SS400 shape steel is available in a wide variety of sizes to cater to different engineering needs. For common I - beams and H - beams made of SS400 steel, the height can range from approximately 100 mm to over 600 mm. Smaller - sized sections, like those around 100 - 200 mm in height, are often used for light - to - medium - duty applications. For instance, in small - scale residential or commercial building framing, these smaller dimensions are sufficient to bear relatively lighter loads.
Larger sections, with heights exceeding 400 mm, are designed for heavy - duty applications. The flange widths typically vary from about 50 mm to 300 mm, and the thickness of the web and flanges can range from a few millimeters to around 20 mm. These size variations allow engineers to select the appropriate SS400 shape steel based on the specific load - bearing requirements and spatial constraints of a project, ensuring both structural integrity and cost - effectiveness.