Weld Cladding / Metal Overlay
Cladding is defined by the Welding Institute as ‘providing a corrosion or oxidation resistant surface on a less corrosion resistant material. For example; the deposition of a stainless steel or nickel-based layer on a carbon steel base. One advantage of this technique is cost saving arising when surfacing a relatively inexpensive metal, such as a carbon steel, with a more expensive but corrosion resistant layer of stainless steel. Material and weight savings may be gained when a clad, high strength, quenched and tempered steel is used in a corrosive environment. Weld cladding engineering of alloy steel with corrosion resistant alloys is a process widely used throughout the oil & gas industry. This weld cladding process provides a cost effective surface treatment for components used in highly aggressive services where highly corrosive/erosive or extreme “wear” mechanisms prevail. CTL has a partnership with MB Aerospace & ARC Energy to provide a specialised “turnkey” overlay cladding and machining service to a wide variety of clients A wide range of qualified procedures are currently in place, for the overlay cladding of low alloy/carbon steels with Stainless Steel, Inconel, Monel, Stellite, Hastelloy. In addition, procedures are available for other specialised applications such as overlay and fabrication of more exotic base materials such as 25%Cr duplex.
