发明授权
- 专利标题： Hot rolled and air hardened steel for manufacturing structural tubes and method thereof
- 专利标题（中）： 用于制造结构管的热轧和空气淬火钢及其方法
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申请号： US74800申请日： 1993-06-10
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公开(公告)号： US5370751A公开(公告)日： 1994-12-06
- 发明人: Ingo von Hagen , Ulrich Menne , Ulrich Hoffmann , Bernhard Vogelsang
- 申请人： Ingo von Hagen , Ulrich Menne , Ulrich Hoffmann , Bernhard Vogelsang
- 申请人地址： DEX Dusseldorf
- 专利权人： Mannesmann Aktiengesellschaft
- 当前专利权人： Mannesmann Aktiengesellschaft
- 当前专利权人地址： DEX Dusseldorf
- 优先权： DEX4219336 19920610
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C22C38/32 ; C22C38/38 ; C21D9/08 ; C22C38/28
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%.
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