Round Structural Tubing

Industrial Tube & Steel Corporation stocks carbon steel round tubing in A513 (mechanical) and A500 (structural) grades, in a range of sizes and wall thicknesses. A500 structural carbon round tube is used in construction, buildings, towers, and sign support applications, but also in trailers and structural fabrications. A513 mechanical carbon steel round tube is frequently used in the transportation, solar, appliance, and agriculture industries, as well as in many other types of machinery ranging from bases to supports.  All ODs below 2" with wall thickness less than .120 inch are typically manufactured as ASTM A-513. Sizes 2" and above with wall thickness of .120 inch and heavier are typically manufactured to ASTM A-500. 

Made from 1026 Steel
Meets ASTM A500 or ASTM A513
A500 Round Tubing Tolerances



Round tubing, as opposed to rectangular tubing, has a single continuous surface with no edges. When under stress, pressure is distributed equally. This decreases the possibility of unwelcome bends, breaks, and crimping.


Round Structural Steel Tubing can be made thinner and transport higher volumes than other materials of the same size due to its strength. As a result, it is a less expensive material than other tubing possibilities. It can be bent, cut, and machined to suit a wide range of uses.


Round Structural Steel Tubing is extremely long-lasting. It can tolerate harsh environments. Steel, as a complex metal composed of iron and carbon, is extremely resistant to most elements, making it perfect for a wide range of industries 

Ease of Fabrication

Round structural steel tubing can be cut, welded, bent, drilled, and molded into a wide range of shapes, allowing it to be smoothly integrated into complex structures. Fabrication efficiency saves time and money throughout the construction or manufacturing process.


Steel is completely recyclable, which means it can be recycled into the same material of the same grade over and over. Allowing for an environmentally sustainable strategy.

A500 Round Tolerances

Physical Requirements ASTM A500 Round
Grade B Grade C
Tensile Strength (min. psi) 58,000 62,000
Yield Strength (min. psi) 42,000 46,000
Elongation in 2 in. (min. %) 23* 21**
*For 0.180" wall and over
**For 0.120" wall and over
Straightness Tolerance
0.025" per foot max
Outside Dimension Tolerance
O.D. < 1.900" ±0.5% of nominal O.D.
O.D. < 1.900" ±0.75% of nominal O.D.
Wall Thickness Tolerance
±10% of the specified Nominal Wall Thickness
Customized Cut Lengths Available. Please Specify Cut Length During Quote Process.

Round Structural Steel Tubing

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