03-02-2022 дата публикации
Номер: US20220033942A1
Принадлежит:
An article including a metal having an austenite transformation temperature of 850 degrees C. or more. The metal may be a steel, such as a stainless steel, a martensitic steel, or a martensitic stainless steel. In some embodiments, the metal is a steel including iron, molybdenum, and tungsten, and at least one of the following: manganese, nickel, chromium, and vanadium, where the manganese, nickel, chromium, and vanadium are in the following ranges: manganese: less than 0.1 wt %, nickel: less than 0.7 wt %, chromium: more than 12.5 wt %, and vanadium: more than 0.3 wt %. The article may have a surface coated with inorganic particles. In some embodiments, the article is an extrusion die, such as a honeycomb extrusion die. 1. An article comprising a metal having an austenite transformation temperature of 850 degrees C. or more.2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. The article of claim 1 , wherein the metal is a steel comprising:iron, molybdenum, and tungsten, and 'wherein the manganese, nickel, chromium, and vanadium, which, if present, are in the following ranges:', 'at least one of the following: manganese, nickel, chromium, and vanadium,'}manganese: less than 0.1 wt %,nickel: less than 0.7 wt %,chromium: more than 12.5 wt %, andvanadium: more than 0.3 wt %.9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. The article of claim 1 , wherein the metal is a steel comprising:iron, molybdenum, and tungsten, and manganese: 0 wt % to 0.05 wt %,', 'nickel: 0.35 wt % to 0.65 wt %,', 'chromium: 13 wt % to 14 wt %, and', 'vanadium: 0.35 wt % to 0.65 wt %., 'manganese, nickel, chromium, and vanadium in the following ranges16. The article of claim 1 , wherein the metal is a steel comprising:iron, molybdenum, and tungsten, and manganese: 0 wt % to 0.05 wt %,', 'copper: 0 wt % to 0.05 wt %,', 'nickel: 0.35 wt % to 0.65 wt %,', 'chromium: 13 wt % to 14 wt %,', 'molybdenum: 1.0 wt % to 1.5 wt %, and', ' ...
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