RHS 177.8x127x9.53 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 177.8x127x9.53 steel profile weighs 40.9 kg/m (27.50 lb/ft), has a depth of 177.8 mm (7.00 in), flange width 127 mm (5.00 in). Cross-sectional area: 5,212.32 mm². Moment of inertia Ix = 2,173.37 cm⁴, Iy = 1,282.538 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)	9.5 mm	0.38 in
Fillet radius (r)	19.1 mm	0.75 in
Weight	40.9 kg/m	27.50 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	5,212.32 mm²	8.079 in²
Moment of inertia (Ix)	2,173.37 cm⁴	52.22 in⁴
Moment of inertia (Iy)	1,282.54 cm⁴	30.81 in⁴
Elastic section modulus (Sx)	244.47 cm³	14.919 in³
Elastic section modulus (Sy)	201.97 cm³	12.325 in³
Plastic section modulus (Zx)	303.36 cm³	18.512 in³
Plastic section modulus (Zy)	240.13 cm³	14.654 in³
Radius of gyration (rx)	6.46 cm	2.542 in
Radius of gyration (ry)	4.96 cm	1.953 in