RHS 320x200x6 SAISC · Weight & Dimensions

SAISC, 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 320x200 cal 4 (México) · Caño estructural 320x200 (Argentina)

The RHS 320x200x6 steel profile weighs 47.1 kg/m (31.66 lb/ft), has a depth of 320 mm (12.60 in), flange width 200 mm (7.87 in). Cross-sectional area: 6,003.292 mm². Moment of inertia Ix = 8,604.322 cm⁴, Iy = 4,188.076 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 6 mm ≈ 4 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	320 mm	12.60 in
Width (b)	200 mm	7.87 in
Thickness (t)	6 mm	0.24 in
Fillet radius (r)	12 mm	0.47 in
Weight	47.1 kg/m	31.66 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,003.29 mm²	9.305 in²
Moment of inertia (Ix)	8,604.32 cm⁴	206.72 in⁴
Moment of inertia (Iy)	4,188.08 cm⁴	100.62 in⁴
Elastic section modulus (Sx)	537.77 cm³	32.817 in³
Elastic section modulus (Sy)	418.81 cm³	25.557 in³
Plastic section modulus (Zx)	646.66 cm³	39.462 in³
Plastic section modulus (Zy)	469.35 cm³	28.641 in³
Radius of gyration (rx)	11.97 cm	4.713 in
Radius of gyration (ry)	8.35 cm	3.288 in