Lead-free steel for machine structural use with excellent machinability and low strenght anisotropy

Lead-free steel for machine structural use with excellent machinability and low strenght anisotropy

A lead-free steel for machine structural use with excellent machinability and low strength anisotropy, which does not contain Pb and is equal to or higher than a conventional Pb-containing free cutting steel in properties, is provided. This steel includes, on the weight basis, C: 0.10 to 0.65%; Si:...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: IWAMA, NAOKI, TSUNEKAGE, NORIMASA, KOBAYASHI, KAZUHIRO, OWAKI, SUSUMU, FUJII, ISAO, NAITO, KUNIO, UCHIYAMA, MASAO, MORI, MOTOHIDE, NISHIMON, SYOJI, OGO, KAZUTAKA
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:A lead-free steel for machine structural use with excellent machinability and low strength anisotropy, which does not contain Pb and is equal to or higher than a conventional Pb-containing free cutting steel in properties, is provided. This steel includes, on the weight basis, C: 0.10 to 0.65%; Si: 0.03 to 1.00%; Mn: 0.30 to 2.50%; S: 0.03 to 0.35%; Cr: 0.1 to 2.0%; Al: less than 0.010%; Ca: 0.0005 to 0.020%; Mg: 0.0003 to 0.020%; O: less than 20 ppm; and the balance being Fe and inevitable impurities.