POWDERED HIGH-SPEED STEEL
To provide a powdered high-speed steel that has an excellent balance of wear resistance, toughness and corrosion resistance.SOLUTION: A powdered high-speed steel contains C: 1.0 mass% or more and 1.8 mass% or less, Si: 0.1 mass% or more and 1.5 mass% or less, Mn: 0.1 mass% or more and 1.5 mass% or l...
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| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a powdered high-speed steel that has an excellent balance of wear resistance, toughness and corrosion resistance.SOLUTION: A powdered high-speed steel contains C: 1.0 mass% or more and 1.8 mass% or less, Si: 0.1 mass% or more and 1.5 mass% or less, Mn: 0.1 mass% or more and 1.5 mass% or less, Cr: 7.0 mass% or more and 10.0 mass% or less, Mo: 2.0 mass% or more and 6.0 mass% or less, V: 1.0 mass% or more and 4.0 mass% or less, and Co: 1.0 mass% or more and 5.0 mass% or less. The high-speed steel further contains one or more elements selected from the group consisting of Y, Zr, Ti and Hf in a total amount of 0.25 mass% or more and 2.0 mass% or less.SELECTED DRAWING: None
【課題】耐摩耗性、靱性及び耐食性のバランスに優れた粉末高速度鋼の提供。【解決手段】粉末高速度鋼は、Ｃ：１．０質量％以上１．８質量％以下Ｓｉ：０．１質量％以上１．５質量％以下Ｍｎ：０．１質量％以上１．５質量％以下Ｃｒ：７．０質量％以上１０．０質量％以下Ｍｏ：２．０質量％以上６．０質量％以下Ｖ：１．０質量％以上４．０質量％以下及びＣｏ：１．０質量％以上５．０質量％以下を含有する。この高速度鋼はさらに、Ｙ、Ｚｒ、Ｔｉ及びＨｆからなる群から選ばれた１種又は２種以上の元素を合計で０．２５質量％以上２．０質量％以下含有する。【選択図】なし |
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