Nihonweld NT-317/NT-317L description: NT-317/317L is used to weld 317/317L stainless steels in which the raised Mo level provides improved resistance to pitting in high chloride environments and to some acids (not nitric acid). These steels are used in marine, chemical process, papermaking, and food processing applications. Also suitable for 316/316L and their stabilised versions when the benefits of higher molybdenum weld metal are required to maximise weld area pitting resistance. Not suitable for structural service above about 400C, or for cryogenic applications.