What is the difference between No 3 and No 4 finish stainless steel?

Author: Hou

Mar. 28, 2024



Stainless steel is renowned for its durability, corrosion resistance, and aesthetic appeal, making it a staple in various industries and applications. When it comes to stainless steel finishes, two commonly used options are No. 3 and No. 4. While they may appear similar at first glance, each finish offers distinct characteristics and advantages. Let's delve into the differences between No. 3 and No. 4 finishes and explore their unique features, applications, and more.


No. 3 Finish: The Smooth Matte Look


A No. 3 finish, also known as a "ground" finish, features a smooth, uniform appearance with a matte texture. This finish is achieved by grinding the surface of the stainless steel using abrasive materials until a consistent grain pattern is attained. Here's a closer look at the characteristics of a No. 3 finish:


- Appearance: The No. 3 finish exhibits a soft, matte sheen, making it ideal for applications where a subdued, understated aesthetic is desired.

- Texture: The surface of No. 3 finish stainless steel is smooth to the touch, offering a pleasing tactile experience.

- Indicator: When inspecting a No. 3 finish, you'll notice a uniform, fine grain pattern running in a specific direction across the surface.

- Advantages: This finish is resistant to fingerprints, scratches, and corrosion, making it suitable for high-traffic areas and applications requiring durability and hygiene.

 Number 4 finish stainless steel.webp

No. 4 Finish: The Classic Brushed Look


In contrast, a No. 4 finish, also referred to as a "brushed" or "satin" finish, boasts a distinct brushed texture that adds depth and character to stainless steel surfaces. Here are the key features of a No. 4 finish:


- Appearance: The No. 4 finish imparts a lustrous, brushed appearance characterized by fine parallel lines or "grain" running in one direction.

- Texture: Unlike the smooth matte finish of No. 3, No. 4 finish stainless steel has a textured surface that enhances visual interest and hides minor imperfections.

- Indicator: Upon inspection, you'll observe the pronounced grain pattern created by the brushing process, which contributes to its unique aesthetic.

- Advantages: No. 4 finish offers excellent corrosion resistance and is relatively easy to clean and maintain, making it suitable for a wide range of decorative and functional applications.


Comparing Applications and Considerations


Both No. 3 and No. 4 finishes have their respective applications and considerations:


- No. 3 Finish Applications: Common applications include architectural panels, elevator doors, kitchen equipment, and decorative trim where a clean, uniform appearance is desired.

- No. 4 Finish Applications: No. 4 finish is popular in kitchen appliances, sinks, countertops, and decorative elements where a distinctive brushed texture adds visual appeal.




In summary, the choice between No. 3 and No. 4 finish stainless steel sheet depends on factors such as aesthetic preferences, functional requirements, and application-specific considerations. Whether you opt for the smooth matte finish of No. 3 or the classic brushed look of No. 4, both finishes offer durability, corrosion resistance, and timeless elegance, making stainless steel an enduring favorite in various industries and design contexts.






Please Join Us to post.



Guest Posts

If you are interested in sending in a Guest Blogger Submission,welcome to write for us!

Your Name: (required)

Your Email: (required)


Your Message: (required)