HSS - CSA G40 Round (HS) - HS64x6.4

Round Hollow Structural Sections to CSA G40.21 are the Canadian-grade circular HSS family, used throughout Canada for columns, bracing, handrails, and any structure where equal strength in all directions and a clean circular profile are wanted. Their closed shape gives efficient resistance to buckling for a given weight of steel, and the round profile is a common architectural choice for exposed steelwork. The full CSA G40 round range is available here as free CAD blocks, with outside diameter and wall thickness data from CISC 12.

HS64x6.4
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Dimensions

PropertyValue
Ds_iHS2.5x0.250
D63.5
T6.35
Tdes6.35
Mass8.95
Wt_i6.01
A_Th1140

Full sortable table: Dimensions table for this category

Section Properties

PropertyValue
Ds_iHS2.5x0.250
Mass8.95
Wt_i6.01
Prp*
Avl
Shp11
Use2
B
BT
DT10
Dn_m64
A_Th1140
Ix0.471
Sx14.8
Rx20.3
Zx20.8
Iy0.471
Sy14.8
Ry20.3
Zy20.8
J942
Crt575
C29.7
SA0.199
Dn_i2.5

Full sortable table: Properties table for this category