NS3309

NS3309(NS339) belongs to the national standard corrosion resistant alloy, the implementation standard: GB/T 15007-2017 NS3309(NS339) is an improved alloy with improved iron reduction, this alloy is resistant to reducing media and oxidizing media, coupled with low carbon, low silicon, low iron so that the alloy has high tissue thermal stability, reduce or harmful phase precipitation, so that the alloy has good resistance to sensitization, greatly improving the alloy's resistance to intergranular corrosion performance. Corrosion resistance: alloy resistance to uniform corrosion performance than all NI-CR-MO alloy, good intergranular resistance, the alloy has good resistance to pitting and crevice corrosion performance, and performance than all NI-CR-MO alloy

Processing and welding: alloy hot working deformation resistance, processing temperature can be referred to C276 suitable temperature in 1150 ~ 1200. cold working forming and cold working strengthening, due to the alloy's higher level of strength, easy to process hardening and other characteristics, the need to apply a large deformation force, after cold working, the alloy my strength rise, plasticity decreased. Welding can be done by conventional methods. Application areas: the alloy is mainly used in chemical processing, pulp production and paper industry, marine environment, for other materials can not be competent equipment, components, especially in seawater corrosion resistance in the use of fasteners has been satisfactory results.