RHS 180x100x7 GOST · Weight & Dimensions

GOST, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 180x100 (México) · Caño estructural 180x100 (Argentina)

The RHS 180x100x7 steel profile weighs 28.2 kg/m (18.98 lb/ft), has a depth of 180 mm (7.09 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,597.814 mm². Moment of inertia Ix = 1,482.566 cm⁴, Iy = 590.271 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	180 mm	7.09 in
Width (b)	100 mm	3.94 in
Thickness (t)	7 mm	0.28 in
Fillet radius (r)	14 mm	0.55 in
Weight	28.2 kg/m	18.98 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,597.81 mm²	5.577 in²
Moment of inertia (Ix)	1,482.57 cm⁴	35.62 in⁴
Moment of inertia (Iy)	590.27 cm⁴	14.18 in⁴
Elastic section modulus (Sx)	164.73 cm³	10.052 in³
Elastic section modulus (Sy)	118.05 cm³	7.204 in³
Plastic section modulus (Zx)	206.36 cm³	12.593 in³
Plastic section modulus (Zy)	136.92 cm³	8.356 in³
Radius of gyration (rx)	6.42 cm	2.527 in
Radius of gyration (ry)	4.05 cm	1.595 in