ISJB – junior beams

ISJB 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 = 50d = 150tf = 4.6tf = 4.6tw = 3tw = 3
Cross-section, to scaledimensions in mm

Dimensions

Depthd
150mm
Flange widthbf
50mm
Web thicknesstw
3mm
Flange thicknesstf
4.6mm
Root radiusr1
5mm
Toe radiusr2
1.5mm

Mass and area

Mass per lengthm
7.037kg/m
Cross-sectional areaA
896.4mm²
Published area (standard)A pub.
900mm²
Outside perimeterP
473.7mm

Strong axis x–x

Moment of inertiaIx
3.18810⁶ mm⁴
Elastic section modulusSx
42.510³ mm³
Plastic section modulusZx
49.2110³ mm³
Radius of gyrationrx
59.63mm

Weak axis y–y

Moment of inertiaIy
0.079310⁶ mm⁴
Elastic section modulusSy
3.17210³ mm³
Plastic section modulusZy
5.46210³ mm³
Radius of gyrationry
9.406mm

Equivalents in other standards