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718

The electrode is highly resistant to stress cracking corrosion even under high temperatures. The filler metal works well even at cryogenic temperatures. The electrode is suitable for adverse conditions that contain hydrogen sulfide, sulfides, carbon dioxide, and free sulfur. The material requires hardening in temperatures of around 9000 C. The alloy has excellent weldability, and it is easily fabricated. The electrode is used in welding grades 718, 750, and X-750 stainless steel. The rod has high strength retention at high and cryogenic temperatures. The alloy has easy slag removability and forms a smooth bead with the base metal.

 

Properties of Inconel 718 electrodes

 

Mechanical- The alloy has a tensile strength of around 600MPa while the yield strength is 400MPa. It has an elongation capacity of 30% in 50mm.

 

Chemical- The elements found in the Inconel 718 electrodes include carbon, chromium, copper, silicon, manganese, sulfur, molybdenum, nickel, iron, aluminum, titanium, and boron. Aluminum increases the weldability while high chromium and nickel content are ideal for reducing corrosion.

 

Application

  • Cryogenic storage containers.
  • Downhole shafts.
  • Wellhead parts.
  • Gas turbine engine parts.
  • Springs and fasteners.

 

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