Polished stainless steel and satin stainless steel are specific surface finishes available for a variety of stainless steel applications. Though both finishes are a result of a particular stainless steel polish method, they are, in fact, secondary operations necessitated to change the dull gray, “mill finish” appearance when stainless steel leaves the steel mill. Such stainless steel polish methods serve a number of purposes, from increasing protection from surface wear and corrosion to improving the material’s aesthetic appeal.
Polished Stainless Steel
There are as many ways to polish stainless steel as there are benefits to it. However, a polished stainless steel finish, as the name suggests, is recognizable by the material’s smooth and shiny, reflective surface. The polishing process typically involves several stages, including grinding, buffing, and polishing with abrasives of varying fineness. This process helps remove surface imperfections, scratches, and stains, giving the material its shine. The degree of polishing can range from a relatively shiny finish to a highly reflective mirror-like finish.
Satin Stainless Steel
Satin stainless steel, also referred to as No.4 stainless steel, is a brushed finish that gives the material a smooth, matte texture, resulting in a diffuse, subdued, non-reflective surface. The finish is achieved by mechanically brushing the stainless steel surface using abrasive materials, such as sandpaper or wire brushes. This brushing process creates a consistent, non-directional, and uniform pattern of minute, fine lines or grains on the metal surface. The diffuse finish offers a soft shine and ambient reflectivity with a satin aesthetic.
Differences Between Polished and Satin Stainless Steels
There are several differences between polished stainless steel and satin stainless steel that will, in general, depend on the application requirements. The most obvious difference is the finish. As mentioned, polished stainless steel is recognized by its bright, shiny, reflective appearance, while satin stainless steel is identified by its low sheen, and soft, frosted matte finish.
Durability
Stainless steels are well-regarded for their durability, and both satin and polished stainless steel are durable and resistant to corrosion and tarnishing. Though both finishes are resistant to scratches and nicks, they are not scratch-proof. Of the two, due to its shinier surface, polished stainless steel is more susceptible to visible scratches that may show signs of wear sooner than satin stainless steel. Comparatively, the texture of satin finishes does well to hide visible scratches, nicks, and general surface wear.
Maintenance
Another aspect of appearance, and a key difference between polished stainless steel and satin stainless steel, is the maintenance requirements for each. For functional applications, the smooth, non-porous surface of polished stainless steel makes it easy to clean and maintain. However, mirror-like finishes used in decorative or architectural elements are susceptible to scratching, marking, and smudging, requiring more frequent cleaning and polishing. On the other hand, satin stainless steel is relatively easy to clean and maintain. Mild soap and water will usually be sufficient to keep it looking new. The brushed finish helps hide smudges and minor blemishes, too, making it a practical choice for applications where cleanliness is essential.
Applications
Polished stainless steel is used in a variety of applications where both corrosion resistance and an attractive appearance are important. The reflective and clean appearance of polished stainless steel makes it a popular choice for both functional and decorative purposes and for use in general sheet metal fabrication. It’s found in architectural elements, kitchen appliances, medical devices, automotive parts, jewelry, and decorative items. Its smooth, non-porous finish offers hygienic properties that make it ideal for food, pharmaceuticals, and medical applications. You’ll find polished stainless steel in elevators, automotive interiors, solar, household appliances, kitchen countertops, medical equipment, sculptures, furniture, signage, storefronts, entrances, industrial refrigeration cases, display cases, and truck parts and accessories.
Satin stainless steel’s sophisticated, brushed finish gives it a low-gloss sheen that complements various design styles, from contemporary to industrial. Like polished stainless steel, it is known for its use in architectural elements as well as for its functional applications. The satin finish provides a modern and elegant look while maintaining the durability and corrosion resistance that is characteristic of stainless steel. It is often used in home decor for applications like faucets, door handles, cabinet hardware, and lighting fixtures. In commercial spaces, it is found in restaurants, hotels, and offices for use in fixtures, handrails, signage, and decorative elements. Many kitchen appliances such as refrigerators, ovens, dishwashers, and range hoods feature satin stainless steel finishes. Satin stainless steel accents are commonly seen in modern furniture, including chairs, tables, and shelving units.
Contact the Stainless Steel Experts at Atlantic Stainless
Both polished stainless steel and satin stainless steel have many advantages and offer benefits that depend on the specific application. It’s essential to consider the specific requirements of the application to determine which finish is best for an application. For more information on which stainless steel polish method serves your needs, contact Atlantic Stainless. We are a full-service stainless steel supplier and distributor of the highest quality products, with unmatched service from our team of experts.
