ISLB – light beams

ISLB 175

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 = 90d = 175tf = 6.9tf = 6.9tw = 5tw = 5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
175mm
Flange widthbf
90mm
Web thicknesstw
5mm
Flange thicknesstf
6.9mm
Root radiusr1
9.5mm
Toe radiusr2
3mm

Mass and area

Mass per lengthm
16.47kg/m
Cross-sectional areaA
2,098mm²
Published area (standard)A pub.
2,110mm²
Outside perimeterP
662.4mm

Strong axis x–x

Moment of inertiaIx
10.7710⁶ mm⁴
Elastic section modulusSx
12310³ mm³
Plastic section modulusZx
140.410³ mm³
Radius of gyrationrx
71.63mm

Weak axis y–y

Moment of inertiaIy
0.659510⁶ mm⁴
Elastic section modulusSy
14.6610³ mm³
Plastic section modulusZy
25.3510³ mm³
Radius of gyrationry
17.73mm

Equivalents in other standards