Abstract

AbstractStainless steel ground anchors are still rarely used in Europe. A project was initiated to demonstrate the technical and economic performance of stainless steels for such applications.Three different steel grades were examined, i.e. two austenitic grades 1.4311 (‘304LN’) and 1.4406 (‘316LN’) and one duplex grade 1.4362 (‘2304N’). All of them had low carbon contents (< 0.03%) and were alloyed with nitrogen to improve their strength properties.Different electrochemical tests were carried out to assess the performance of stainless steel in chloride/sulphate environments. The results confirmed that the investigated stainless steels may be employed for a wide range of corrosive ground anchor environments.

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