A micro-alloyed low carbon steel strip is obtained by hot rolling at temperature of the pre-strip never lower than 900° C. and shows such metallurgical and geometrical features, as well as relating to planarity and deformability, to render the same suitable to obtain structures of low weight and good mechanical resistance, thus being able for use in replacement of cold rolled strips for the production of finished stamped or cut pieces. Said steel strip, having thickness0.7 mm, has a ratio yield load/breaking load70%, a fine grain structure better than grade 10 of ASTM E 112 standard in a percentage higher than 90% of the whole structure and a ratio between breaking limit under strain and yield point /RPo.290%.
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机译：微合金化低碳钢带材是通过在预浇铸带钢的温度不低于900°C的条件下进行热轧而获得的，并且显示出这种冶金和几何特征以及与平面度和可变形性相关的特性，从而使其适合于所获得的结构重量轻且具有良好的机械强度，因此能够代替冷轧带材用于生产冲压或切割成品。所述厚度> 0.7mm的钢带的屈服载荷/断裂载荷之比> 70％，细晶粒结构优于ASTM E 112标准的10级，其百分比高于整个结构的90％，且应变和屈服点/RPo.2>90%下的断裂极限。
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