HSS Rectangle Shape Tables

The follow details are used for HSS rectangle shapes in standard database tables.

Note: The required first two columns for all standard databases are RecNo and Name.

Table 1. HSS rectangle shape default properties
Name	Description	Unit	Column No.
D	Depth	in	3
B	Width of flanges	in	4
T	Thickness of flanges	in	5
AX	Cross sectional area	in^2	6
IZ	Moment of inertia about 3-3 axis	in^4	7
IY	Moment of inertia about 2-2 axis	in^4	8
IX	Torsional moment of inertia	in^4	9
ZZ	Plastic modulus about 3-3 axis	in^3	10
ZY	Plastic modulus about 2-2 axis	in^3	11
C	Torsional constant	in^3	12

Calculated Properties

The following section properties are calculated as indicated when they are not present for the profile.

Property: Formula
AX: $= D \times B - (B - 2 T) (D - 2 T)$
AY: $= 2 D \times T$
AZ: $= \frac{4}{3} B \times T$ when D ≠ B (rectangular HSS)
$= 2 B \times T$ when D = B (square HSS)
IX: $= \frac{2 T^{2} {(B - T)}^{2} {(D - T)}^{2}}{B \times T + D \times T - 2 T^{2}}$
IY: $= \frac{D B^{3}}{12} - \frac{(D - 2 T) {(B - 2 T)}^{3}}{12}$
IZ: $= \frac{B D^{3}}{12} - \frac{(B - 2 T) {(D - 2 T)}^{3}}{12}$
SY: $= \frac{2 \times IY}{B}$
SZ: $= \frac{2 \times IZ}{D}$
PY: $= D \times T (B - T) + 2 T {(\frac{1}{2} B - T)}^{2}$
PZ: $= B \times T (D - T) + 2 T {(\frac{1}{2} D - T)}^{2}$