ISLB – light beams

ISLB 150

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 = 80d = 150tf = 6.8tf = 6.8tw = 4.8tw = 4.8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
150mm
Flange widthbf
80mm
Web thicknesstw
4.8mm
Flange thicknesstf
6.8mm
Root radiusr1
9.5mm
Toe radiusr2
3mm

Mass and area

Mass per lengthm
14.07kg/m
Cross-sectional areaA
1,793mm²
Published area (standard)A pub.
1,800mm²
Outside perimeterP
575.4mm

Strong axis x–x

Moment of inertiaIx
6.77210⁶ mm⁴
Elastic section modulusSx
90.310³ mm³
Plastic section modulusZx
103.210³ mm³
Radius of gyrationrx
61.46mm

Weak axis y–y

Moment of inertiaIy
0.468510⁶ mm⁴
Elastic section modulusSy
11.7110³ mm³
Plastic section modulusZy
20.0710³ mm³
Radius of gyrationry
16.17mm

Equivalents in other standards