US Metric Steel Section Properties

This data is derived from AISC version 15.0 and Steel Tube Institute spreadsheets, which are available on line. In accordance with the license for these spreadsheets, you are prohibited from disseminating this data. Properties for HSS sections are based on full wall thickness per ASTM A1085 or CSA G40.21, not ASTM A500.

Symbol	Definition
Dsg	Canadian designation
Dsg AISC	US designation
W	Nominal weight
A	Cross-sectional area
d	Overall depth of member
OD	Outside diameter of round HSS or pipe
b	Overall width of member
w	Web thickness
t	Flange thickness
t	Thickness of angle leg
t	HSS and pipe wall thickness
k	Distance from outer face of flange to web toe of fillet
k1	Distance from center of web to flange toe of fillet
x	Horizontal distance to member centroidal axis
y	Vertical distance to member centroidal axis
eo	Horizontal distance to member shear center
xp	Horizontal distance to member plastic neutral axis
yp	Vertical distance to member plastic neutral axis
Ix	Moment of inertia about the x-axis
Zx	Plastic section modulus about the x-axis
Sx	Elastic section modulus about the x-axis
rx	Radius of gyration about the x-axis
Iy	Moment of inertia about the y-axis
Zy	Plastic section modulus about the y-axis
Sy	Elastic section modulus about the y-axis
ry	Radius of gyration about the y-axis
Iz	Moment of inertia about the z-axis
rz	Radius of gyration about the z-axis
Sz	Elastic section modulus about the z-axis
J	Torsional moment of inertia
Cw	Warping constant
C	HSS torsional constant
Zy	Plastic modulus about axis YY, mm^3

Although no effort has been spared in an attempt to ensure that numerical values are accurate to a degree consistent with current structural design practice, the author and owner of this site do not assume responsibility for errors or oversights resulting from use of the information contained herein. Anyone making use of this site assumes all liability arising from such uses.

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