Method of making cold-rolled high strength steel sheet
    33.
    发明授权
    Method of making cold-rolled high strength steel sheet 失效
    制造冷轧高强度钢板的方法

    公开(公告)号:US4058414A

    公开(公告)日:1977-11-15

    申请号:US645330

    申请日:1975-12-30

    申请人: Takashi Matsuoka

    发明人: Takashi Matsuoka

    摘要: Disclosed are a cold-rolled high strength steel sheet having excellent cold workability under the as-annealed condition which consists essentially of, by weight, 0.03 - 0.2% C, 0.6 - 1.5% Si, 1.3 - 3.0% Mn, 0.01 - 0.25% Nb or 0.01 - 0.2% Ti or 0.01 - 0.3% Nb plus Ti, and the remainder of Fe with inevitable amounts of impurities, and the method of making the same. The steel sheet can be as thin as 3mm or less while possessing a high tensile strength of 50 to 100 kg/mm.sup.2, and is extremely suitable for use as a constructional material of car bodies.

    摘要翻译: 公开了一种在退火条件下具有优异的冷加工性的冷轧高强度钢板,其基本上由0.03-0.2%的C,0.6-1.5%的Si,1.3-3.0%的Mn,0.01-0.25% Nb或0.01〜0.2%Ti或0.01〜0.3%Nb加Ti,余量为Fe,不可避免量的杂质及其制造方法。 钢板的厚度可以是3mm以下,同时具有50〜100kg / mm2的高抗拉强度,并且非常适用于车体的结构材料。