Difference Between Hard Chrome & Decorative Chrome Plating

Chrome Plating, often referred to simply as chrome, is a technique of electroplating a thin layer of chromium onto a metal or plastic object. There are two main types of chrome plating used by industries today, hard chrome (industrial or engineered chrome) and decorative chrome (bright or show chrome). The chromed layer can provide protection of the base material, ease cleaning procedures, and increase the surface hardness or aesthetics.

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Hard chrome plating is the process of depositing a thick layer of chromium metal onto metallic components for the benefits of reduced friction, improved durability through abrasion tolerance and wear resistance in general, minimizing galling or seizing of parts, and bulking material for worn parts to restore their original dimensions. It is very hard, measuring between 65 to 69 HRC. Hard chrome tends to be thicker than decorative chrome, with standard thicknesses in non-salvage applications ranging from 0. to 0.020 inch. Unfortunately, greater thicknesses emphasize the limitations of the process, which are overcome by plating extra thickness then grinding down and lapping to meet requirements or to improve the overall aesthetics of the “chromed” piece. Increasing plating thickness amplifies surface defects and roughness in proportional severity because hard chrome does not have a leveling effect.

This type of chrome is the process of depositing a very thin layer (sometimes as thin as 50 millionth of an inch) of chromium over nickel-plated components resulting in a bright, shiny finish. The function of a thin chrome layer is twofold; it protects the nickel from oxidizing or tarnishing and provides wear resistance, preventing surface scratches. The nickel under layer keeps its intended finish longer by providing corrosion protection to the base material. In some applications, copper plating is used as the under layer to improve the strength of the base material.

Both of these finishes are applied in the exact same way, by submerging a part into an electrolyte bath of chromic acid and then passing an electrical current through it. No matter the size or shape of the part, chrome will plate evenly onto the surface. This includes cylindrical parts and parts with uneven surfaces, holes, and recesses. Chrome conforms to many components, making it one of the most used options for surface finishes. Both are easy to clean due to their corrosion and wear resistant properties.

Despite having similar electroplating processes, the form and function of these two plating options make them very different. What you use on your parts will ultimately depend on the environments that they will be in.

We’re confident US Chrome will be your best option for your chrome plating applications because of our engineering approach, exceptional customer service, and regional locations. Contact us now with your questions or coating challenges.
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What Is Chrome Plating, and How Long Does It Last?

Chrome electroplating enhances the appearance and durability of various metal substrates. This surface finishing technique is used for everything from automotive parts to household fixtures to apply a shiny, corrosion-resistant finish. In this post, we explain the chrome plating process, its benefits, applications, and more. 

What Is the Chrome Plating Process?

Chrome electroplating involves depositing a thin layer of chromium onto a metal object’s surface. Here is a brief overview of the process:

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1. The first step is to prepare the surface to ensure proper adhesion.  
2. Next, the substrate is immersed in an electrolytic bath containing a solution of chromium ions.
3. An electric current is then passed through the bath, causing the chromium ions to form a solid chrome layer on the surface of the substrate. 
4. After the chrome layer has been deposited, the plated surface is polished to achieve the desired level of smoothness. (This step is especially important for decorative chrome plating.) 

Types of Chrome Electroplating and Their Applications

Because of its many benefits, chrome plating can be used in a wide range of applications. However, some types of chrome plating are best suited for certain applications. 

• Hard chrome plating is characterized by its ability to withstand corrosion and wear. Hard chrome is ideal for industrial applications or for any metal components that must face harsh conditions or extreme weather. 
• Thin dense chrome plating is very similar to hard chrome and shares many of the same properties. Although it is thinner than hard chrome, it is far more durable than decorative chrome. Thin dense chrome plating is commonly used for aerospace components and medical equipment. It is also a common choice for food service applications because of its resistance to wear. 
• Decorative chrome plating is known for its mirror-like finish. While we don’t offer decorative chrome plating at CRC, it is most often used for household items like faucets and light fixtures, or decorative automotive parts. 

How Long Does Chrome Plating Last?

The longevity of chrome electroplating depends on several factors, including wear, maintenance, and environmental conditions. However, chrome-plated surfaces can last for decades with proper care, ensuring lasting protection and a sleek appearance. In general, chrome-plated components that are exposed to extreme conditions will have a shorter lifespan than those in non-wear situations.

Four Benefits of Chrome Plating

1: Greater Durability

The layer of chrome on the surface acts as a protective barrier that allows the plated components to withstand harsh conditions. Hard chrome plating in particular has high resistance to corrosion and wear. Enhanced durability is crucial for industrial applications where parts are frequently subjected to friction and abrasion.  

2: Improved Appearance

All types of chrome electroplating produce a smooth, attractive finish. Decorative chrome plating results in a bright, mirror-like finish that’s ideal when appearance is a priority. But although hard and thin dense chrome are slightly duller, they both produce a sleek satin finish that lasts longer than decorative chrome. Chrome plating can even be used to remove flaws and restore the appearance of refurbished parts.  

3: Exceptional Corrosion Resistance

Chrome plating—especially hard chrome—is highly resistant to corrosion. Chromium naturally forms a passive oxide barrier that protects the underlying material from environmental factors like moisture, chemicals, and salts. As a result, chrome plating is commonly used for parts that are frequently exposed to the elements. 

4: Easy Maintenance

Chrome-plated surfaces are simple to clean—you can easily remove fingerprints, dirt, and other contaminants with mild soap and water. The smooth and non-porous nature of chrome also makes it resistant to stains.

Hard and Thin Dense Chrome Plating in Phoenix

Chrome electroplating is a versatile surface finishing technique that’s valuable in many industries thanks to its unique properties. If you’re interested in chrome plating, always choose professional metal finishing services to ensure quality results. CRC Surface Technologies is highly experienced in applying both hard and thin dense chrome plating, and we service local machine shops as well as manufacturers across the country. 

Give us a call at 602-253- to learn more about our chrome plating services, or send a message to to request a quote. 

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