18 Mar Trivalent vs. Hexavalent Chrome Plating
Trivalent and hexavalent chrome are two popular forms of chrome plating that both create a hard, protective finish with a lustrous appearance. While many industries are transitioning to trivalent chrome, hexavalent chrome is still a top choice that offers impressive benefits. If you use chrome plating for aerospace, automotive, or other applications, this guide will help you navigate the key aspects of trivalent and hexavalent chrome plating.
What Is the Difference Between Trivalent and Hexavalent Chrome Plating?
Before we compare the differences between trivalent and hexavalent chrome, let’s take a closer look at what they have in common. The chrome finishing process involves submersion in an acid bath, where an electric current is applied to deposit a layer of chromium. Both types of chrome plating can enhance surface durability, corrosion resistance, and aesthetic appeal.
Trivalent Chrome Plating
Trivalent or “tri-chrome” plating gets its name because it uses chromium in its trivalent oxidation state. Compared to hexavalent chrome plating, this process is more environmentally friendly. Trivalent chrome also produces a durable and aesthetically pleasing finish that is similar to hexavalent chrome.
Benefits of Trivalent Chrome Plating
- Durable & Corrosion-Resistant Coating: It provides excellent corrosion protection and a long-lasting finish.
- Aesthetically Pleasing: Trivalent chrome plating results in a bright, attractive finish.
- Efficient processing: The plating process is more energy efficient and often has a faster deposition rate, reducing processing time.
Hexavalent Chrome Plating
Due to its bright finish and superior hardness, hexavalent chrome has been a plating staple for decades. This process is commonly used in aerospace and defense applications, automotive parts such as bumpers and rims, as well as industrial machinery.
Benefits of Hexavalent Chrome Plating
- Durability: This coating is highly resistant to wear and tear.
- Corrosion Resistance: Provides exceptional protection against rust and environmental damage.
- Aesthetic Finish: Produces a shiny, reflective surface ideal for decorative applications.
Trivalent vs. Hexavalent Chrome Plating: Applications and Industry Needs
Many industries are transitioning to trivalent chrome plating to align with stricter environmental policies and sustainability goals. Many automotive manufacturers, for instance, are switching to trivalent chrome to reduce their ecological footprint. However, hexavalent chrome remains essential for certain applications requiring extreme durability and a specific aesthetic.
Choosing the Right Plating Method
When deciding between trivalent and hexavalent chrome plating, consider the following factors:
- Application Requirements: Does your project prioritize durability or environmental compliance?
- Budget: Can you accommodate the potentially higher upfront costs of trivalent plating?
- Regulations: Are there local or industry-specific regulations that favor one method over the other?
Trivalent & Hexavalent Chrome Plating in Phoenix
Whether you’re looking for hexavalent chrome plating or plan on transitioning to trivalent chrome plating, you need an experienced metal finishing provider who can ensure that you get high quality results. CRC Surface Technologies provides over 33 different metal finishing techniques, including trivalent and hexavalent chrome. Our commitment to excellence guarantees that your plated components will meet all regulatory requirements.
Email rfq@chemresearchco.com today to request a quote, or call 602-253-4175 to learn more about our chrome plating services.
Images used under creative commons license – commercial use (3/17/2025). Photo by Tim Mossholder on Unsplash