STEEL FOR CHISEL AND CHISEL

PROBLEM TO BE SOLVED: To provide a steel for chisel capable of achieving enhancement of durability and a chisel.SOLUTION: A steel for chisel constituting chisel 10 contains 0.39 mass% to 0.41 mass% of carbon, 0.20 mass% to 0.50 mass% of silicon, 0.60 mass% to 1.10 mass% of manganese, 0.003 mass% to...

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Bibliographische Detailangaben
Hauptverfasser: AMADA EIJI, OCHIAI AKIHIRO, TOKOKAGE NORIMASA, NAGAKI YUKO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a steel for chisel capable of achieving enhancement of durability and a chisel.SOLUTION: A steel for chisel constituting chisel 10 contains 0.39 mass% to 0.41 mass% of carbon, 0.20 mass% to 0.50 mass% of silicon, 0.60 mass% to 1.10 mass% of manganese, 0.003 mass% to 0.008 mass% of sulfur, 0.90 mass% to 1.20 mass% of chromium, 0.40 mass% to 0.60 mass% of molybdenum, 0.01 mass% to 0.05 mass% of niobium and the balance iron with inevitable impurities.SELECTED DRAWING: Figure 1 【課題】耐久性の向上を達成することが可能なチゼル用鋼およびチゼルを提供する。【解決手段】チゼル10を構成するチゼル用鋼は、0.39質量%以上0.41質量%以下の炭素と、0.20質量%以上0.50質量%以下の珪素と、0.60質量%以上1.10質量%以下のマンガンと、0.003質量%以上0.008質量%以下の硫黄と、0.90質量%以上1.20質量%以下のクロムと、0.40質量%以上0.60質量%以下のモリブデンと、0.01質量%以上0.05質量%以下のニオブとを含有し、残部が鉄および不可避的不純物からなる。【選択図】図1