STRUCTURAL TUBING—CARBON STEEL SELECTION GUIDE

Structural tubing is relatively
low in cost, has a high strength-to-weight ratio and is easily welded formed,
punched and drilled.  Its hollow shape protects and conceals wires, pipes,
moving parts, etc.; and it can be left exposed.

HOLLOW STRUCTURAL

hot formed, conforming to ASTM A501 (Latest)—or cold formed,
conforming to ASTM 500, Grade B (Latest).  This tubing can be subjected to
most of the unusual fabricating operations.  Ductility is good.  Bends
well, flattens, cuts, punches, flares, flanges and welds easily.

TYPICAL MECHANICAL PROPERTIES

LIGHT STRUCTURAL
TUBING

Electric resistance welded, and is made from low carbon 1020
strip.  The homogeneous weld is as strong as the parent metal.
Outside welding flash is removed on all sizes.  Inside welding flash is
removed on all sizes.  Inside welding flash is controlled on all sizes
under 2”.  This economical tubing is readily formed, bent or swaged.
It is excellent for applications where outside finish is important—for example
when surface suitable for high gloss painting is needed.

TYPICAL MECHANICAL PROPERTIES

HOT ROLLED BUTT
WELDED

Made from low carbon, butt welded steel pipe, and has the outside
welding flash removed.  One of the lowest cost square or rectangular tubes,
it is suitable for a wide variety of applications where surface finish is not of
primary importance.  For example, it is gaining increased acceptance as a
light structural member in heavy equipment, farm machinery, etc.

TYPICAL MECHANICAL PROPERTIES

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