Abstract: A support may include a hollow metallic tube extending over an axis and may include two opposing ends. The tube may include a plurality of sections disposed along the axis. A first section may be disposed at an end of the tube and include a first inner diameter, a first outer diameter, and a first wall thickness. A second section may be separated from the first section via a first transition zone. The second section may include a second inner diameter, a second outer diameter, and a second wall thickness. A third section may be disposed remote from the first section and be separated from the second section via a second transition zone. The third section may have a third inner diameter, a third outer diameter, and a third wall thickness. The wall thickness, inner diameter and outer diameter may vary along the tube between the plurality of sections.

Abstract: A support may include a hollow metallic tube having two opposing ends and a body extending over a longitudinal axis of the tube. The tube may have a steel composition that may include, by weight, the following concentrations: approximately 0.19 to 0.27% carbon; approximately 0.0005% to 0.004% boron; approximately 1.5% to 2.5% manganese; and less than or equal to approximately 0.35% chromium, the balance including iron and inevitable impurities.

Abstract: A support may include a hollow metallic tube having two opposing ends and a body extending over a longitudinal axis of the tube. The tube may have a steel composition that may include, by weight, the following concentrations: approximately 0.19 to 0.27% carbon; approximately 0.0005% to 0.004% boron; approximately 1.5% to 2.5% manganese; and less than or equal to approximately 0.35% chromium, the balance including iron and inevitable impurities.

Abstract: A support may include a hollow metallic tube extending over an axis and may include two opposing ends. The tube may include a plurality of sections disposed along the axis. A first section may be disposed at an end of the tube and include a first inner diameter, a first outer diameter, and a first wall thickness. A second section may be separated from the first section via a first transition zone. The second section may include a second inner diameter, a second outer diameter, and a second wall thickness. A third section may be disposed remote from the first section and be separated from the second section via a second transition zone. The third section may have a third inner diameter, a third outer diameter, and a third wall thickness. The wall thickness, inner diameter and outer diameter may vary along the tube between the plurality of sections.