Evaluation of Carbon Footprint of an Engineering Steel for Automotive

Iulian Ciupitu, Anghel Ioncea, Mihaela Taca, Gurbuz Guzey, Jan Langner


In order to quantify the Carbon Footprint (CFP) for an engineering steel from High-Strength Low-Alloy (HSLA) class, forged to obtain an automotive crankshaft, an environmental performance evaluation was made. The results of Life Cycle Inventory (LCI) for steel crankshaft manufactured by conventional and respectively multidirectional flash reduced forging technology have been compared. The analysis results show that the new forging technology is an economical and advantageous alternative to the conventional forging process. It may reduce the greenhouse gases emissions, airborne emissions, waterborne emissions and total waste produced in the life cycle chain of automotive crankshaft. These environmental effects are a consequence of the reduction of material consumption with 3.4 kg/crankshaft and 1.581 kWh/crankshaft energy saving from the reduced weight slug. The significant financial and environmental benefits allow a better positioning in the profile market for a manufacturer of automotive crankshafts.


Carbon Footprint, greenhouse gases, Life Cycle Inventory, multidirectional flash reduced forging, engineering steel, crankshaft.

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