A steel for wheel containing in mass%, C: 0.65 to 0.84%, Si: 0.4 to 1.0%, Mn: 0.50 to 1.40%, Cr: 0.02 to 0.13%, S: 0.04% or less and V: 0.02 to 0.12%, wherein Fn1 expressed by the following formula (1) is 32 to 43, and Fn2 expressed by formula (2) is 25 or less, the balance being Fe and impurities, P, Cu and Ni in the impurities are P: 0.05% or less, Cu: 0.20% or less and Ni: 0.20% or less: Fn ¢ 1 = 2.7 + 29.5 × C + 2.9 × Si + 6.9 × Mn + 10.8 × Cr + 30.3 × Mo + 44.3 × V Fn ¢ 2 = exp 0.76 × exp 0.05 × C × exp 1.35 × Si × exp 0.38 × Mn × exp 0.77 × Cr × exp 3.0 × Mo × exp 4.6 × V The steel for wheel is excellent in balance of wear resistance, rolling contact fatigue resistance and spalling resistance, includes high yield strength at high temperature and high ductility, and can give a long life to the wheel.


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    Titel :

    Steel for wheel


    Beteiligte:

    Erscheinungsdatum :

    26.12.2017


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    C22C Legierungen , ALLOYS / B60B VEHICLE WHEELS , Räder für Fahrzeuge / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS



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