STRUCTURAL STEEL SHAPES BASICS AND TUTORIALS

DIFFERENT STEEL SHAPES BASIC INFORMATION
What Are the Different Steel Structural Shapes?


Steel mills have a standard classification for the many products they make, one of which is structural shapes (heavy). By definition this classification takes in all shapes having at least one cross-sectional dimension of 3 in or more. Shapes of lesser size are classified as structural shapes (light) or, more specifically, bars.

Shapes are identified by their cross-sectional characteristics—angles, channels, beams, columns, tees, pipe, tubing, and piles. For convenience, structural shapes are simply identified by letter symbols as indicated in Table 7.3.
The industry recommended standard (adopted 1970) for indicating a specific size of beam or column-type shape on designs, purchase orders, shop drawings, etc., specifies listing of symbol, depth, and weight, in that order.

For example, W14 30 identifies a wide-flange shape with nominal depth of 14 in and weight of 30 lb / lin ft. The , read as ‘‘by,’’ is merely a separation.

Each shape has its particular functional use, but the workhorse of building construction is the wide-flange W section. For all practical purposes, W shapes have parallel flange surfaces.

The profile of a W shape of a given nominal depth and weight available from different producers is essentially the same, except for the size of fillets between web and flanges.


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