Wuppermann expands calculation model for CO2 footprint
German steel processor group Wuppermann has widened its calculation model for CO2 emissions, WTopCarb, which it introduced in 2023 for hot-dipped galvanized strip, to cover its other products.
WTopCarb serves to calculate the carbon footprint of individual steel products and confirm it by means of a certificate. Its calculation methodology was verified by the Fraunhofer Institute for Environmental, Safety and Energy Technology (UMSICHT). It covers the emissions of the most important input materials, hot strip and zinc, the galvanizing process itself, as well as transport and packaging.
This model has now been expanded beyond Wuppermann’s mainstay of galvanized strip, to also cover tubes and profiles, Kallanish hears. The expansion of the calculation model was again reviewed and confirmed by the Fraunhofer Institute UMSICHT in 2025, Wuppermann notes.
Following the extension, the calculation methodology is now divided into the following product groups. With WProtect, a high-performance film is additionally applied to the hot-dip coated steel strip with strip widths from 600 mm; WTopCor has a high-performance corrosion protection made from a zinc-magnesium alloy with low CO2 emissions.
Tubes includes black and pickled tubes as well as tubes with zinc or zinc-magnesium coating with different cross-sections and diameter; Profiles are pickled, as well as profiles with zinc or zinc-magnesium coating with different cross-sections.
Christian Koehl Germany
