COMPOSITION OF WELDING TAPE AND WIRE Russian patent published in 2002 - IPC

FIELD: metallurgy of complex-alloy welding materials for corrosion-resistant surfacing of articles of nuclear power station machine engineering. SUBSTANCE: composition may be used for corrosion-resistant surfacing of hydrocracking reactors and for welding oil-chemical equipment and other important-designation articles. Composition of welding tape and wire contains, mas. %: carbon, 0.01-0.025; silicium, 0.17-0.35; manganese, 1.3-1.7; chrome, 17.50-19.50; nickel, 10.00-11.00; niobium, 0.7 -0.9; sulfur, 0.003-0.010; phosphorus, 0.003-0.010; aluminium, 0.01-0.05; nitrogen, 0.01-0.025; copper, 0.01-0.04; plumbum, 0.0005-0.001; arsenic, 0.001-0.005; tin, 0.001-0.005; antimony, 0.001-0.005; cobalt, 0.01-0.05; rare-earth metals, 0.05-0.10; iron, the balance. Composition provides corrosion- and radiation-resistant welding materials for surfacing products with high strength against embrittlement at temperature until 500 C in condition of intensive neutron irradiation at contact with water. EFFECT: enhanced operational reliability and safety of products, increased useful life period of vessels of nuclear reactors of new-generation power plants. 5 cl, 1 dwg, 5 tbl