HEB steel follows a standardized size series defined by European norms, with sizes ranging from HEB 100 to HEB 1000, where the number indicates the approximate height in millimeters. For example, HEB 100 has a height of 100mm, a flange width of 100mm, a web thickness of 6mm, and a flange thickness of 10mm. As the model number increases, the dimensions proportionally expand; HEB 300 has a height of 300mm, a flange width of 300mm, a web thickness of 9.5mm, and a flange thickness of 16mm.
These standard sizes are applied based on load - bearing requirements. Smaller sizes like HEB 100 - HEB 200 are commonly used for interior building structures, such as secondary beams and partitions, where the load is relatively light. Larger sizes, such as HEB 500 - HEB 1000, are suitable for heavy - duty applications, including the main frames of high - rise buildings, large - span bridges, and industrial plants. The standardization ensures easy interchangeability and compatibility among different components in construction projects.
