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Flat Bar

O’Neal Steel carries structural flat bar in aluminum, cold-finished, hot rolled, and stainless steel. Whether you're constructing a structure's base or framing industrial doors, we've got the flat bar you need for your next application.

Industries We Serve

Prized for its versatility and durability, flat bar can be used as a stand-alone unit or to increase support in existing structures. Flat bar has found a home with a number of different industries, including:

  • Construction
  • Heavy Equipment Manufacturing
  • Metal Fabrication
  • Shipbuilding

  • Your Trusted Flat Bar Supplier

    With over 100 years of experience in the metals industry, O'Neal Steel is your trusted flat bar supplier. Explore our depth and breadth of inventory in PRONTO® now to find the metal products you need for your upcoming project.

    Need a custom cut performed for your next application? We also offer a variety of industry-leading processing services. Contact our team today to learn more

    METALSHAPE FLATBAR 5

    Flat Bar Defined

    Because of the shape's wide, flat face, flat bar is utilized across a range of projects. Flat bar can easily be customized, cut, and welded for any application.

    Applications of Flat Bar Include:

    • Frame construction
    • Building support

    We offer flat bar in aluminum, stainless, cold-finished, and hot rolled steel. Contact us today to learn more or request a quote.

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    Flat Bar Metal Types

    Aluminum

    GRADES OF ALUMINUM

    O'Neal Steel's extensive inventory of aluminum products are offered in the following grades:

    • 3003
    • 5052
    • 6061
    • 6063

    Learn more about the aluminum shapes and grades we supply here.

    PROPERTIES OF ALUMINUM

    The high strength to weight ratio of aluminum, coupled with its corrosion resistance make it a great material for truck and trailer manufacturers or marine applications. In addition, aluminum has ideal electrical and thermal conductivities, and is heat resistant, making it an ideal choice for power transmission equipment manufacturers.

    Aluminum can be easily formed and machined, and accepts a wide variety of surface finishes, although in most applications it needs no protective coating.

    Are you looking to incorporate aluminum in your next project?

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    Cold-Finished

    COLD-FINISHED GRADE OPTIONS

    • 1018
    • 1045
    • 1215
    • 12L14
    • 4140
    • A1008

    For more technical information on cold-finished steel tolerances, view our certifications.

    O’NEAL STEEL: YOUR TRUSTED COLD-FINISHED STEEL SUPPLIER

    For 100 years, O'Neal Steel has been a leader in the metals industry. Our commitment to excellence, innovative technology, high quality products, and drive to provide the best service for our customers is who we are. We have 18 metal service centers strategically located across the United States to better serve you.

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    Hot Rolled

    HOT ROLLED STEEL VS. COLD-FINISHED STEEL

    There are many differences between hot rolled and cold-finished steel. The first is the process. Hot rolled steel goes through one high heat treatment process, while cold-finished steel requires further processing. After cooling to room temperature, cold-finished steel is then rolled again. This additional treatment process results in a stronger metal that can be used for more precise applications or projects that require a smoother aesthetic appearance. Compared to cold-finished steel, hot rolled steel surfaces are rougher. Hot rolled steel is typically used in applications where precise shapes and tolerances are not critical.

    HOT ROLLED GRADES WE CARRY

    • 1008/20
    • 1018
    • 1020/26
    • 1045
    • 4140/42
    • A1011
    • A36
    • A500
    • A513
    • A572
    • A992
    • AR235

    Browse our vast inventory of hot rolled steel products in PRONTO® today!

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    Stainless Steel

    304 vs. 316 STAINLESS STEEL

    The most common stainless steel alloys are 304 and 316/316L. 304 stainless steel is easy to form, weld, stamp, machine, and fabricate. It holds a high resistance to temperature and corrosion. This material also scores high on the strength index. Stainless steel is very easy to clean and is ideal for industries that demand high sanitation and frequent washing. 316 holds the same resistance, toughness, and strength properties as 304. The difference between 304 and 316 stainless steel is their elements. 304 is 18% chromium and 8% nickel. 316 is 16% chromium, 10% nickel, and 2% molybdenum. 316 also offers more protection against pitting.

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    GRADES OF STAINLESS STEEL

    • 304/304L
    • 316/316L
    • 303
    • 1045

    Explore our stainless steel grade selection, chat with metal experts, and request a quote in PRONTO®.

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