Inconel 718 Bolts

Inconel 718 bolts are typically weldable without prior heat treatment. Before welding, clean the bolt and the base metal to remove any contaminants. Use a TIG welder and initialize a gas lens with an argon-helium mixture for shielding purposes. Adjust your welding torch settings according to the material’s thickness, then apply three passes of varying heat speeds from low to high. Reverse your polarity setting as needed during each pass to achieve maximum penetration into each part. Finally, inspect your weld after cooling and make sure it meets applicable codes before use.

No, Inconel 718 bolts are not magnetic. This is because this alloy contains a significant amount of nickel and iron, which decreases its susceptibility to magnetic fields. Additionally, it also has an austenitic microstructure and very low levels of carbon content. The combination of these characteristics renders it non-magnetic and also highly resistant to corrosion due to its special metallurgical structure.

Yes, Inconel 718 bolts are highly corrosion-resistant. They have superior resistance to a wide range of corrosive media, including organic and inorganic acids, salt solutions, and brackish waters at extreme temperatures. Their molybdenum-nickel alloy composition provides an exceptionally high level of resistivity to both oxidizing and reducing acids such as nitric acid, acetic acid, and sulfuric acid.