Flat Steel Bar Prices and Sizes | Steel Flat Bar Guide

Flat steel bar (steel flat bar) is a long steel product with a rectangular cross-section and flat surfaces. It is used in many industries, from machine manufacturing and steel construction to die making and the automotive supply industry. Choosing the right flat bar requires balancing dimensions, grade, tolerance, and price. In this guide, you will find the factors affecting flat steel bar prices, standard flat bar sizes, and a weight table.

What is a flat steel bar and where is it used?

What is a flat bar? A flat bar is a flat steel profile whose width is significantly greater than its thickness, with sharp or slightly rounded edges. Hot-rolled flat bars are manufactured according to EN 10058, while cold-drawn flat bars are manufactured according to EN 10278. The main applications include:

• Machine frames, chassis, and fastening components
• Die plates, blades, and key manufacturing
• Steel structures, stairs, railings, and connection plates
• Slides, guide rails, and wear plates
• Automotive and heavy equipment components

If you are wondering about the differences between flat steel bars and other similar flat steel products, see our article Differences Between Flat Steel Bars and Similar Steel Products.

Hot-rolled or cold-drawn flat steel bar?

The first question when purchasing a flat steel bar is which manufacturing method is suitable for your application.For structural and welded fabrication applications, hot-rolled flat steel bars are generally sufficient. For components requiring dimensional accuracy, direct assembly without machining, or better surface quality, cold-drawn flat steel bars are preferred. Uyar Çelik can also supply imported cold-drawn flat bars in widths exceeding 200 mm.

Factors affecting flat steel bar prices

Flat steel bar prices are generally calculated per kilogram. The main factors affecting the price per kilogram include:

• Material grade: Structural steels such as S235JR and S275JR are generally economical, while C45, 16MnCr5, and 42CrMo4 flat bars are typically more expensive.
• Manufacturing method: Cold-drawn flat bars are more expensive than hot-rolled flat bars due to the additional processing involved.
• Dimensions: Standard, high-demand sizes are generally more economical, while very wide or custom dimensions may increase the price.
• Tolerance and edge profile: Tight tolerances and sharp-edge requirements increase production costs.
• Quantity and cutting: Bulk orders and custom-length cutting requirements affect the final price in different ways.
• Current market conditions: Changes in scrap, energy, and exchange rates can quickly affect flat steel bar prices.

Standard flat steel bar sizes and weight table

Flat bar dimensions are specified as “width × thickness” (mm). Weight per meter is calculated using the following formula:

• Weight (kg/m) = Width (mm) × Thickness (mm) × 0.00785

For dimensions not included in the table, you can use the Uyar Çelik Weight Calculator to calculate flat bar weight instantly. The values are theoretical, and actual weight may vary slightly depending on manufacturing tolerances.

What should you consider when buying flat steel bars?

We recommend following these steps when ordering the right flat steel bar:

• Determine the grade: Choose a grade that provides the strength required by the application; if welding is required, consider low-carbon grades.
• Choose the manufacturing method: Select hot-rolled or cold-drawn flat bar depending on whether the component will require further machining.
• Specify your requirements: Clearly state your tolerance, straightness, and edge-profile requirements in your request for quotation.
• Request certification: If required, request an EN 10204 3.1 material certificate.
• Specify the length: Clarify whether you need standard stock lengths (6–12 m) or custom-cut lengths.

Steel grade guide for flat bar selection

To achieve the right balance between flat steel bar price and performance, the material grade should be selected according to the application. The following summary provides guidance for common applications:As a general rule, low-carbon grades should be preferred for flat bars that will be welded, while medium-carbon or alloy grades are more suitable for applications requiring higher wear resistance and hardness.

Flat bar cutting and delivery options

Flat steel bars are generally supplied in 6 m or 12 m lengths. However, storage space and material waste can represent significant costs for many businesses. For this reason, custom-length cutting can simplify transportation while reducing cutting time and scrap in the workshop. By specifying the required quantity and individual piece length in your request for quotation, you can receive a clear price including cutting.

Why Uyar Çelik?

Uyar Çelik supplies hot-rolled and cold-drawn flat steel bars in a wide range of dimensions and grades, including S235JR, S275JR, S355JR, C22, C45, and 16MnCr5. With our facilities in Istanbul, Kocaeli, and Karabük, we offer fast delivery, custom-length cutting, and production with standard or special tolerances.

Frequently asked questions

Are flat steel bars priced per meter or per kilogram?

In industrial sales, flat steel bars are generally priced per kilogram. To calculate the price per meter, simply multiply the weight per meter by the current price per kilogram.

Are steel flat bars and flat steel bars the same thing?

Yes. In common usage, both terms refer to the same product. “Flat steel bar” and “steel flat bar” are both used for solid rectangular steel bars.

What sizes are available for cold-drawn flat steel bars?

Cold-drawn flat bars are manufactured in a wide range of dimensions according to EN 10278. You can contact our sales team to check stock availability for the dimensions you require.

Conclusion

Flat steel bar prices vary according to material grade, manufacturing method, dimensions, tolerance, and cutting requirements. To select the right flat bar, first determine the requirements of the application and then choose the appropriate grade and manufacturing method. Request a quote for flat steel bar prices and available stock sizes: +90 (212) 485 98 98 or visit our contact page.