RHS 178x127x12.7 IMCA · Weight & Dimensions

IMCA, 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 178x127 (México) · Caño estructural 178x127 (Argentina)

The RHS 178x127x12.7 steel profile weighs 52.7 kg/m (35.39 lb/ft), has a depth of 178 mm (7.01 in), flange width 127 mm (5.00 in). Cross-sectional area: 6,686.482 mm². Moment of inertia Ix = 2,649.073 cm⁴, Iy = 1,550.231 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	178 mm	7.01 in
Width (b)	127 mm	5.00 in
Thickness (t)	12.7 mm	0.50 in
Fillet radius (r)	25.4 mm	1.00 in
Weight	52.7 kg/m	35.39 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,686.48 mm²	10.364 in²
Moment of inertia (Ix)	2,649.07 cm⁴	63.64 in⁴
Moment of inertia (Iy)	1,550.23 cm⁴	37.24 in⁴
Elastic section modulus (Sx)	297.65 cm³	18.164 in³
Elastic section modulus (Sy)	244.13 cm³	14.898 in³
Plastic section modulus (Zx)	378.51 cm³	23.098 in³
Plastic section modulus (Zy)	298.55 cm³	18.219 in³
Radius of gyration (rx)	6.29 cm	2.478 in
Radius of gyration (ry)	4.82 cm	1.896 in