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Hard Chrome Plated Hollow Bar

It not only owns normal characteristics of hard chrome plated steel bar, but also has the advantage of reducing the loaded weight of machine due to the hollow shape.
  • Material：STKM13A、STKM13C、SAE1020、A106B、ST52
  • External Diameter Accuracy：h7、h8、f7、f8、g6
  • Thickness of Chrome Layer：＜Φ20 15μm min.
    　　　　　　　                           ≧ Φ20 20μm min.
  • Hardness of Chrome Layer： HV850 min. (0.1)
  • Surface Roughness：Ra 0.2μm max.

HARD CHROME PLATED HOLLOW BAR