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Hard Chrome Plating  Hard Chrome Plating provides maximum wear protection. It is typically deposited at thickness' ranging from .0001" to .020". The original "workhorse" of the industry, hard chrome plating is still the optimum choice for a variety of applications despite the numerous variations and alternative coatings that have emerged over the years. This coating boasts high ratings in the areas of adhesion, wear, hardness (70 Rc), lubricity, corrosion resistance and stands up well to high temperatures.Flash Chrome Plating Flash Chrome Plating is a thin (.001" to .0007") deposit of chromium. Despite its thinness, it still provides an excellent barrier to corrosion while maintaining most of the beneficial properties of conventional Hard Chrome Plating. Precision Chrome Plating Precision Chrome Plating is simply plating to size within tolerances of your specifications so that the need for finish grinding is minimized or eliminated. This requires meticulous control of the chromium deposit thickness as well as carefully designed plating fixtures. Precision Hard Chrome ranges in thickness from .0001" to .0035". Thin Dense Chrome Plating The use of a more highly concentrated chromium solution makes Thin Dense Chrome even more durable, per unit of thickness than conventional Hard Chrome Plating. This allows thinner deposits without sacrificing the wear resistance characteristics of Hard Chrome Plating. The coating thickness ranges from .000025" to .005" with .0001" being the typical thickness. This is an extremely hard, smooth, uniform coating free of blisters, pits, nodules and sharp edge build-up with very high corrosion resistance. Wear Resistance Five to ten times longer than unplated parts under similar operating conditions. Adhesion Becomes an integral part of the plated surface. Top of page Corrosion Resistance  Chromium will resist attacks from most chemical agents, however each job must be evaluated separately so that a satisfactory plating operation may be attained. Please feel free to call our offices for further information concerning your particular corrosion resistance needs.Practical Plating Thickness For Mill Roll Use The practical plating thickness for hard chrome electrodeposit in a single deposit is approximately .020" thick and any thickness over .008" will require the added expense of finish grinding to maintain dimensional tolerances and "flatness" from end to end. The deposit will become nodular above this thickness and will not be a usable deposit. After the finish grinding operation, the actual thickness will probably be reduced to .015". Repeated plating and grinding operations will enable the deposit thickness to be increased to a possible .050" to .100" but, this great a deposit will be severely stressed and has no advantage over a thinner deposit. Bond strength on all electroplates decreases with plated thickness! In our experience, heated rolls should have a deposit thickness of no more than .004" to .006" maximum. On all other mill rolls there is little or no advantage for deposit thickness above .010". Practically speaking, most mill rolls would require some reconditioning if the outer diameter was reduced by .005" on a side by "dishing", scarring or normal wear. For this reason, greater deposit thickness' have no real advantage and have the disadvantage of being susceptible to fracture by heat or impact.
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