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Pipeline steel with resistance to microbiological corrosion

Résumé : The invention aims to provide a pipeline steel with resistance to microbiological corrosion on the premise of guaranteeing the advantages of conventional pipeline steel so as to substantially reduce the possibility of microbiological corrosion from material source. The pipeline steel provided by the invention comprises the following chemical components by weight: 0.020 to 0.030% of C, 0.10 to 0.15% of Si, 0.9 to 1.1% of Mn, 1.0 to 2.0% of Cu, 0.30 to 0.35% of Ni, 0.30 to 0.35% of Mo, 0.30 to 0.35% of Cr, 0.045 to 0.055% of Nb, 0.015 to 0.025% of V, no more than 0.0015% of S and no more than 0.0050% of P, with the balance being Fe. The elemental Cu is added into the pipeline steel, so after aging treatment, the pipeline steel has greatly improved strength and excellent microbiological corrosion resistance.
Domaine de référence : Biocorrosion
Auteur 单以银, 杨柯, 史显波, 严伟, 王威, 杨振国, 徐大可
Année de parution : 2017.
Type de document : Brevet.
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Ce projet est financé par le Fonds Européen de Développement Régional, la Région Normandie et le Conseil Départemental de la Manche.