Hard chrome plating is an electroplating process that deposits a layer of chromium onto metal surfaces to enhance wear resistance, corrosion protection, and reduce friction for hydraulic cylinder piston rods.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Adhesion | ASTM B571 cross-hatch test passed | |
| Hardness | 800-1000 HV | |
| Porosity | ≤ 5 pores/cm² | |
| Thickness | 20-150 microns | |
| Wear Resistance | Taber Abrasion <10 mg/1000 cycles | |
| Surface Roughness | Ra 0.1-0.4 μm | |
| Corrosion Resistance | >500 hours salt spray (ASTM B117) |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A hydraulic cylinder piston rod is a precision-machined, load-bearing component that converts hydraulic pressure into linear mechanical force.
A precision-machined cylindrical component that serves as the force-transmitting element in hydraulic cylinders.
The cylindrical structural component that transmits force and motion in a hydraulic cylinder piston rod assembly.
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Decorative chrome is thin (0.25-1.0 microns) for appearance with nickel undercoat, while hard chrome is thicker (20-150 microns) for engineering applications with direct bonding to substrate for wear resistance.
It reduces friction by 30-50%, extends seal life by preventing rod surface degradation, provides corrosion resistance in harsh environments, and increases service life by 3-5 times compared to uncoated rods.
Hexavalent chromium processes require strict wastewater treatment and air filtration. Trivalent chromium alternatives offer reduced toxicity but may have different performance characteristics. Compliance with EPA and REACH regulations is essential.
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