The need to fully comprehend the potential of pipelines in fuel ethanol applications has necessitated
this study. The influence of chloride in E20 on fracture toughness and tearing resistance of micro‐alloyed
steel (MAS) was studied with three‐point bend specimens. Monotonic J‐integral tests were conducted
with and without chloride. Results show a decrease in fracture toughness of MAS in the presence of
chloride, and a concurrent increase in its ductile tearing resistance. Fractographic examinations showed
that chloride in E20 promoted quasi‐cleavage fracture
