Cross-section profile. Bending is about the horizontal centroidal axis.
Horizontal width of the rectangular section.
Vertical depth (in the plane of bending) — depth helps most, I grows with h³.
Diameter of the solid round bar.
Tube / pipe outside diameter.
Wall thickness. ID = OD − 2t.
Outside width of the rectangular (box) tube.
Outside height (in the plane of bending).
Wall thickness. Inner = outer − 2t.
Total height of the section, in the plane of bending.
Width of the top and bottom flanges.
Thickness of each flange.
Thickness of the vertical web.
Total height of the channel, in the plane of bending.
Width of the flanges (the legs of the C).
Thickness of the back web.
Total height: flange plus stem.
Width of the top flange.
Thickness of the flange.
Thickness of the vertical stem.
Length of the vertical leg — the depth in the plane of bending.
Length of the horizontal leg.
Leg thickness (equal-thickness legs).
About the horizontal centroidal (neutral) axis.
Also computed
S = I / c, used as σ = M / S.
Centroid to the extreme fibre.
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