Electrodes for welding high-alloy steels ZIO-8

THE MAIN PURPOSE OF. Electrodes with basic coating for welding of important equipment from a double layer of steel from the doped layer of steel grades 12X18H10T 12X18H9T, as well as for welding of intermediate layers and anti-corrosion coatings on parts made of steels of pearlitic class in the chemical and nuclear-power engineering. Welding and welding in all spatial positions with direct current of reverse polarity. NTD GOST 9466-75, GOST 10052-75 (type e-10Х25Н13Г2) TECHNOLOGICAL FEATURES. The rod of wire brand SV-07CR25NI13 according to GOST 2246-70, TU 3-1050-83. The diameter of the produced electrodes 4.0 and 5.0 mm. CHARACTERISTICS OF MELTING OF THE ELECTRODES. Performance (for diameter 4.0 mm) 13.5 g/(A x h):1.8 kg/h. electrode Consumption per 1 kg of weld metal 1.6 kg. THE SPECIAL PROPERTIES. The content of ferritic phase in the weld metal 2,5-5,0%. The weld metal is prone to intergranular corrosion after re-heating to 500-800°C. SYMBOL ELECTROLOVE-10Х25Н13Г2-ZIO-8-Ø-VD GOST 9466-75, GOST 10052-75 E-0053-G20 ISO – E 23.12 B20 AWS (USA) – E 309-15