S355JR H - shaped steel is available in a wide array of sizes to suit diverse engineering requirements. In terms of height, the range typically extends from approximately 100 mm to over 1000 mm. For example, the HEA 100 model has a height of 96 mm, while the HEA 1000 reaches 990 mm. Flange widths can vary from around 50 mm to 400 mm. Web and flange thicknesses usually fall within the range of a few millimeters up to about 30 mm.
These size variations offer flexibility in design. Smaller - sized S355JR H - shaped steel is often utilized in light - duty or secondary structural applications, such as interior framing in commercial buildings or supports for non - load - bearing elements. Larger sizes, with greater dimensions, are designed for heavy - duty applications. They are ideal for the main structural frames of high - rise buildings, large - span bridges, and heavy industrial facilities, where they need to bear substantial vertical and horizontal loads. The standardized size series allows engineers to precisely select the appropriate section based on load - bearing calculations and spatial constraints of a project.