0.15∼0.35질량%의 C, 0.6질량% 초과 1.5질량% 이하의 Si, 1∼3질량%의 Mn, 0.3∼0.8질량%의 Cr, 0.005∼0.080질량%의 sol. Al, 0.005∼0.060질량%의 Ti, 0.005∼0.060질량%의 Nb, 150ppm 이하의 N, 0.035질량% 이하의 P, 0.035질량% 이하의 S, 0.01∼1.00질량%의 Cu, 0.01∼1.00질량%의 Ni을 포함하며, 잔부가 Fe 및 불가피 불순물로 이루어지고, Ti+Nb≤0.07질량%이고, 인장 강도 1300MPa 이상을 갖는 내식성과 저온 인성이 우수한 것을 특징으로 하는 차량 현가용 스프링 부품용 강이 개시된다.

    Disclosed is steel, excellent in corrosion resistance and low-temperature toughness, for a vehicle suspension spring part, characterized in that it comprises 0.15 to 0.35% by mass of C, more than 0.6% by mass but 1.5% by mass or less of Si, 1 to 3% by mass of Mn, 0.3 to 0.8% by mass of Cr, 0.005 to 0.080% by mass of sol. Al, 0.005 to 0.060% by mass of Ti, 0.005 to 0.060% by mass of Nb, not more than 150 ppm of N, not more than 0.035% by mass of P, not more than 0.035% by mass of S, 0.01 to 1.00% by mass of Cu, and 0.01 to 1.00% by mass of Ni, the balance consisting of Fe and unavoidable impurities, with Ti + Nb ¤ 0.07% by mass, and has a tensile strength of not less than 1,300 MPa.


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    Titel :

    STEEL FOR AUTOMOTIVE SUSPENSION SPRING COMPONENT AUTOMOTIVE SUSPENSION SPRING COMPONENT AND MANUFACTURING METHOD FOR SAME


    Weitere Titelangaben:

    차량 현가용 스프링 부품용 강, 차량 현가용 스프링 부품 및 그 제조 방법


    Erscheinungsdatum :

    2015-11-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / C22C Legierungen , ALLOYS / F16F SPRINGS , Federn



    NEW AUTOMOTIVE-VEHICLE SPRING-SUSPENSION

    Crane, H M | SAE Technical Papers | 1922


    High Sag Resistance Spring Wire for Automotive Suspension

    Takenoshita, Nobuharu / Takamuku, Seizo / Murai, Teruyuki | SAE Technical Papers | 1985


    Continous heat treatment of automotive suspension spring steels

    Heitmann, W.E. / Oakwood, T.G. / Krauss, G. | Tema Archiv | 1996


    New system of spring-suspension for automotive vehicles

    Crane, H.M. | Engineering Index Backfile | 1922


    High sag resistance Spring Wire for Automotive suspension

    Murai,T. / Takamuku,S. / Takenoshita,N. et al. | Kraftfahrwesen | 1985