Structural Flat Bar
Structural Flat Bar
Structural flat bar is also called a rectangular bar and is used in various construction and manufacturing applications. Allied Steel is a trusted supplier of flat steel bar products in New York, New Jersey, and Pennsylvania.
Hot Rolled Flat Bar: This flat bar is formed at high temperatures and is often used in construction projects like flitch plates for reinforcing structures.
Hot Rolled Strip: This is similar to a hot rolled flat bar but it is thinner. It is usually used for structural and decorative purposes.
Cold Rolled Flat Bar: This flat bar is processed at room temperature and results with a smoother surface finish. It is often used in architectural and decorative applications.
Universal Mill Plate: This is a flat steel product that has precise thickness and width specifications. This plate is commonly used in heavy-duty structural applications like floor plates, base plates, or stiffeners in bridges, buildings, and machinery.


Available Grades
Hot Rolled Flat Bar available in ASTM A-36, ASTM A-529, ASTM A-572 & ASTM A-588
Hot Rolled Strips available in commercial quality
Cold Rolled Flat Bar available in grade 1018
Universal Mill Plate ASTM A-36, ASTM A-529, & ASTM A-588
Would you like additional information on thicknesses and sizes?
![]()
Joshua72 days agoTrustindex verifies that the original source of the review is Google.
I was working on a bollard project and needed specific galvanized steel for the project. Nicholas from Allied Steel worked with me on identifying the steel, the kind of steel piping I needed at the price point I needed also. Allied delivered the steel in a very timely manner and the pricing could not have been better. Allied has a lot of different varieties of steel and will work with you on your projects needs. I will be using and recommending Allied Steel for future projects.![]()
Julia75 days agoTrustindex verifies that the original source of the review is Google.
![]()
Diana96 days agoTrustindex verifies that the original source of the review is Google.
Ease of ordering, no issues with delivery or product, open communication from ordering to receiving. Would highly recommend. Product: galvanized diamond plate![]()
Yanette100 days agoTrustindex verifies that the original source of the review is Google.
Allied Steel quoted and delivered items for our company in a timely manner. Nick was very responsive and very professional. We will continue to work with Allied Steel and recommend them.![]()
Spencer108 days agoTrustindex verifies that the original source of the review is Google.
I am working on project that required using a 1/4 steel plates, after doing some research Allied Steel was the right choice. They made it extremely easy to order online, and their response time was so fast. The pricing was competitive and the sales time was very responsive and friendly. It was ready on-time and when I went to pick it up, they were really professional and were open to further business if I needed something, even if not a big commercial customer. If you need for metal products I would high recommend looking at Allied Steel for a quote.![]()
Michael114 days agoTrustindex verifies that the original source of the review is Google.
Put in my information for what i was needing for steel. They got back to me quickly and we got together and it was a very easy process. They are very professional and super nice. I even had to switch my delivery time to later and he did that at no extra charge which was very appreciated. The next order i need will definitely be going through them again.![]()
Ryan122 days agoTrustindex verifies that the original source of the review is Google.
Rebar order was correct, on time, and fairly priced. I couldn’t recommend Allied steel more for rebar orders.![]()
Edward131 days agoTrustindex verifies that the original source of the review is Google.
Super professional. I emailed my specifications, within an hour I had a price. I spoke to an intelligent sales person that understood my order, I placed my order, I got exactly what I wanted. Quick & a Fair price! Also, On time! And galvanize to perfection. What more could anyone want? A super professional outfit.![]()
Brian144 days agoTrustindex verifies that the original source of the review is Google.
Easy to work with, quick response, quick fabrication. Provided exactly what was ordered.![]()
Jarod170 days agoTrustindex verifies that the original source of the review is Google.
Michael was knowledgeable, efficient, and material was ready on time. Would buy again.