Inconel 718 High Temperture Welding Wire N07718 GH4169 NiCr19Nb5Mo3 2.4668 For

Product Specification

Inconel 718 High Temperture Welding Wire N07718 GH4169 NiCr19Nb5Mo3 2.4668 For Aerospace And Nuclear Industries

Inconel 718 Welding Wire (N07718, GH4169, NiCr19Nb5Mo3, 2.4668) is a nickel-chromium alloy specifically designed for applications requiring high strength, corrosion resistance, and excellent weldability. This alloy is particularly renowned for its ability to maintain mechanical properties at elevated temperatures, making it ideal for use in extreme environments such as aerospace, power generation, and chemical processing industries.

Inconel 718 Welding Wire (N07718, GH4169, NiCr19Nb5Mo3, 2.4668) is a high-performance nickel-chromium alloy known for its strength, corrosion resistance, and excellent weldability. It is ideal for use in extreme environments such as aerospace engines, chemical processing, and power generation systems. With outstanding mechanical properties and resistance to harsh conditions, this alloy ensures reliable and durable performance, even in high-temperature and high-stress applications. Its versatility and dependability make it a preferred material for critical industrial and engineering applications.

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Key Features of Inconel 718 Welding Wire:

• Composition:

Nickel (Ni): 50-55%, providing excellent corrosion resistance and thermal stability.

Chromium (Cr): 17-21%, enhancing oxidation and corrosion resistance.

Niobium (Nb) and Molybdenum (Mo): Improve high-temperature strength and resistance to pitting and crevice corrosion.

Iron (Fe): Balances the alloy for added strength.

Other Elements: Includes small amounts of titanium, aluminum, and cobalt for enhanced mechanical properties.

• Weldability:

Superior Weldability: Excellent resistance to post-weld cracking due to its ability to resist strain-age cracking.

Ease of Fabrication: Compatible with standard welding processes, including TIG, MIG, and laser welding.

• Corrosion Resistance:

High Oxidation Resistance: Performs well in oxidizing and reducing environments, particularly at high temperatures.

Resistant to Chloride Stress Corrosion Cracking: Effective in saline and other chloride-rich environments.

Chemical Resistance: Suitable for use in environments exposed to acids such as sulfuric, nitric, and phosphoric acid.

• High-Temperature Strength:

Retains mechanical strength up to 700°C (1290°F), making it suitable for applications requiring long-term thermal stability.

Resistant to creep and stress rupture, ensuring durability in high-stress environments.

• Mechanical Properties:

High Strength and Toughness: Excellent tensile and yield strength due to the precipitation hardening provided by niobium and molybdenum.

Fatigue Resistance: Performs well under cyclic loading, making it suitable for dynamic applications.

Applications:

• Aerospace: Used in jet engine components, gas turbines, and rocket engines due to its high strength and oxidation resistance.
• Power Generation: Found in turbine blades, exhaust ducts, and high-temperature fasteners.
• Chemical Processing: Suitable for heat exchangers, reactors, and vessels in corrosive environments.
• Marine Applications: Excellent performance in seawater-exposed components, including piping and hardware.

​Advantages of Inconel 718 Welding Wire:

• Exceptional Corrosion Resistance: Performs well in oxidizing, reducing, and high-salinity environments.
• High-Temperature Stability: Retains mechanical properties at elevated temperatures.
• Ease of Welding and Fabrication: Resists post-weld cracking and is compatible with standard welding techniques.
• Durability in Harsh Conditions: Resistant to creep, fatigue, and stress corrosion cracking.
• Versatile Applications: Used in aerospace, marine, and industrial sectors.

Limitations of Inconel 718 Welding Wire:

• Cost: The high nickel and chromium content make it more expensive than other alloys.
• Complex Heat Treatment: Requires precise heat treatment processes to achieve optimal properties.
• Limited Extreme High-Temperature Use: While effective up to 700°C, other alloys may be better for temperatures exceeding this range.