Hot rolled and air hardened steel for manufacturing structural tubes and
method thereof
    11.
    发明授权
    Hot rolled and air hardened steel for manufacturing structural tubes and method thereof 失效
    用于制造结构管的热轧和空气淬火钢及其方法

    公开(公告)号:US5370751A

    公开(公告)日:1994-12-06

    申请号:US74800

    申请日:1993-06-10

    CPC分类号: C22C38/38

    摘要: An air hardening steel which is killed during casting used as material for manufacturing structural tubes for structural elements which are subjected to high mechanical loads, particularly for door reinforcements in the manufacture of automobiles. The steel is composed of in percent by weight:0.15-0.30% C0.50-0.80% Si2.05-3.35% Mnmax. 0.03% Pmax. 0.03% S0.50-1.00% Crmax. 0.60% Momax. 0.05% Al0.01-0.05% Ti0.0015-0.0035% B0.002-0.015% Nremainder iron and impurities,wherein:Ti(%):N(%).gtoreq.3.4%Mn(%)+Cr (%)+Mo(%)+Si(%).gtoreq.3.3%.

    摘要翻译: 在铸造时被杀死的空气硬化钢被用作用于制造结构件的结构管材的材料,其承受高机械负荷,特别是用于汽车制造中的门加强件。 钢以重量百分数计:0.15-0.30%C 0.50-0.80%Si 2.05-3.35%Mn最大。 0.03%P最大 0.03%S 0.50-1.00%Cr最大 0.60%Mo最大 0.05%Al 0.01-0.05%Ti 0.0015-0.0035%B 0.002-0.015%N余量为铁和杂质,其中:Ti(%):N(%)> / = 3.4%Mn(%)+ Cr(%)+ Mo (%)+ Si(%)> = 3.3%。