It has good corrosion resistance to reducing, oxidizing, nitriding and oxidizing-reducing alternating media, and has high metallurgical stability in long- service at high temperature. Because the content of (Al Ti) does not exceed 0.7%, it has good tensile strength above 600 ℃ and still has good toughness at long-term work below 700 ℃.
For use in applications where high strength and good resistance to carbon and sulfurization are required. Heat treatment baskets, radiation tubes, wire mesh furnace belts and basketers, muffle furnaces, distillers, recuperators, heat treatment equipment and waste incinerators.