Heat, corrosion, and wear resistant steel alloy

摘要

A heat, corrosion and wear resistant austenitic steel and article made therefrom is disclosed containing in weight percent about -w/o -Carbon 0.35-1.50 -Manganese 3.0-10.0 -Silicon 2.0 max. -Phosphorus 0.10 max. -Sulfur 0.05 max. -Chromium 18-28 -Nickel 3.0-10.0 -Molybdenum Up to 10.0 -Vanadium Up to 4.0 -Boron Up to 0.03 -Nitrogen 0.25 min. -Tungsten Up to 8.0 -Niobium 1.0 max. - the balance being essentially iron. To attain the unique combination of properties provided by the present alloy w/o C+w/o N must be at least about 0.7, w/o V+0.5 (w/o Mo)+0.25 (w/o W) must be about 0.8-9.0.