New flux-core wire

Techalloy (a division of Arcelor) has introduced its Techalloy 625 FCA, which aims to combine the ease of use of a flux-core wire with nickel alloy applications. Techalloy 625 FCA is used for the welding of nickel-chrome-molybdenum alloys, as well as for welding dissimilar joints between nickel-chrome-molybdenum alloys and stainless, low carbon, or low alloy steels. Its low iron content makes it ideal when the dilution of iron needs to be minimised. Slag from the encoated flux forms quickly, holding the welding material firmly in vertical and overhead joints. According to Stan Merrick, Techalloy’s Director of Marketing, Techalloy 625 FCA wire withstands highly corrosive conditions. Its combination of nickel and chromium provides resistance to oxidising conditions, while the combination of nickel and molybdenum contributes excellent resistance to reducing conditions as well as to stress-corrosion cracking, pitting and crevice corrosion. The bead appearance is smooth and cosmetically appealing, and the slag is easily removed from the finished weld.

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