ABSTRACT The ever-increasing pressure on the steelmaking industry to reduce its environmental footprint and achieve higher performance ispushing the sector to continuous improvement of its processes, This new paradigm places steel scrap recycling-based manufacturingprocesses as one of the main alternatives for the steelmaking industry. Using heterogeneous recycled scrap mixtures for producing new andhigher performance steel products requires the use of well characterized scrap to reduce uncertainties of the process. However, ferrousscrap might be stored for long periods of time in scrap yards and be affected by atmospheric corrosion that degrades its initial quality. Inthis paper a new empirical methodology is proposed, which helps quantify the influence of this degradation phenomenon on the Electric ArcFurnace (EAF) performance based on the Value In Use (VIU) of the scrap. The equations proposed allow estimating the extra cost induced bydegradation of ferrous scrap material during storage periods.

中文翻译：

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估算钢铁行业废钢铁在废料场储存期间材料降解造成的经济损失的新方法

摘要 炼钢行业在减少环境足迹和实现更高绩效方面不断增加的压力正在推动该行业不断改进其工艺，这种新范式将基于废钢的制造工艺作为炼钢行业的主要替代方案之一。使用异质回收废钢混合物生产新的和更高性能的钢铁产品需要使用特征明确的废钢以减少过程的不确定性。然而，废铁可能会在废料场长时间储存​​，并受到大气腐蚀的影响，从而降低其初始质量。本文提出了一种新的实证方法，这有助于根据废料的使用价值 (VIU) 量化这种退化现象对电弧炉 (EAF) 性能的影响。提出的方程允许估计在存储期间由黑色废料降解引起的额外成本。