EPiC database - Steel bar

This material is part of the free Environmental Performance in Construction (EPiC) Database. The EPiC Database contains embodied environmental flow coefficients for 250+ construction materials using a comprehensive hybrid life cycle inventory approach.<br><br>Steel is a ferrous metal and is an alloy of iron and carbon, as well as potential other elements. It has a very high tensile strength. Steel has been used in the construction industry for over a century.<br><br>The core material for making steel is iron, which is found in iron ore. Iron is extracted from iron ore in blast furnaces through the smelting process, while controlling for the content of carbon. The molten steel is usually further processed before being cast for its final use.<br><br>Steel is commonly used in the construction industry, mainly as a structural material. Steel (flat) bars are used as frames and cut and welded into steel plates.

本材料属于免费开放的建筑环境性能（Environmental Performance in Construction, EPiC）数据库的组成部分。该数据库采用综合混合生命周期清单法，收录了250余种建筑材料的隐含环境流系数。

钢材属于铁基金属，是以铁与碳为主要成分、可添加其他元素的合金，具备极高的抗拉强度，在建筑行业的应用历史已逾百年。

钢材生产的核心原料为铁，铁赋存于铁矿石中。工业上通过高炉冶炼工艺从铁矿石中提取生铁，并严格控制碳含量；钢液通常需经进一步加工后，方可浇铸为最终成品。

钢材在建筑行业应用广泛，主要作为结构材料使用：扁钢条可用于搭建框架，也可经切割、焊接加工制成钢板。