RHS 177.8x127x7.95 CISC · Weight & Dimensions

CISC, 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 177.8x127 (México) · Caño estructural 177.8x127 (Argentina)

The RHS 177.8x127x7.95 steel profile weighs 34.8 kg/m (23.37 lb/ft), has a depth of 177.8 mm (7.00 in), flange width 127 mm (5.00 in). Cross-sectional area: 4,430.75 mm². Moment of inertia Ix = 1,895.467 cm⁴, Iy = 1,122.384 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	177.8 mm	7.00 in
Width (b)	127 mm	5.00 in
Thickness (t)	8.0 mm	0.31 in
Fillet radius (r)	15.9 mm	0.63 in
Weight	34.8 kg/m	23.37 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,430.75 mm²	6.868 in²
Moment of inertia (Ix)	1,895.47 cm⁴	45.54 in⁴
Moment of inertia (Iy)	1,122.38 cm⁴	26.97 in⁴
Elastic section modulus (Sx)	213.21 cm³	13.011 in³
Elastic section modulus (Sy)	176.75 cm³	10.786 in³
Plastic section modulus (Zx)	261.45 cm³	15.955 in³
Plastic section modulus (Zy)	207.25 cm³	12.647 in³
Radius of gyration (rx)	6.54 cm	2.575 in
Radius of gyration (ry)	5.03 cm	1.982 in