VANDAN ALLOYS is a recognized manufacturer, exporter, supplier and trader of Hastelloy Washers, which has high nickel and molybdenum contents providing good corrosion resistance in reducing environments. It has excellent corrosion resistance in a wide range of corrosive media including, sulphur compounds and chloride ions, and also has excellent resistance to pitting, crevice corrosion and stress corrosion cracking. Hastelloy Flat Washers can be readily welded by most standard processes including GTAW (TIG), PLASMA, GMAW (MIG/MAG) and SMAW (MMA), where a post weld heat treatment is not necessary. The annealing temperature for Hastelloy products is 1121 Degree C (2050 Degree F), and water quenching is advised (rapid air cooling is feasible with structures thinner than 10 mm (0.375 in). Some typical applications of HASTELLOY include equipment components in chemical and petrochemical organic chloride processes and processes utilizing halide or acid catalysts.