LCA activity in Steel Industry

Abstract

LCA has, from 1990's, been a topic of growing interests to the steel Industry, as well as other Industries, and independent LCA studies have been conducted by several steel companies and regional associations. However as these studies were different in system boundary and methodology, IISI initiated a global “LCI on Steel Industry Products” in order to avoid inconsistency and duplicated effort. In this paper, the original methodology and outline of the database are described. In additionally new methodology, in which recycling credit of scrap is considered in the LCI data, are also introduced. Finally positive impact value of steel products is verified in several examples.