Stainless Steel Flat Bar

Stainless steel flat bar is a common use case for polished stainless steel, typically 304 stainless steel. Flat bars are used for various structural supports and functional elements, including braces, trim, frames, and more. These products are commonly used across a wide variety of industries, including construction and engineering, architecture, elevators and escalators, and more.

At Polished Metals, we produce high-quality polished stainless steel flat bar products used across many industries, for projects of any scale. With our 50,000 square foot in-house metal polishing facility, our team is able to process high-volume orders without sacrificing quality and while meeting tight deadlines and specifications. Learn more about our stainless steel flat bar offerings or reach out to us to receive a quote for your project.

stack of stainless steel flat bars

What Is Stainless Steel Flat Bar?

Stainless steel bar is a term used to describe stainless steel that is cut, rolled, or extruded to an elongated, yet solid shape. Bars may be round, rectangular, square, or formed into other shapes. Bars are distinct from tubes, which are hollow in the middle.

“Flat bar” refers to bars that have a rectangular shape—that is, bars which are significantly wider than they are thick. Polished stainless steel is commonly used for flat bar applications.

Use Cases for Stainless Steel Flat Bars

The use cases for stainless steel flat bars—both mirror polished and with satin finishes—are varied, but primarily structural or functional in nature. For instance, flat bars are commonly used for bracing and structural supports within architectural or construction projects, or for building various types of frames. 

When it comes to more visual or ornamental applications, stainless steel flat bar is less common, but still seen relatively often. In these cases, flat bars may be used for decorative trim using a more mirror polished finish. Meanwhile, some use cases for stainless steel flat bars blend both function and form, such as for safety railings within elevators and escalators.

Broadly speaking, stainless steel flat bar is most commonly seen within the following industries:

  • Construction and engineering
  • Architecture and design
  • Manufacturing, particularly for machines and automobiles

Why Use Stainless Steel?

Stainless steel is among the strongest metals in the world, particularly among metals in common usage. While rarer and more expensive metals such as tungsten are able to outperform stainless steel in terms of raw strength, most stronger metals are significantly more expensive, making them impractical for large-scale projects.

The sheer strength of stainless steel generally makes it an ideal choice for any form of structural project or for products primarily used for functional purposes, such as flat bars. In addition, stainless steel is also highly resistant to corrosion and rust and less likely to warp than many other metals.

Leading Stainless Steel Flat Bar Supplier

At Polished Metals, we’re known throughout the world for our best-in-class metal finishing services. Our expansive inventory includes a broad selection of metal types and extruded products, including bars used across various industries. Whether your project requires stainless steel flat bar or any of our various product offerings, our team is prepared to meet your needs with superior quality and customer service.

You know you’re working with the best when you work with the Polished Metals team. If you have questions about our flat bar offerings or have custom metal finishing needs, please reach out to us.


“Plain and simple, we could not do what we do nearly as well without the consistent quality and support that we get from the entire team at Polished Metals Ltd. Your metal is top-notch, and the service that we get from David and Mary is even better! Our team has always enjoyed working with you guys, and we look forward to continuing our relationship for years to come.”

Architecture and Design

“I have worked with Polished Metals periodically throughout my 18 year carrier in the custom metal fabrication industry. They have been a consistent, reliable vendor for me both in regards to informational needs and as a product supplier. Quotes are often required to be turned around by me very quickly and Bob Gunther at Polished Metals sends me pricing and lead-times extremely fast. Our product arrives when we are told it will and if there are any delays (which does not happen often) we are informed ahead of time, which is appreciated. Product arrives undamaged and is of good quality 99% of the time and when there is an issue with damage or defects Polished Metals responds quickly and makes things right quickly. I highly suggest using Polished Metals for your quality metal needs.”

Architecture and Design

“Mary, It has been a pleasure working with you over several years. A fabricator is only as good as his suppliers, that is why we worked with you. You are one of the best in the industry.”

Architecture and Design

“When it comes to metal companies there are loads of companies that talk a good game, but Jay Isherwood from Polished Metals helps you make it happen. Polished Metals has offered us a great service with unparalleled consistency and amazing quality control. He has given us the confidence we needed to make an accurate timetable with our clients and each time, delivered as promised. Looking forward to the next project and working together again, thank you.”

Architecture and Design

“Our company produces and installs complex high-end projects in New York City. Procuring the materials for projects like the Edge Observation Deck at Hudson Yards can be extremely involved. Polished Metals exceeded our requirements for all our architectural metal needs on this and many other demanding NYC projects. Over the years they have provided everything from raw material to complex fabricated components for our installations. The key to our relationship has been outstanding communication and trust. As anyone in the construction industry knows things can change in an instant, how a company responds to those changes is critical. Mary and the whole team at Polished Metals have shown that they not only respond but have come through for us time and again.”

Architecture and Design

“Working with Polished Metals is always a pleasurable and exceptionally professional experience. Their range of capability is nearly limitless and in the fabrication industry they are extremely helpful in making sure a top quality product is delivered every single time. The sales team is nothing short of professional, they are very knowledgeable of the industry and they deliver top shelf service every time. Material range is everything we could need and they are surely a top choice when it comes to purchasing material for a project, large or small. If you want a top quality product and an enjoyable experience in receiving it, choose Polished Metals!”

Architecture and Design

“Polished Metals has been a Preferred Vendor of ours for over a decade. Our corporate philosophy dictates that we have Alternate or Secondary Supplier for all product, with the exception of #8 Mirror Polished Stainless Steel. We’ve tried to qualify other suppliers to no avail, as none of them can compete in any of the critical categories. The Customer Support provided by Bob Gunther cannot be replicated, pricing is fair, delivery is always on-time and quality is fantastic. As the Corporate Purchasing Manager for the last 7 years, not once have I had a negative experience with Polished Metals. I can’t say enough good things about them.”

Architecture and Design

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