ISLB – light beams

ISLB 450

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 = 170d = 450tf = 13.4tf = 13.4tw = 8.6tw = 8.6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
450mm
Flange widthbf
170mm
Web thicknesstw
8.6mm
Flange thicknesstf
13.4mm
Root radiusr1
16mm
Toe radiusr2
8mm

Mass and area

Mass per lengthm
65.26kg/m
Cross-sectional areaA
8,314mm²
Published area (standard)A pub.
8,310mm²
Outside perimeterP
1,491mm

Strong axis x–x

Moment of inertiaIx
275.410⁶ mm⁴
Elastic section modulusSx
1,22410³ mm³
Plastic section modulusZx
1,40110³ mm³
Radius of gyrationrx
182mm

Weak axis y–y

Moment of inertiaIy
8.53210⁶ mm⁴
Elastic section modulusSy
100.410³ mm³
Plastic section modulusZy
174.710³ mm³
Radius of gyrationry
32.04mm

Equivalents in other standards