UB (BS 4-1)

UB 762×267×197 (BS 4-1:2005)

Source: SCI Blue Book (BS EN 10365:2017). Verified fields: A, G, It, Iw, Iy, Iz, Wply, Wplz, Wy, Wz, b, h, iy, iz, r, tf, tw. Other fields remain unverified unless identified as calculated.

h = 769.8 mm · b = 268 mm · tw = 15.6 mm · tf = 25.4 mm · G = 196.8 kg/m

BS 4-1:2005 I/H section
Cross-Section Profile — UB 762×267×197 (to scale)

All dimensions in mm · I/H section · G = 196.8 kg/m · BS 4-1:2005

196.8
kg / m
251
A (cm²)
240000
Iy (cm⁴)
6230
Wy (cm³)

Reference values — verify against the current edition of the applicable standard or manufacturer's table before design use.

Section Properties

Overall depth h 769.8 mm
Width b 268 mm
Web thickness tw 15.6 mm
Flange thickness tf 25.4 mm
Root radius r 16.5 mm
Area A 251 cm²
Mass per length G 196.8 kg/m
Second moment (y-y) Iy 240000 cm⁴
Elastic modulus (y-y) Wy 6230 cm³
Plastic modulus (y-y) Wpl,y 7170 cm³
Radius (y-y) iy 30.9 cm
Second moment (z-z) Iz 8170 cm⁴
Elastic modulus (z-z) Wz 610 cm³
Plastic modulus (z-z) Wpl,z 958 cm³
Radius (z-z) iz 5.71 cm
Torsion constant It 404 cm⁴
Warping constant Iw 11300000 cm⁶

Using this section record

Read the axis labels before using inertia or modulus: the major and minor axes are not interchangeable. Dimensions are in millimetres; area is in cm², second moments in cm⁴, moduli in cm³ and radii in cm. Convert powers of length consistently when transferring values to a calculation.

A Source line covers only its listed verified fields. Other fields remain subject to verification. A dash is unavailable, never zero. Withheld values must not be inferred from the remaining dimensions. Nominal mass and dimensions are reference values rather than measured tolerances or procurement guarantees. Confirm the exact product, manufacturing route, grade and thickness with the manufacturer. Section properties alone do not establish member resistance: stability, effective length, connections and project design requirements need separate assessment.