Page 980 - MiSUMi FA Mechanical Components Economy Series
P. 980

[Materials]
              Corrosion Resistance of Metal Materials and Their Surface Treatment/Anti-rust Method




           ˺. Corrosion Resistance of Metal Materials and Their Surface Treatment
           Test Method:   Conduct the composite corrosion test according to GB/T 20854ˋ2007 cyclic test method
                                                     }
           Test Conditions:  ΍ Salt Water Spray Test (5%NaCl.35˫)  2hr
                       Ύ Dry (60˫ )               4hr    8hr is one cycle
                       Ώ Wet (95%RH. 35˫p2˫ )     2hr

           1. Comparison of Diff erent Metal Materials (No Surface Treatment)                  Table 1
              Material     S45C        SUJ2        SUS440C      SUS304      SUS316     GSTAR



             Before Test






               48hr





               168hr



           *G-Star is martensitic stainless steel (pre-hardened die steel) made by Daido Steel Co., Ltd.
           2. Comparison of Diff erent Surface Treatments with the Same Material (SUJ2)        Table 2

            Surface Treatment  Not Provided      Ferroferric Oxide Protective Film  Hard Chrome Plated



             Before Test





               48hr






               168hr












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