F.3.4 Steel Tubing and Material

F.3.4 Steel Tubing and Material

F.3.4.1 Minimum Requirements for Steel Tubing
A tube must meet all four minimum requirements for each Size specified:

F.3.4.2  

Properties for ANY steel material for calculations submitted in an SES must be:
a. Non Welded Properties for continuous material calculations:
Young’s Modulus (E) = 200 GPa (29,000 ksi) Yield Strength (Sy) = 305 MPa (44.2 ksi) Ultimate Strength (Su) = 365 MPa (52.9 ksi)

  b. Welded Properties for discontinuous material such as joint calculations: Yield Strength (Sy) = 180 MPa (26 ksi)
          Ultimate Strength (Su) = 300 MPa (43.5 ksi)

F.3.4.3  

Where welded tubing reinforcements are required (such as inserts for bolt holes or material to support suspension cutouts), the       tubing must retain the Non Welded Properties while using the Welded Properties for the additional reinforcement material.

Explanation