ISLB – light beams

ISLB 225

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 = 225tf = 8.6tf = 8.6tw = 5.8tw = 5.8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
225mm
Flange widthbf
100mm
Web thicknesstw
5.8mm
Flange thicknesstf
8.6mm
Root radiusr1
12mm
Toe radiusr2
6mm

Mass and area

Mass per lengthm
23.48kg/m
Cross-sectional areaA
2,992mm²
Published area (standard)A pub.
2,990mm²
Outside perimeterP
791.6mm

Strong axis x–x

Moment of inertiaIx
25.0210⁶ mm⁴
Elastic section modulusSx
222.410³ mm³
Plastic section modulusZx
254.710³ mm³
Radius of gyrationrx
91.44mm

Weak axis y–y

Moment of inertiaIy
1.12810⁶ mm⁴
Elastic section modulusSy
22.5510³ mm³
Plastic section modulusZy
39.2310³ mm³
Radius of gyrationry
19.41mm

Equivalents in other standards