ISMB – medium beams

ISMB 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 = 75d = 150tf = 8tf = 8tw = 5tw = 5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
150mm
Flange widthbf
75mm
Web thicknesstw
5mm
Flange thicknesstf
8mm
Root radiusr1
9mm
Toe radiusr2
4.5mm

Mass and area

Mass per lengthm
14.97kg/m
Cross-sectional areaA
1,907mm²
Published area (standard)A pub.
1,900mm²
Outside perimeterP
555.1mm

Strong axis x–x

Moment of inertiaIx
7.17610⁶ mm⁴
Elastic section modulusSx
95.6810³ mm³
Plastic section modulusZx
109.810³ mm³
Radius of gyrationrx
61.34mm

Weak axis y–y

Moment of inertiaIy
0.467810⁶ mm⁴
Elastic section modulusSy
12.4810³ mm³
Plastic section modulusZy
21.0810³ mm³
Radius of gyrationry
15.66mm

Equivalents in other standards