Investigation of corrosion properties of box boring din 20MnCr5 steel bars Nurullah Şahin, Aysun Işikgül, Umida Ziyamukhamedova, Hayrettin Ahlatci, Mustafa Acarer and Mucahit Sevim E3S Web of Conf., 401 (2023) 05035 Published online: 11 July 2023 DOI: 10.1051/e3sconf/202340105035