FIELD: metallurgy.
SUBSTANCE: invention relates to alloyed steels and alloys used in nuclear and heat power engineering for making heat-exchange equipments. Invention proposes iron-chrome-nickel alloy comprising the following components, carbon 0.005-0.03; silicon, 0.10-0.60; manganese, 0.80-1.70; chrome, 19.5-23.0; nickel, 30.5-33.0; molybdenum, 2.5-4.0; niobium, 0.9-1.20; yttrium, 0.005-0.01; nitrogen, 0.005-0.025; iron and impurities, the balance, with the following content of impurities, wt.-%: aluminum, ≤0.15; cobalt, ≤0.05; copper, ≤0.15; titanium, ≤0.10; sulfur, ≤0.010, and phosphorus, ≤0.015. Invention provides enhancing resistance of intercrystalline corrosion at temperature below 650°C and enhancing technological strength in welding.
EFFECT: improved, enhanced and valuable properties of alloy.
2 cl, 3 tbl
| Title | Year | Author | Number |
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