Cold Finished Bar

Kloeckner Metals routinely stocks cold finished bar in ASTM A108 and C1018 in various sizes and formats.

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Routinely Stocked in Standard Lengths

Learn More About Each Cold Finished Bar Grade

General Info About Cold Finished Bar

The cold finishing process results in many advantages. It provides high tensile strength, yield strength, straightness, uniform thickness, smooth and polished finishing character, an unoxidized bright coloring, improved hardness, and tight size tolerances that are true to shape.

Cold finishing is a highly efficient process that occurs close to or at room temperature. The steel requires a pass through high pressure rollers and oil to achieve uniform thickness and a clean finish. One slight disadvantage of the cold finishing process is a decrease in ductility. However, cold finished products will resist breaking under tension.

Cold worked bar can be used for a wide range of applications, including home appliances, architectural fixtures and detailing, tools and mold components, motor mounts, brackets, metal furniture and other products that require a smooth, clean finish and even thickness throughout.

Kloeckner Metals routinely stocks A108 cold finished squares, A108 cold finished rounds, A108 cold finished hexagons, and A108 cold finished flats. Kloeckner Metals also stocks C1018 cold finished squares, C1018 cold finished rounds, C1018 cold finished hexagons, and C1018 cold finished flats.

More Details About Each Cold Finished Bar Grade

  • ASTM A108

    A108 is a mild, low carbon steel that is best for machining, forming, and welding components that do not require high strengths, including fixtures and mounting plates. ASTM A108 has a yield strength of 54,000 psi and can be heat treated. Kloeckner Metals supplies A108 cold finished squares, A108 cold finished rounds, A108 cold finished hexagons, and A108 cold finished flats.

  • AISI C1018

    C1018 steel is a general purpose, low carbon steel. It shows good weldability, quality surface hardening, improved machinability, and yield strengths up to 60,000 psi.

    C1018 is often used in machine parts, threaded gears, shafts, spacers, and other components that do not require high strength but benefit from good wear resistance and a clean surface finish. Kloeckner Metals supplies C1018 cold finished squares, C1018 cold finished rounds, C1018 cold finished hexagons, and C1018 cold finished flats.

Frequently Asked Questions

  • What is the difference between cold finished squares, rounds, hexagons, and flats?


    Cold finished bar products can be formed into different shapes to meet various project needs. Squares, rounds, hexagons, and flats are considered different bar formats and each one has a unique cross section.

    While these steel bar formats are also achieved through the hot rolled process, bar products that are cold finished will provide much tighter tolerances, with a much more aesthetically pleasing surface quality, and even thicknesses throughout. As a result, cold finished bar products are formed truer to shape.

  • What is cold finished steel bar?


    Cold finished steel describes the specific fabrication process. Steel bar is a specific format (like steel plate, steel sheet, or steel coil) and can be further shaped, either to have a flat face, round character, or multiple sides. Cold finished processing differs from hot rolled steel in that the steel is not heated to extreme temperatures before being rolled and shaped. Instead, cold finished steel remains at room temperature and passes through rollers at high pressures.

  • What is a cold finished round bar?


    A cold finished round bar is a steel bar product with a round character that has undergone the cold finishing process.

  • What is a cold finished flat bar?


    A cold finished flat bar is a steel bar product that has a flat face that has been cold worked.

  • What are typical cold finished steel bar tolerances?


    Tolerances for this cold worked steel bar product depend on a few factors:

    • The bar shape (square, flat, round, or hexagon) – Round bar tends to have the tightest tolerances of the bar shapes
    • Carbon content of the steel grade – higher carbon content often leads to higher tolerances
    • Steel thickness and size – tighter tolerances are typical for thinner material

    Typical cold finished steel bar tolerances tend to be strict, which is one of the main benefits of cold worked steel.

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Other Bar Formats

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Kloeckner carries over 200,000 products in our 50+ branches, all of them conveniently located near the industries they serve across the US, Mexico, and Canada. We are proud to stock the widest variety of products in demand by the metals industry. See a sample of our products below.
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