U 400x100x6 Cintac · Weight & Dimensions

Cintac, cold-formed sections · Cold-formed Channel

Cold-formed channels (U shapes) are similar to C shapes but without stiffening lips. Used for light structural framing, supports, and secondary members.

Also known as: U 400x100x6 (UK / Australia)

The U 400x100x6 steel profile weighs 27.3 kg/m (18.37 lb/ft), has a depth of 400 mm (15.75 in), flange width 100 mm (3.94 in). Cross-sectional area: 3,481.578 mm². Moment of inertia Ix = 7,392.961 cm⁴, Iy = 274.001 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	400 mm	15.75 in
Width (b)	100 mm	3.94 in
Thickness (t)	6 mm	0.24 in
Fillet radius (r)	6 mm	0.24 in
Weight	27.3 kg/m	18.37 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,481.58 mm²	5.396 in²
Moment of inertia (Ix)	7,392.96 cm⁴	177.62 in⁴
Moment of inertia (Iy)	274 cm⁴	6.58 in⁴
Elastic section modulus (Sx)	369.65 cm³	22.557 in³
Elastic section modulus (Sy)	33.93 cm³	2.070 in³
Plastic section modulus (Zx)	462.16 cm³	28.203 in³
Plastic section modulus (Zy)	44.34 cm³	2.706 in³
Radius of gyration (rx)	14.57 cm	5.737 in
Radius of gyration (ry)	2.81 cm	1.104 in