| 摘要 |
A ferritic alloy steel having good creep strength and cyclic oxidation resistance at elevated temperatures up to 982 DEG C (1800 DEG F) with an optional final anneal at 1010-1150 DEG C (1850 DEG -2100 DEG F) consisting essentially of from about 0.01% to about 0.30% carbon, about 2% maximum manganese, greater than 2.35% to about 4% silicon, about 3% to about 7% chromium, about 1% maximum nickel, about 0.15% maximum nitrogen, less than 0.3% aluminum, about 2% maximum molybdenum, at least one element selected from the group of niobium, titanium, tantalum, vanadium and zirconium in an amount up to 1.0% and the balance essentially iron. |
