Benefits of Chromium Protective Coatings

Unprotected surfaces of major ferrous and nonferrous base metals are subject to several forms of corrosion. Combined with fatigue, corrosion is the significant contributor to the breakdown of the metals. Corrosion is a natural process which reduces the binding energy in metals creating oxidization of the metal which weakness the metal and can cause structural damage. Even stainless steel is not immune to some forms of corrosion. Due to higher surface hardness, Diamond Chromium Coating and Thin Dense Chromium coatings have a longer wear life than stainless steel. Coating less expensive metals as opposed to using chrome or stainless steel can provide a relatively large cost savings, while at the same time increasing the wear life.

Benefits of Chromium Coatings
Chromium Coating technology can reduce the problems associated with severe corrosion. Even pitting, one of the most destructive forms of corrosion, can be avoided with the use of corrosion resistant coatings providing increased efficiency and a reduction in maintenance costs.

Unlike conventional chromium coatings, two particular coatings that use a proprietary processes (both the XADC Diamond Chromium Coatings and the Thin Dense Chromium (TDC) coatings are not off-the-shelf products. They have been custom-engineered to provide a coating solution for problems associated with corrosion and wear abrasion. Chromium is a natural corrosion resistant product. These superior coatings won't crack, chip, or peel. They provide an excellent solution for protecting nearly all ferrous and non-ferrous metals including common molding steels such as H-13, S-7, P-20, 420SS, A-2, D-2, and copper alloys such as Moldmax and Ampcoloy.*

High-durability chromium coatings serve three main purposes:

1. They provide wear and abrasion resistance.
(Due to surface hardness and the micro-nodular finish.)

2. They provide lubricity, release, and friction reduction.

3. They provide corrosion resistance (on tool steel, comparable to 440C stainless steel).

Chromium protective coatings will provide coating solutions that maintain corrosion resistance for many possible applications. Thin Dense Chromium coatings provide a standard plating thickness of .0001/.0003" per surface. However, in molding, the .000050/.0002" range is more realistic, given the tight tolerances that are the industry standard so they won't interfere with the working of industrial equipment, And, these coating solutions also have FDA approval for food processing equipment. In the food industry, these gear wear resistant coatings can provide an excellent solution for machinery faults due to corrosion.
Unlike traditional hard chrome, a thinner deposit of XADC or TDC coatings do not inhibit the coatings' efficiency, and may prevent excessive edge build.
In addition, the hardness of the substrate metal is not an issue; the harder the base metal, the more effective the XADC (98 Rc and TDC (78Rc) coatings become, (i.e., common Rc hardness for tool steels to be coated is 45-55 Rc).

Even in the case of copper alloys, where hardness cannot be dramatically improved, a Chromium corrosion resistant coating can provide protection against abrasive wear, without inhibiting the copper's thermal diffusion properties, making it an excellent coating solution for copper tubing.

These coatings will also extend the life and improve the efficiency of rubber and plastic parts. Surface hardness is increased to 78 Rc TDC and to 98 Rc with XADC coatings.

Overall, these wear resistant coatings can greatly reduce or even eliminate the problems associated with abrasion wear and corrosion that can impact your needs. XADC/TDC coatings can:

1. Reduce downtime associated with parts replacement
2. Lower equipment maintenance costs
3. Enhance durability and extend equipment life
4. And above all improve efficiency and save money!

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