HSS - CSA G40 Round (HS)
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.
Designation
Section
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HS711x25
Imperial: HS28x1.000
HS711x19
Imperial: HS28x0.750
HS711x13
Imperial: HS28x0.500
HS610x25
Imperial: HS24x1.000
HS610x19
Imperial: HS24x0.750
HS610x13
Imperial: HS24x0.500
HS610x9.5
Imperial: HS24x0.375
HS508x25
Imperial: HS20x1.000
HS508x19
Imperial: HS20x0.750
HS508x13
Imperial: HS20x0.500
HS508x9.5
Imperial: HS20x0.375
HS508x6.4
Imperial: HS20x0.250
HS457x25
Imperial: HS18x1.000
HS457x19
Imperial: HS18x0.750
HS457x13
Imperial: HS18x0.500
HS457x9.5
Imperial: HS18x0.375
HS457x6.4
Imperial: HS18x0.250
HS406x25
Imperial: HS16x1.000
HS406x19
Imperial: HS16x0.750
HS406x16
Imperial: HS16x0.625
HS406x13
Imperial: HS16x0.500
HS406x9.5
Imperial: HS16x0.375
HS406x6.4
Imperial: HS16x0.250
HS356x19
Imperial: HS14x0.750
HS356x16
Imperial: HS14x0.625
HS356x13
Imperial: HS14x0.500
HS356x9.5
Imperial: HS14x0.375
HS356x6.4
Imperial: HS14x0.250
HS324x19
Imperial: HS12.75x0.750
HS324x16
Imperial: HS12.75x0.625
HS324x13
Imperial: HS12.75x0.500
HS324x9.5
Imperial: HS12.75x0.375
HS324x6.4
Imperial: HS12.75x0.250
HS273x13
Imperial: HS10.75x0.500
HS273x9.5
Imperial: HS10.75x0.375
HS273x7.9
Imperial: HS10.75x0.313
HS273x6.4
Imperial: HS10.75x0.250
HS273x4.8
Imperial: HS10.75x0.188
HS245x9.5
Imperial: HS9.625x0.375
HS245x6.4
Imperial: HS9.625x0.250
HS219x13
Imperial: HS8.625x0.500
HS219x9.5
Imperial: HS8.625x0.375
HS219x6.4
Imperial: HS8.625x0.250
HS219x4.8
Imperial: HS8.625x0.188
HS178x13
Imperial: HS7x0.500
HS178x9.5
Imperial: HS7x0.375
HS168x13
Imperial: HS6.625x0.500
HS168x9.5
Imperial: HS6.625x0.375
HS168x6.4
Imperial: HS6.625x0.250
HS168x4.8
Imperial: HS6.625x0.188
HS152x7.9
Imperial: HS6x0.313
HS152x6.4
Imperial: HS6x0.250
HS141x13
Imperial: HS5.563x0.500
HS141x9.5
Imperial: HS5.563x0.375
HS141x6.4
Imperial: HS5.563x0.250
HS127x9.5
Imperial: HS5x0.375
HS127x7.9
Imperial: HS5x0.313
HS127x6.4
Imperial: HS5x0.250
HS114x6.4
Imperial: HS4.5x0.250
HS114x4.8
Imperial: HS4.5x0.188
HS102x6.4
Imperial: HS4x0.250
HS102x4.8
Imperial: HS4x0.188
HS89x6.4
Imperial: HS3.5x0.250
HS89x4.8
Imperial: HS3.5x0.188
HS89x3.2
Imperial: HS3.5x0.125
HS76x6.4
Imperial: HS3x0.250
HS76x4.8
Imperial: HS3x0.188
HS76x3.2
Imperial: HS3x0.125
HS73x6.4
Imperial: HS2.875x0.250
HS73x4.8
Imperial: HS2.875x0.188
HS73x3.2
Imperial: HS2.875x0.125
HS64x6.4
Imperial: HS2.5x0.250
HS64x4.8
Imperial: HS2.5x0.188
HS64x3.2
Imperial: HS2.5x0.125
HS60x6.4
Imperial: HS2.375x0.250
HS60x4.8
Imperial: HS2.375x0.188
HS60x3.2
Imperial: HS2.375x0.125
HS48x4.8
Imperial: HS1.9x0.188
HS48x3.2
Imperial: HS1.9x0.125
HS42x3.2
Imperial: HS1.66x0.125
