CTS provides hard chrome plated bar. Send your inquiry to cts@ctstubes.com. What is hard chrome plated? Hard chrome plating is an electroplating process in which chromium is deposited from a chromic acid solution . Various types of hard chrome include micro-cracked chromium, micro-porous chromium, porous chromium, and crack-free chrome Thickness of hard chrome plating ranges from 2 to 250µm. What is a chrome-plated bar? Chrome-plated bars and tubes are primarily used as piston rods, a critical component in hydraulic cylinders . The essential function of transforming hydraulic power to a linear motion while preventing the ingress of abrasive media into the hydraulic system will stipulate a set of demands on the rod.