materials often succumb to creep deformation over time. ErNiFeCr-2, however, stands resolute with exceptional resistance to creep, making it a preferred choice for components in industries such as petrochemical and power generation.

Corrosion Resistance: Battling the Elements

Corrosion can be an unrelenting foe in various industrial settings. ErNiFeCr-2’s outstanding corrosion resistance is a testament to its longevity and reliability, even in highly corrosive conditions. This attribute is paramount in marine and chemical processing applications.

C Si Mn Cr P Ni Ti Co Al Mo Fe Cu S B Nb+Ta
≤0.08 ≤0.35 ≤0.35 17.0-21.0 ≤0.015 50.0-55.0 0.65-1.15 ≤1.0 0.20-0.80 2.80-3.30 Rem ≤0.30 <0.015 ≤0.006 4.75-5.50
Tensile Strength Mpa(Psi) Elongation Density g/cm3 Melting Point ℃ Electrical Resistivity μΩ-m
1138(165,000 ) 25-30% 8.19 g/cm3 1260-1335℃ 1.3
Process Diameter Voltage Amperage Amperage Gas
GTAW 0.90mm 12-15 60-90 30-40 CFH 100% Argon
GTAW 1.20mm 13-16 80-110 30-40 CFH 100% Argon
GTAW 1.60mm 14-18 90-130 30-40 CFH 100% Argon
GTAW 2.40mm 15-20 120-175 30-40 CFH 100% Argon
GTAW 3.20mm 15-20 150-220 30-40 CFH 100% Argon
GMAW 0.90mm 26-29 150-190 30-50 CFH 75% Argon + 25% Helium
GMAW 1.20mm 28-32 180-220 30-50 CFH 75% Argon + 25% Helium
GMAW 1.60mm 29-33 200-250 30-50 CFH 75% Argon + 25% Helium
SAW 2.40mm 29-32 300-350 30-50 CFH Suitable Flux may be used
ERNiFeCr-2 (UNS N07718) / Nickel Alloy 718 Filler Metal /Inconel 718 welding wire / AWS A5.14 / Inconel 718 Tig Rod

Welding Wire

ERNiFeCr-2 (UNS N07718) / Nickel Alloy 718 Filler Metal /Inconel 718 welding wire / AWS A5.14 / Inconel 718 Tig Rod

Welding Rod

Form Diameter Length, Packaging
MIG Spools 0.8mm /1.0mm /1.2mm /1.6mm - 33 lbs (15kgs)
TIG Cut Lengths 2.0mm /2.4mm /2.5mm /3.2mm /4.0mm /5.0mm 915mm- 1000mm 11 lbs (5kgs)
Reels And Coils 2.0mm /2.4mm /2.5mm /3.2mm /4.0mm /5.0mm - 60 lbs (27kgs)

Introducing our high-quality Inconel 718 Welding Wire, the ultimate solution for your welding needs. Crafted with precision and designed for excellence, this welding wire offers unmatched performance and reliability in the most demanding applications.

Made from premium-grade Inconel 718 alloy, this welding wire exhibits exceptional strength, corrosion resistance, and high-temperature capabilities. Its composition ensures superior weldability and the ability to withstand extreme conditions, making it ideal for aerospace, automotive, oil and gas, and other critical industries.

Our Inconel 718 Welding Wire is meticulously manufactured using advanced techniques, resulting in a consistent and uniform wire with exceptional mechanical properties. It is carefully engineered to provide excellent arc stability, smooth flow, and controlled deposition, ensuring precise and efficient welding operations.

With its excellent resistance to oxidation, pitting, and crevice corrosion, this welding wire is built to endure harsh environments and aggressive chemical surroundings. Its exceptional mechanical properties, including high tensile and fatigue strength, guarantee the durability and longevity of your welded joints.

The Inconel 718 Welding Wire comes in various diameters to cater to different welding requirements, providing versatility and flexibility for diverse applications. Its spool packaging ensures ease of use, handling, and storage, minimizing downtime and maximizing productivity.

Whether you’re working on aerospace components, gas turbine engines, pressure vessels, or any other challenging project, our Inconel 718 Welding Wire is your reliable partner for achieving exceptional weld quality and performance. Trust in its superior characteristics, consistent results, and impeccable craftsmanship to deliver outstanding welding results time and time again.

Choose our Inconel 718 Welding Wire and experience the pinnacle of welding excellence. Unleash your potential and achieve remarkable results with this cutting-edge solution for all your welding needs.


Key applications and industries where this welding electrode finds extensive use:

Aerospace and Aviation Industry:
ErNiFeCr-2 filler metal is commonly employed in the aerospace and aviation sectors for joining nickel-chromium-iron alloys used in critical components of aircraft engines, gas turbine parts, combustion chambers, and exhaust systems. These alloys offer exceptional high-temperature strength and resistance to corrosion, making them ideal for operating in the demanding conditions encountered in aviation applications.

Petrochemical and Chemical Processing:
In the petrochemical and chemical processing industries, ErNiFeCr-2 filler metal plays a crucial role in fabricating components that are exposed to aggressive chemical environments and elevated temperatures. Nickel-chromium-iron alloys, joined using ErNiFeCr-2, are used in reactors, heat exchangers, distillation columns, and other equipment where corrosion resistance and mechanical integrity are paramount.

Nuclear Engineering:
ErNiFeCr-2 filler metal is also extensively used in nuclear engineering due to its compatibility with nickel-chromium-iron alloys used in nuclear reactor components. These alloys exhibit excellent resistance to corrosion and maintain their mechanical properties even under the harsh conditions found in nuclear power plants.

High-Temperature Applications:
ErNiFeCr-2 filler metal is well-suited for high-temperature applications in various industries, including power generation, heat treatment, and metal refining. The welds produced with this filler metal can withstand prolonged exposure to elevated temperatures without significant loss of mechanical strength or corrosion resistance.

Marine and Offshore Applications:
In marine and offshore environments where exposure to seawater and aggressive marine atmospheres is prevalent, ErNiFeCr-2 filler metal is utilized to join nickel-chromium-iron alloys for components such as seawater piping, marine shafts, and offshore drilling equipment.

Specialty Alloys Fabrication:
ErNiFeCr-2 filler metal is suitable for welding specialty nickel-chromium-iron alloys that require precise control over composition and mechanical properties. These alloys are often tailored for specific applications in industries like electronics, aerospace, and chemical processing.


ErNiFeCr-2 filler metal plays a significant role in welding nickel-chromium-iron alloys, enabling the construction of components with exceptional strength, corrosion resistance, and high-temperature capabilities. Its use contributes to the successful operation of critical components in industries that demand reliability and performance under challenging conditions. Welders must adhere to proper welding procedures, exercise skill, and ensure thorough material knowledge to achieve high-quality welds that meet the stringent requirements of the industries where these materials are employed. With its unique properties and applications, ErNiFeCr-2 filler metal continues to be a valuable resource for the welding community, driving innovation and progress in various technological fields.