THE MECHANICAL PROPERTIES OF S45C HARD CHROME PLATED STEEL BAR

 S45C Hard Chrome Plated Steel Bar usually used for producing hydraulic cylinder piston rods,It goes through the machining process of cold drawn, peeling,  grinding, polishing, and hard chrome plating, in order to enhance the surface hardness for friction and corrosion resistance; the material will also be easier for further machining, and its precision can achieve international standard.The S45C  chrome plated rods can be application for Join Pen, High-Strength Screw, Bolting, Sliding Bar and Auto Parts.For Plastic Machines parts: Main Rods, Screw Bars and Feeding Bars.Features:

  • Material：JIS S45C、SAE1045、DIN CK45、EN8
  • Application：Pneumatic/ Hydraulic Cylinder, Engineering Machine, Hydraulic/ Pneumatic Auto Machine, Plastic Injection Molding Machine.
  • Thickness of Chrome Layer：min 20/25/30/50 Micron or customized
  • Hardness of Chrome Layer： HV850 min. (0.1)
  • Surface Roughness：Ra 0.2μm max.
  • External Diameter Accuracy：ISO h7、f7、h8、f8、g6
  • Straightness： 0.5/1000
  • Roundness： Ra <= 0.2u

●Material Grade/ Chemical Composition, Mechanical Property

Chemical Composition %
MaterialCMnSiSPCrMo
450.42-0.500.5-0.80.17-0.370.035 Max0.035 Max  
SAE 10450.43-0.500.6-0.90.10-0.350.050 Max0.040 Max  
S45C0.42-0.480.6-0.90.10-0.350.050 Max0.040 Max  
SAE 41400.36-0.450.65-1.10.10-0.400.04 Max0.04 Max0.75-1.200.15-0.35
42CrMo40.38-0.450.60-0.900.40 Max0.035 Max0.035 Max0.90-1.200.15-0.35
Mechanical Properties
MaterialTS MpaYS MpaElongation %ImpactCondition
SAE 1045 45 S45C6103551539J MinHot Rolled
8006302041J MinQT
SAE 4140 42CrMo490080020 QT

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