Cold-formed steel profiles, also known as purlins, are structural elements manufactured from low- or medium-strength steel sheet that undergoes a cold-rolling process. The most commonly used sections in projects are purlins with Z, C, Σ, and U cross-sections, which are characterized by high stiffness and relatively low weight. In addition, our product range includes an extensive selection of C- and Σ-shaped profiles with slightly modified shapes, designated C+ and Σ+, respectively . Purlins can be manufactured from sheet metal of various thicknesses , ranging from 1.5 mm to as much as 3.5 mm.
Cold-formed profiles are used in construction, including, among other things, in wall, roof, and floor structures, as well as support elements in industrial machinery and equipment. Compared to traditional structural elements made of reinforced concrete or wood, cold-formed sections are lighter, easier to process and assemble, and more cost-effective.
Cold-formed steel construction profiles are structural elements manufactured from low- or medium-strength steel sheet, which are then subjected to a cold-forming process. These are sections with Z, C, Σ, and U cross-sections that are characterized by high rigidity and relatively low weight, making them widely used in construction and industry. These products vary in appearance and characteristics:
The wide variety of strength parameters for the profiles allows for the optimal selection of the required amount of material and greatly simplifies the design of structures.
Relatively recently, we launched a fully functional new production line dedicated to cold-formed sections. In addition to the many advantages it offers, it also allows for significantly greater flexibility in programming the embossing, contours, and bends of profiles. These capabilities have resulted in modified versions of the well-known and proven C and Σ profiles.
Both the C+ and Σ+ profiles are designed to meet market demands for increasingly lighter and more efficient solutions, while maintaining satisfactory architectural parameters such as load-bearing capacity, shear resistance, and transverse stiffness.
Z, C, Σ, and U construction profiles are used in various industries and construction applications. These are versatile construction profiles with a range of strength characteristics, allowing them to be optimally adapted to various applications, particularly as:
Cold-formed sections are therefore widely used in the construction of large-scale structures, such as production and industrial facilities, warehouse spaces, and commercial, office, warehouse, and agricultural buildings.
Cold formed Z, C and ? profiles (as well as modified versions, C+ and Σ+) are considered modern building components that enable the rapid assembly of wall studs and roof purlins, as well as structures for photovoltaic panels or industrial machinery, thereby facilitating many construction and structural tasks. They are characterized by:
In practice, cold-formed sections are products that allow for the construction of roof and structural systems with minimal effort and in a short amount of time, and they prove to be extremely useful not only in large-scale structures. Furthermore, the benefits of using cold-formed sections extend to many areas beyond construction and engineering, such as more efficient logistics and the ability to fully recycle the products.
The products offered by the Blachy Pruszyński Company are manufactured from steel strip (S350GD, and S390GD upon request) zinc-magnesium-coated (ZM-120) in thicknesses ranging from 1.50 to 3.50 mm, in various thicknesses and sizes. Z, C, Σ, and U construction profiles are primarily characterized by:
To ensure quick and efficient assembly, we offer our customers a system of holes with diameters ranging from Ø 10 mm to as large as Ø 22 mm, as well as bean-shaped cutouts ranging from 14 mm × 18 mm to 19 mm × 25 mm. These are cut with laser precision, thanks to advanced sensors. Below is a complete table of perforation options:
| Round holes | Oblong holes |
|---|---|
| (diameter – Ø in mm) | (length x width – in mm) |
| Ø 10 | 14 x 18 |
| Ø 12 | 14 x 25 |
| Ø 14 | 19 x 25 |
| Ø 16 | |
| Ø 18 | |
| Ø 22 |
Currently, the Blachy Pruszyński Company, a manufacturer of steel profiles, offers the following construction profiles:
Profiles from:
U-profiles:
C Profiles:
C+ Profiles:
Σ Profiles:
Σ+ Profiles:
The profiles are made of zinc-magnesium-coated steel strip (S350GD; S390GD available upon request) with a thickness ranging from 1.50 to 3.50 mm.
Depending on the application and requirements, the profiles do not require additional protection, although they can be powder-coated.
If you are planning a project that requires top-quality, high-strength products, we encourage you to explore the range of construction profiles offered by BLACHY PRUSZYŃKI. Our products combine high-quality components—resulting from rigorous quality standards—with innovative technological solutions that guarantee the safety and durability of your building for many years to come.
The key criteria for selecting construction profiles should be their intended use and the conditions under which they will be used. To make the right choice, we recommend using the profile selection tool or consulting with the Blachy Pruszyński Company’s technical department via the contact form.
Our product line includes other items that can be used as complementary products for wall or roof installations made of construction profiles.
To order construction profiles, we encourage you to place an order at your nearest Blachy Pruszyński Company branch or through the contact form on our website.
Our product lineup is rounded out by other construction products available in our catalog. This includes a full range of products used in commercial construction.
