ESAB has introduced Exaton 19.9.Nb HF, classified as an AWS A5.9: ER347 as well as an EN ISO 14343-A: S 19 9 Nb. This 300 series austenitic steel SAW wire is made with niobium and high ferrite to help prevent weld cracking. It is suitable for stainless steel applications on pressure vessels and other thick-plate applications requiring multiple passes.
The wire has a FN DeLong of 13%, a FN as per WRC-92 of 12, and a nominal niobium composition of 0.7%. It is available in 2.4- and 3.2-mm dia., in 25-kg spools and 280-kg drums. Its recommended flux is Exaton 15W, although it can be used in combination with other fluxes.
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