33.7 x 2.6 CHS

Circular Hollow Section · AS/NZS 1163 · Australia / New Zealand

33.7 x 2.6 CHS is a circular hollow section 33.7 mm in outside diameter with a 2.6 mm wall, weighing 2.0 kg/m. The dimensions below are the published AS/NZS 1163 values; the drawing is generated from them.

Circular Hollow Sections are cold-formed tubes to AS/NZS 1163 — efficient in compression and torsion, with identical stiffness about every axis.

33.7 x 2.6 CHS drawn to scale. Save as SVG DXF

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Published dimensions

Property	Metric	Imperial
Outside diameter, d	33.7 mm	1.33 in
Wall thickness, t	2.6 mm	0.102 in
Mass per metre	2.0 kg/m	1.3 lb/ft
Area, A	254 mm²	0.39 in²
Second moment, Ix	30,927 mm⁴	0.1 in⁴
Second moment, Iy	30,927 mm⁴	0.1 in⁴

Derived section properties

Integrated analytically from the exact circular tube. For 33.7 x 2.6 CHS the computed area agrees with the published value to 0.01% and I_x to better than 0.01%. Where a value is also published, the published one above is the one to quote.

Property	Value
Elastic modulus, Z_x	1,835 mm³
Elastic modulus, Z_y	1,835 mm³
Plastic modulus, S_x	2,521 mm³
Plastic modulus, S_y	2,521 mm³
Radius of gyration, rx	11.0 mm
Radius of gyration, ry	11.0 mm

Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed.

Neighbouring sizes

Lighter42.4 x 2.0 CHS2.0 kg/m Heavier42.4 x 2.6 CHS2.6 kg/m

Where these numbers come from

Published AS/NZS 1163 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API