DAIKOWT 718

The subfamily 718 is specifically designed for welding the base metal alloy 718, ensuring exceptional corrosion resistance under various environmental conditions. The weld metal can be subjected to age-hardening treatment, thus granting it considerable mechanical properties that are closely influenced by post weld heat treatment (PWHT). It is commonly employed in tungsten arc welding processes of Cr-Ni-NB-Mo alloys, as the use of high heat input processes like GMAW can often cause microfissures. This alloy finds its main application in welding high-strength aerospace components, liquid fuel rocket parts, rings, casings, and various formed sheet elements for gas turbine engines used in land-based vehicles and aircraft, as well as in cryogenic tanks. It is also utilized for fasteners, instrumentation components, and for cladding and overlay of parts in the oil and gas industry. The temperature range of use spans from -250 °C to 700 °C.