Heat resisting alloyed steel
AssigneeKubota Corporation
InventorsShinichi Murakami, Katsutaro Akamatsu, Toshiaki Morichika, Hisashi Hiraishi
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Abstract
A heat resisting alloyed steel having a highly improved compressive strength at the elevated temperature within the range of 1,250.degree. to 1,300.degree. C. contains carbon, silicon, chromium, nickel, manganese, cobalt, molybdenum, phosphorus, sulfur, niobium and iron. Tungsten may be added as desired.
Claims2
A heat resisting alloy having a high compressive strength at elevated temperature which consists essentially of carbon in an amount of not more than 0.15%, silicon in an amount of 1 to 2%, chromium in an amount of 25 to 32%, manganese in an amount of 1 to 2, nickel in an amount of 10 to 25%, cobalt in an amount of 25 to 45%, molybdenum in an amount of 0.3 to 10%, phosphorus in an amount of not more than 0.04%, sulfur in an amount of not more than 0.04%, niobium in an amount of 0 to 3%, and iron as the remainder, said percentage being based on the total weight of the composition.
A heat resisting alloy having a high compressive strength at elevated temperature which consists essentially of carbon in an amount of 0.10 to 0.14%, chromium in an amount of 26.1 to 29.4%, silicon in an amount of 1.0 to 1.8%, manganese in an amount of 1.1 to 1.8%, nickel in an amount of 15.2 to 24.5%, cobalt in an amount of 38.4 to 45.1%, molybdenum in an amount of 0.5 to 8.0%, phosphorus in an amount of 0.02 to 0.03%, sulfur in an amount of 0.024 to 0.029%, niobium in an amount of 0.3 to 3%, and iron as the remainder, said percentage being based on the total weight of the composition.
Dependencies are inferred from the claim text.