Cross-Section Properties

Welcome to the staticstools.eu sites, which provide you technical data about most common structural shapes. This information can be useful for designing and drawing steel structures.

Select the desired shape of the profile from the top menu and then you can select a specific size of cross-section from drop down menu.

In well arranged table You will see the following information:

• Designation of cross-section
• Picture of steel shape with label of dimensions. There are:
  • h: depth of section,
  • b: width of section,
  • t_f: flange thickness,
  • t_w: web thickness,
  • r: radius of root fillet, or toe radius,
  • d: depth of straight portion of web,
  • y_s: distance of centre of gravity,
  • y_m: distance of shear centre,
  • α: inclination of main axes of inertia,
• Main section properties:
  • A: area of section,
  • G: mass per unit length,
  • A_L: painting surface per unit length,
• Following sectional characteristics are given for designers and structural engineers:
  • I: second moment of area,
  • W_el: elastic section modulus,,
  • W_pl: plastic section modulus,,
  • i: radius of gyration ,
  • S: statical moment of area about neutral axis,
  • i_pc: polar radius of gyration,
  • I_w: warping constant,
  • i_w: ???radius of warping constant??? please send me an e-mail with correct term
  • I_t: torsion constant,
  • C_t: torsional modulus constant (hollow section),
  • i_pa: radius of gyration about shear center
  • I_yz: centrifugal moment,