Steel round bars S235JR, C45, 41Cr4

Buy steel round bar at a bargain price in Europe

Steel round bar is a solid rod (wire in small diameters) with a circular cross-section. It is one of the most common and popular types of metal rolling worldwide. Buy steel round bar with diameter 5 - 270 mm in Europe. We offer delivery across the EU. Our warehouse provides hot-rolled and calibrated steel rounds certified according to EN and ISO standards for construction, engineering, and manufacturing.

To ensure supply chain sustainability and technical compliance, UTMK provides certified Round Bar along with a full range of long products, including Square Bar, Hexagon Bar, and Steel Wire Rod. For complex industrial manufacturing, we offer essential process components like Round Forgings and Hot-Finished Seamless Pipe (SMLS). Our data-driven approach and ISO-certified inventory help mitigate risks, delivering a comprehensive turnkey solution for your engineering projects.

Production of steel round bar

Depending on the production method, there are hot-rolled and cold-rolled (cold-drawn) steel rounds. Hot-rolled is manufactured and used more often, as it can be produced in large batches. The essence of the hot rolling process is the passage of a pre-heated billet (temperature about 1000°C) through a rolling mill, where the distance between the rolls gradually decreases. Thus, a bar of the required diameter is obtained at the outlet.

Cold rolling is used in cases where it is necessary to obtain metal rolling with the most precise surface (calibrated profile). In this case, a hot-rolled bar is used as a billet, subsequently subjected to additional processing (stamping, forging, etc.).

In many cases, metal rolling is subjected to special heat treatment to give it increased mechanical characteristics. The most common types of heat treatment are quenching, annealing, tempering, aging, and normalization. As a result, it is possible to obtain more durable, wear-resistant, plastic, etc. steel.

Technical characteristics of round metal rolling

Requirements for this type of metal rolling are regulated by European standards. The main one is EN 10060 (closest analogue to GOST 2590-2006 "Hot-rolled steel round bars"), which regulates the dimensions and tolerances of hot-rolled steel rounds. In addition, the production and assortment of calibrated steel rounds are regulated by EN 10278 (closest analogue to GOST 7417-75 "Calibrated round steel"). This standard applies to cold-rolled and cold-drawn steel.

According to these documents, round bars can have a diameter from 5 mm to 70 mm. Large diameters are produced according to specifications and agreements between the customer and the manufacturer. At the same time, rolled products with a diameter of 5 - 9 mm are released in coils, more than 9 mm – in bars of measured and unmeasured length (from 1 to 12 m, depending on the steel grade).

Round bars are classified by processing quality and ISO tolerance classes:

The type and grade of steel are the main parameters determining the characteristics of metal rolling. Round bars are made from the following types of steel:

• Ordinary quality.
• Quality structural.
• Low-alloy structural.
• Alloy structural.
• Heat-resistant and heat-proof steel round profiles.
• Tool die steels.
• Spring steels.
• Heat-resistant structural.
• Bearing steels.
• Tool steels.
• High-speed tool steels.
• Carbon tool steels.
• High-alloy stainless rounds (corrosion-resistant).
• Galvanized metal rolling with anti-corrosion zinc coating on the surface.

In addition, metal rolling (and steel round bars in particular) is distinguished by condition: it can be long-storage stock or restored. Long-storage stock should be understood as rolled products that have not been used anywhere and were stored in a warehouse. Restored refers to used rounds that have undergone restoration procedures, such as cleaning, grinding, etc. Most often, such used metal rolling was used in metal structures, supports, etc., which were later dismantled.

Also, sometimes "lying" (in quotation marks) profile is distinguished – this is metal rolling not of warehouse storage, which for one reason or another was not used (for example, purchased and delivered to the construction site, but subsequently not useful).

Application of steel round bar

Steel round bars are used in almost all areas of industry and construction.

• In construction, the round profile is the basis of many metal structures, supports, fences, etc. Also, sometimes it is used as reinforcement.
• In mechanical engineering, it is used as billets for the production of various spare parts and details – shafts, axles, springs, bearings, gear elements, fasteners, etc.
• In machine tool building, round bars are widely used for the manufacture of parts for stamping units, cutting tools, etc.
• In the chemical and food industries, stainless rounds are used to make equipment parts subject to high requirements for corrosion resistance and resistance to aggressive environments.
• In shipbuilding, shafts (propeller, thrust), individual parts of ship hulls, etc. are produced from round bars.

You can read more about the application of round metal rolling in various fields in the corresponding articles on our website.

Where to buy steel round bar?

Europe is a region with developed mechanical engineering, energy, chemical industry, and other sectors. In this regard, many enterprises are interested in stable supplies of round bars. UTMK company is a large metal trader ready to supply its partners with any volumes of metal rolling. On our website, the buyer will find a wide range of round profiles produced from various steel grades. Here you will surely select rolled products that most accurately meet your needs!

UTMK offers a wide range of round section rolled products corresponding to the above EN, ISO, industry regulations, and other standards. Our catalog presents rounds with a diameter of 5 mm - 270 mm, made from various steel grades. In particular, you will find the following round bars:

Here you will find both ordinary steel rod and round with high surface precision. (The definition of "rod" often implies either a round with low surface quality or a hot-rolled billet for further processing by cold rolling methods). If necessary, we can offer cutting services and bending of round bars. Today, our delivery covers Europe, Poland, Bulgaria, delivery across the EU. This allows us to promptly deliver metal rolling to any city. We guarantee timely delivery of round profiles to all regions, as well as the most democratic prices for this type of rolling!