ISWB – wide-flange beams

ISWB 500

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 = 250d = 500tf = 14.7tf = 14.7tw = 9.9tw = 9.9
Cross-section, to scaledimensions in mm

Dimensions

Depthd
500mm
Flange widthbf
250mm
Web thicknesstw
9.9mm
Flange thicknesstf
14.7mm
Root radiusr1
15mm
Toe radiusr2
7.5mm

Mass and area

Mass per lengthm
95.23kg/m
Cross-sectional areaA
12,132mm²
Published area (standard)A pub.
12,100mm²
Outside perimeterP
1,915mm

Strong axis x–x

Moment of inertiaIx
524.410⁶ mm⁴
Elastic section modulusSx
2,09710³ mm³
Plastic section modulusZx
2,35810³ mm³
Radius of gyrationrx
207.9mm

Weak axis y–y

Moment of inertiaIy
32.4710⁶ mm⁴
Elastic section modulusSy
259.710³ mm³
Plastic section modulusZy
426.910³ mm³
Radius of gyrationry
51.73mm

Slenderness ratios

Flange slope used%
6.99

Equivalents in other standards