Techalloy 418 description: Techalloy 418 is used for TIG, MIG and SAW welding of copper alloys (ASTM B127, B163, B164 and B165 UNS Number N04400). This filler metal can be used for MIG overlay on steel after a first layer with nickel 208. Dissimilar welding
applications include joining alloys to Nickel 200 and copper-nickel alloys. This product is widely used in marine applications
because of its good resistance to the corrosive effects of seawater and brackish waters.