ISWB – wide-flange beams

ISWB 450

Standard: IS 808:2021Source: IS 808:2021 dimensions (BIS) — calculated properties, flange slope 98° (8°)
Tapered-flange sections; flange thickness measured at the quarter of the flange.
xybf = 200d = 450tf = 15.4tf = 15.4tw = 9.2tw = 9.2
Cross-section, to scaledimensions in mm

Dimensions

Depthd
450mm
Flange widthbf
200mm
Web thicknesstw
9.2mm
Flange thicknesstf
15.4mm
Root radiusr1
15mm
Toe radiusr2
7mm

Mass and area

Mass per lengthm
79.48kg/m
Cross-sectional areaA
10,125mm²
Published area (standard)A pub.
10,100mm²
Outside perimeterP
1,605mm

Strong axis x–x

Moment of inertiaIx
350.410⁶ mm⁴
Elastic section modulusSx
1,55710³ mm³
Plastic section modulusZx
1,76110³ mm³
Radius of gyrationrx
186mm

Weak axis y–y

Moment of inertiaIy
16.0210⁶ mm⁴
Elastic section modulusSy
160.210³ mm³
Plastic section modulusZy
274.310³ mm³
Radius of gyrationry
39.78mm

Equivalents in other standards