What is Electrolizing and Industrial Hard Chrome?
Electrolizing is a proprietary thin dense hard chrome plating. The 70-72 Rc coating is applied to
increase wear and corrosion resistance, while reducing friction, galling, seizing, and fretting to
increase a products life span up to 1000 percent. The stringent control of thickness eliminates
grinding requirements, with only light lapping or polishing to improve the finish if needed.
Industrial Hard Chrome is applied thicker usually two times the finished thickness to allow for
grinding to size. Industrial hard chrome is also used to repair metal components.
Both coatings are applied directly to the base or substrate metal without an intermediate coating
such as copper or nickel. This improves the coating’s adhesion to your part and will not flake or
Quality Chrome Plating Specialists
Internal and external surfaces on nearly all shapes and configurations can be uniformly coated.
In general, the exceptions are slots or grooves less than .120” wide and a slot or grove having a
depth greater than its width, which includes threads and splines.
Holes or Bores less than .187” in diameter cannot be plated.
Generally, parts should be less than 120” in length, 40” in diameter and not exceed 1500 pounds.
Parts in excess of these limits should be discussed with us.
Frequently Asked Questions
Plating can be done on all ferrous and most non-ferrous metals; for example, tool steel, stainless
steel, bronze, beryllium-copper, copper, and aluminum.
The coating is not recommended for tin, magnesium, titanium, beryllium, columbium, and lead.
What kinds of metals can be chrome plated?
What are the plating size limitations?
Are there Surface Geometry limitations?
Electrolizing, Inc chrome plates per many specifications; for example, AMS 2460
(QQ-C-320), AMS 2406, AMS 2438, Mil-C-23422, DPS 9.71, DPS 9.84, EMS 250, PS13102,
PWA 48, and BAC 5709 Type IV, and dozens of others.
Please contact us with your process specification if not listed here.
What plating specifications are met by Electrolizing?
1947 Hooper Ave. Los Angeles, CA 90011
How thin or how thick should the coating be?
The coating thickness dimension and tolerance shall be specified on each part drawing.
The practical coating range is from 0.000050”(50 millionths) to 0.0006”(6 ten-thousands) for the
Electrolizing process. The tolerance is plus or minus ten percent of its true thickness.
For industrial Hard Chrome for grind, plating should be between 50% to 25% of desired
thickness after grind. For example, .004” thickness is recommended to achieve a .002” after grind
plating. Additionally, if a .005” thickness is desired then a thickness of .008” to .010” is
Shown below in figures 1 and 2 are typical magnified cross sections of Industrial hard chrome
plating and thin dense hard chrome plating.