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ERNiCrCoMo-1 (UNS N06617) / inconel 617 welding wire / AWS A5.14



Alloy 617 is a nickel chromium cobalt molybdenum filer metal designed primarily for MIG and TIG welding of Inconel 617 base material. Excellent for high temperature applications involving dissimilar metals such as joining Inconel 600, 601 and Incoloy 800 HT. Alloy 617 weld deposits have excellent mechanical stability, oxidation and corrosion resistance as well as good stress rupture properties at temperatures up to 2000°F

Product Detail

ERNiCrComo-1 is a high-performance welding alloy that has gained significant recognition in various industries for its exceptional mechanical and corrosion-resistant properties. This alloy is widely used in critical applications where weld integrity and performance are of utmost importance.

Understanding ERNiCrComo-1

ERNiCrComo-1 is a nickel-based alloy with a combination of essential elements such as nickel (Ni), chromium (Cr), cobalt (Co), and molybdenum (Mo). The addition of these elements imparts exceptional strength, excellent resistance to extreme temperatures, and remarkable corrosion resistance. Moreover, the unique composition of ERNiCrComo-1 provides it with outstanding weldability, making it an ideal choice for various welding processes.

Mechanical Properties

The mechanical properties of ERNiCrComo-1 are a testament to its superior quality. With a tensile strength ranging from 75,000 to 100,000 psi (517-689 MPa), this alloy exhibits robustness and durability, even in harsh operating conditions. Its elongation at break is typically between 25% to 35%, showcasing its ability to withstand stress without sacrificing flexibility.

Corrosion Resistance

One of the primary reasons for the popularity of ERNiCrComo-1 in critical applications is its remarkable resistance to corrosion. This alloy effectively withstands a wide range of corrosive environments, including acidic and alkaline solutions, seawater, and high-temperature gases. As a result, it is widely used in industries such as marine, petrochemical, and aerospace, where exposure to corrosive elements is inevitable.


ERNiCrComo-1 finds extensive application across various industries, playing a crucial role in ensuring the integrity and safety of welded components. Some prominent applications include:
  • a. Aerospace Industry: ERNiCrComo-1 is employed in the manufacturing of aircraft engine components, gas turbine blades, and other critical parts where high-temperature resistance and corrosion protection are essential.
  • b. Petrochemical Industry: This alloy is widely used in the construction of pipelines, heat exchangers, and reactors for carrying and processing corrosive materials in petrochemical plants.
  • c. Marine Industry: ERNiCrComo-1 is utilized in marine environments to fabricate components for ships, offshore platforms, and underwater structures, providing long-lasting protection against seawater-induced corrosion.
  • d. Power Generation: In the power generation sector, ERNiCrComo-1 is favored for fabricating boilers, superheaters, and heat exchangers that withstand high temperatures and corrosive conditions.


ERNiCrComo-1 stands out as a versatile and reliable welding alloy, offering exceptional mechanical strength and corrosion resistance across a broad spectrum of industries. Its unique composition and robust properties make it an ideal choice for critical applications where weld integrity and performance are paramount. As technology and engineering continue to advance, ERNiCrComo-1 will undoubtedly maintain its significance as an advanced welding alloy, meeting the stringent demands of modern industrial applications.

  • For welding of nickel-chrome-cobalt-molybdenum alloys to themselves as well as dissimilar metals such as stainless, carbon or low alloy steels.
  •  Also be used for overlay welding where similar chemical composition is desired.
  • The weld metal provides optimum strength and oxidation resistance from 1500°F (815°C) up to 2100°F (1150°C).
C Mn Si Cr S P Ni Fe Cu Al Mo Co Ti
0.05-0.15 ≤1.0 ≤1.0 20-24 ≤0.015 ≤0.03 Rest ≤3.0 ≤0.5 0.8-1.5 8-10 10-15 ≤0.6
Tensile Strength MPa(ksi) Yield Strength MPa(ksi) Elongation %
AWS requirement 620(90) Not specified Not specified
Typical results as welded 770(112) 610(89) 28
Diameter(in) Diameter(mm) Process Volt Amps Shielding Gas
0.035 0.9 GMAW 26-29 150-190 Spray Transfer 100% Argon
0.045 1.2 GMAW 28-32 180-220 Spray Transfer 100% Argon
1/16 1.6 GMAW 29-33 200-250 Spray Transfer 100% Argon
1/16 1.6 GTAW 14-18 90-130 100% Argon
3/32 2.4 GTAW 15-20 120-175 100% Argon
1/8 3.2 GTAW 15-20 150-220 100% Argon
ERNiCrCoMo-1 (UNS N06617) / inconel 617 welding wire / AWS A5.14

Welding Wire

ERNiCrCoMo-1 (UNS N06617) / inconel 617 welding wire / AWS A5.14

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)

ErNiCrCoMo-1 is a specific welding filler metal classified under the American Welding Society (AWS) A5.14 standard. Like other welding filler metals, the designation provides information about the composition of the electrode and its intended use. Let’s break down the code:

  1. “Er” stands for an electrode or filler metal used in Tungsten Inert Gas (TIG) welding or Gas Tungsten Arc Welding (GTAW).

  2. “Ni” represents the presence of nickel in the filler metal.

  3. “Cr” indicates chromium as another key alloying element.

  4. “Co” represents the addition of cobalt in the filler metal.

  5. “Mo” indicates the presence of molybdenum.

The “-1” at the end of the designation suggests that it is the first variant of ErNiCrCoMo welding filler metal in the classification series.

ErNiCrCoMo-1 filler metal is designed for welding nickel-chromium-cobalt-molybdenum alloys, such as Hastelloy C-276 (UNS N10276) and similar materials. These alloys are known for their excellent corrosion resistance in a wide range of aggressive environments, including highly oxidizing and reducing environments. ErNiCrCoMo-1 is commonly used in applications where resistance to corrosion and high-temperature strength are crucial, such as in chemical processing, petrochemical, and marine industries.

Key features and applications of ErNiCrCoMo-1 filler metal include:

  1. Corrosion Resistance: ErNiCrCoMo-1 provides welds with exceptional resistance to corrosion, making it suitable for use in aggressive chemical environments.

  2. High-Temperature Strength: The filler metal can maintain its mechanical properties and structural integrity at elevated temperatures, making it ideal for applications in high-temperature environments.

  3. Welding Dissimilar Materials: ErNiCrCoMo-1 is used for joining different nickel-based alloys or for welding these alloys to other materials.

  4. Gas Tungsten Arc Welding (GTAW): ErNiCrCoMo-1 is typically used in GTAW/TIG welding processes, which provide precise control and produce high-quality welds.

  5. Aerospace and Petrochemical Industries: The filler metal finds extensive use in these industries due to its ability to withstand high-temperature and corrosive conditions.

  6. Offshore and Marine Applications: ErNiCrCoMo-1 is suitable for welding components used in offshore structures and marine environments where resistance to seawater and harsh conditions is essential.

As with any welding process and material, it’s crucial to follow the manufacturer’s guidelines and the specific welding procedures to ensure the quality and performance of the welded joints. Welding operators should also consider the specific requirements of each application and adhere to safety standards to achieve the desired results. Consulting the manufacturer’s recommendations and industry standards is essential to achieve successful welding outcomes and maintain the integrity of the welded components.

Cleaning and maintenance of ErNiCrCoMo-1

ErNiCrCoMo-1 is a high-performance nickel-based alloy commonly used in various industrial applications, including gas turbine components, chemical processing equipment, and aerospace components. Proper cleaning and maintenance are essential to ensure the longevity and performance of this alloy. Here are some guidelines for cleaning and maintaining ErNiCrCoMo-1:

  1. Regular Cleaning: ErNiCrCoMo-1 can be cleaned using mild soap or detergent and warm water. Gently scrub the surface with a soft brush or cloth to remove any dirt, dust, or contaminants. Avoid using abrasive cleaners or harsh chemicals as they can damage the alloy surface.

  2. Avoid Corrosive Environments: ErNiCrCoMo-1 is highly resistant to corrosion in various environments, including acidic and alkaline solutions. However, prolonged exposure to highly corrosive substances can still cause damage. It is important to avoid prolonged contact with strong acids, alkalis, or chlorides. If any spills occur, promptly clean and rinse the alloy surface with water.

  3. Passivation: Passivation is a process used to enhance the corrosion resistance of stainless steel alloys. However, it is not typically required for nickel-based alloys like ErNiCrCoMo-1. Passivation processes usually involve the use of strong acids or other chemicals, which may not be suitable for this alloy. Consult the manufacturer or a materials engineer for specific recommendations regarding passivation.

  4. Heat Treatment: ErNiCrCoMo-1 may require heat treatment under certain circumstances, such as after welding or to relieve residual stresses. Follow the recommended heat treatment procedures provided by the manufacturer or consult with a qualified metallurgist to ensure proper treatment.

  5. Inspection and Maintenance: Regular inspection of ErNiCrCoMo-1 components is crucial to identify any signs of damage, corrosion, or wear. Inspect the surfaces for cracks, pitting, or any other abnormalities. If any issues are detected, consult with a qualified professional for appropriate repair or replacement methods.

  6. Storage: When not in use, ErNiCrCoMo-1 components should be stored in a clean and dry environment to prevent contamination or corrosion. Protect the alloy from exposure to moisture, chemicals, and abrasive materials. Consider using appropriate storage containers or covers to provide additional protection.

Remember, these are general guidelines, and it is always recommended to consult with the manufacturer or a qualified professional who can provide specific instructions based on the application and condition of the ErNiCrCoMo-1 alloy you are working with.