ISWB – wide-flange beams

ISWB 350

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 = 350tf = 11.4tf = 11.4tw = 8tw = 8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
350mm
Flange widthbf
200mm
Web thicknesstw
8mm
Flange thicknesstf
11.4mm
Root radiusr1
12mm
Toe radiusr2
6mm

Mass and area

Mass per lengthm
56.96kg/m
Cross-sectional areaA
7,256mm²
Published area (standard)A pub.
7,240mm²
Outside perimeterP
1,432mm

Strong axis x–x

Moment of inertiaIx
155.710⁶ mm⁴
Elastic section modulusSx
89010³ mm³
Plastic section modulusZx
997.610³ mm³
Radius of gyrationrx
146.5mm

Weak axis y–y

Moment of inertiaIy
12.8210⁶ mm⁴
Elastic section modulusSy
128.210³ mm³
Plastic section modulusZy
210.710³ mm³
Radius of gyrationry
42.03mm

Slenderness ratios

Flange slope used%
6.99

Equivalents in other standards