ISMB – medium beams

ISMB 500

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 = 180d = 500tf = 17.2tf = 17.2tw = 10.2tw = 10.2
Cross-section, to scaledimensions in mm

Dimensions

Depthd
500mm
Flange widthbf
180mm
Web thicknesstw
10.2mm
Flange thicknesstf
17.2mm
Root radiusr1
17mm
Toe radiusr2
8.5mm

Mass and area

Mass per lengthm
86.93kg/m
Cross-sectional areaA
11,074mm²
Published area (standard)A pub.
11,000mm²
Outside perimeterP
1,624mm

Strong axis x–x

Moment of inertiaIx
452.210⁶ mm⁴
Elastic section modulusSx
1,80910³ mm³
Plastic section modulusZx
2,07510³ mm³
Radius of gyrationrx
202.1mm

Weak axis y–y

Moment of inertiaIy
13.710⁶ mm⁴
Elastic section modulusSy
152.210³ mm³
Plastic section modulusZy
259.610³ mm³
Radius of gyrationry
35.17mm

Equivalents in other standards