PRODUCT WITH EXTERNAL SURFACE OF ZIRCONIUM ALLOY AND METHOD FOR ITS PRODUCTION Russian patent published in 1998 - IPC

FIELD: production of products on zirconium base. SUBSTANCE: the product has at least one external surface of alloy on the base of zirconium. Said alloy comprises mas.%: tin, 0.40-1.70; ferrum, 0.05-0.25; chromium, 0.03-0.16; nickel, not more 70 and not less 300 ppm. It also comprises admixture, ppm: aluminium, not more 75; boron not more 0.5; carbon, not more 270; cadmium, not more 0.5; cobalt, not more 20; copper, not more 50; hafnium, not more 100; hydrogen, not more 25; magnesium, not more 20; manganese, not more 50; nitrogen, not more 65; silicium, not more 120; molybdenum, not more 50; titanium, not more 50; tungsten, not more 10; vanadium, not more 3,5; oxygen and zirconium, the balance. EFFECT: improved resistance against node.