Nihonweld NSS-309L-17 description: NSS-309L-17 is a lime-titania type electrode, which gives extra low carbon25% Cr-12% Ni austenitic weld metal virtually free from spatter. Because of extra low carbon content, the deposited metal has more excellent resistance to the intercrystalline corrosion than that of ordinary 309 type. Peeling-off of the slag is very good.