H-Beam Types Overview: Differences in Hot Rolled vs Welded Processes

The classification of H-beam steel types is primarily based on several key dimensions:

I. Flange Width

• Wide Flange H-Beam: With wider flanges, it is mainly used in structures that bear significant bending moments and shearing forces, such as large bridges and high-rise buildings. These H-beams are typically designated with a "W" prefix followed by numbers indicating the height or other relevant dimensions, e.g., W6x9, W6x12, etc.
• Medium Flange H-Beam: With moderately wide flanges, it is suitable for general construction and machinery manufacturing. In some standards, such as German standards, medium flange H-beams are denoted by "HM," with models like HM240x175.
• Narrow Flange H-Beam: With narrower flanges, it is used in applications requiring specific section dimensions, such as ships and vehicles. In European standards, hot-rolled narrow flange H-beams are denoted by "HEB," while in American standards, they may start with "HN" or "HP."

H Beam Size.pdf

II. Material

Carbon Structural Steel H-Beam: Primarily composed of carbon, it offers high strength and ductility, suitable for general construction and machinery manufacturing.

Low-Alloy High-Strength Structural Steel H-Beam: Enhanced with small amounts of alloy elements like chromium, nickel, and molybdenum, it provides improved strength and ductility for structures under heavy loads.

Weathering Steel H-Beam: With excellent weather resistance, it maintains stable performance in harsh environments, ideal for outdoor structures and bridges.

III. Application

General-Purpose H-Beam: Suitable for most conventional construction and industrial applications.

Special-Purpose High-Quality H-Beam: Designed with specific technical requirements and applications, such as for bridges, railway vehicles, and boilers.

IV. Production Process

1. Hot-Rolled H-Beam: Produced through hot-rolling, it exhibits superior mechanical properties and dimensional accuracy.
2. Welded H-Beam: Fabricated by welding steel plates or strips into an H-shape, suitable for special shapes and dimensions.

V. Other Classification Methods

In addition to the above, H-beam types can also be classified based on section size, section shape, quality grade, and other dimensions. For instance, British standards offer a comprehensive range of H-beams, including light, medium, and heavy types, with multiple series and specifications under each category.

In summary, the classification of H-beam steel types is a multidimensional process requiring comprehensive consideration of specific engineering requirements, structural characteristics, material requirements, and production processes. When selecting H-beams, it is crucial to choose the appropriate type and material based on the construction project and application field to ensure stability and durability.

Shandong Heyixin Metal Material Co., Ltd can process and produce the above H-shaped steel models. Please feel free to consult and place orders!