PURPOSE: A corrosion in seawater fatigue testing machine is provided to receive fatigue by seawater only and prevent the seawater from leaking from a water tub to perform precise test. CONSTITUTION: A corrosion in seawater fatigue testing machine includes a water tub, a lower part connector, and a specimen(30). In the water tub, the seawater is stored. The water tub is mounted on the lower part connector. The lower part connector supports the water tub. The specimen passes through the water tube in the vertical direction and the lower part thereof is connected to the lower part connector. The load of the seawater and water tub is applied to the lower part connector.
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