Salt spray testing is a common accelerated corrosion test method that exposed metallic and non-metallic materials (like hydraulic cylinder piston rod）to a highly corrosive environment, over an extended period of time, in order to assess their relative corrosion resistance. The testing can also be used to determine the effectiveness of paints and coatings like hard chrome plating or induction hardened at protecting the substrate material from corrosion.
Salt spray testing is usually carried out to most widely used standard ASTM B117 neutral salt spray test for between 24 and 1000 hours, however this may be specified. The testing typically involves using a 5% sodium chloride (NaCl) solution with is atomised within a sealed chamber to create a saltwater mist, accelerating the corrosion of the materials being tested.
The test samples are generally inspected at regular intervals to monitor and record the degradation of the samples until either the client wants to terminate the test such as when corrosion has initiated or after the specified time has elapsed.
Wuxi YUTONG as a professional manufacturer of hard chrome rod and hollow chrome rod, we can accept all kinds of hours for salt spray testing, 24 hours to 100 hours more required for our customers, if any inquires, please feel free to contact us here.