I 838x304.8x9.5x12.7 AHMSA · Weight & Dimensions

AHMSA, welded sections · Wide Flange (I-beam)

Wide flange beams (W shapes / I-beams) are the most common structural steel profile used in building construction. They are used for beams, columns, and girders in steel-framed buildings and bridges. Designed per AISC 360, Eurocode 3, and NBR 8800.

Also known as: I 838x304.8x9.5x12.7 (México) · Doble T I 838x304.8x9.5x12.7 (Argentina / LATAM) · UB 838 (UK / Australia)

The I 838x304.8x9.5x12.7 steel profile weighs 121.4 kg/m (81.57 lb/ft), has a depth of 838 mm (32.99 in), flange width 304.8 mm (12.00 in). Cross-sectional area: 15,461.62 mm². Moment of inertia Ix = 174,318.693 cm⁴, Iy = 5,999.538 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	838 mm	32.99 in
Width (b)	304.8 mm	12.00 in
Web thickness (tw)	9.5 mm	0.37 in
Flange thickness (tf)	12.7 mm	0.50 in
Weight	121.4 kg/m	81.57 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	15,461.62 mm²	23.966 in²
Moment of inertia (Ix)	174,318.69 cm⁴	4188.01 in⁴
Moment of inertia (Iy)	5,999.54 cm⁴	144.14 in⁴
Elastic section modulus (Sx)	4,160.35 cm³	253.881 in³
Elastic section modulus (Sy)	393.67 cm³	24.023 in³
Plastic section modulus (Zx)	4,762.96 cm³	290.655 in³
Plastic section modulus (Zy)	608.27 cm³	37.119 in³
Radius of gyration (rx)	33.58 cm	13.219 in
Radius of gyration (ry)	6.23 cm	2.452 in