ISJB – junior beams

ISJB 225

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 = 80d = 225tf = 5tf = 5tw = 3.7tw = 3.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
225mm
Flange widthbf
80mm
Web thicknesstw
3.7mm
Flange thicknesstf
5mm
Root radiusr1
6.5mm
Toe radiusr2
1.5mm

Mass and area

Mass per lengthm
12.72kg/m
Cross-sectional areaA
1,620mm²
Published area (standard)A pub.
1,620mm²
Outside perimeterP
732.8mm

Strong axis x–x

Moment of inertiaIx
12.9710⁶ mm⁴
Elastic section modulusSx
115.310³ mm³
Plastic section modulusZx
133.110³ mm³
Radius of gyrationrx
89.47mm

Weak axis y–y

Moment of inertiaIy
0.316810⁶ mm⁴
Elastic section modulusSy
7.92110³ mm³
Plastic section modulusZy
14.1610³ mm³
Radius of gyrationry
13.98mm

Equivalents in other standards