ISLB – light beams

ISLB(P) 200

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 = 100d = 200tf = 8tf = 8tw = 5.6tw = 5.6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
200mm
Flange widthbf
100mm
Web thicknesstw
5.6mm
Flange thicknesstf
8mm
Root radiusr1
9.5mm
Toe radiusr2
3mm

Mass and area

Mass per lengthm
21.04kg/m
Cross-sectional areaA
2,680mm²
Published area (standard)A pub.
2,680mm²
Outside perimeterP
748.8mm

Strong axis x–x

Moment of inertiaIx
17.9710⁶ mm⁴
Elastic section modulusSx
179.710³ mm³
Plastic section modulusZx
20510³ mm³
Radius of gyrationrx
81.88mm

Weak axis y–y

Moment of inertiaIy
1.06410⁶ mm⁴
Elastic section modulusSy
21.2810³ mm³
Plastic section modulusZy
36.510³ mm³
Radius of gyrationry
19.92mm

Equivalents in other standards