They were used on west coast routes working from Rome and Naples, with some later seeing service on the Bologna to Ancona line. Some were transferred to Catania, in Sicily.[2]
In 1959, twenty-five locomotives of this class Nos 736.011/23/40/55/73/90/101/2/126/7/131/5/51/8/60/4/6/78/88/90/9/203/7/9/17 were sold to the Hellenic State Railways (Greek Railways, SEK), to add to their Class Θγ; being renumbered 571–595.[2]