IR – wide flange (ASTM A6 W)

IR 840x210

Standard: ASTM A6 / IMCASource: SI values from the AISC v16.0 database
IR designation built from the metric W; cross-check with the IMCA Manual.
xybf = 292d = 846tf = 24.4tf = 24.4tw = 15.4tw = 15.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
846mm
Flange widthbf
292mm
Web thicknesstw
15.4mm
Flange thicknesstf
24.4mm
Distance k (design)kdes
42.2mm
Distance k (detailing)kdet
55.6mm
Distance k1k1
38.1mm
Web clear depthT
733mm
Distance between flange centroidsho
820mm

Mass and area

Mass per lengthm
210kg/m
Cross-sectional areaA
26,800mm²

Strong axis x–x

Moment of inertiaIx
3,10010⁶ mm⁴
Elastic section modulusSx
7,34010³ mm³
Plastic section modulusZx
8,42010³ mm³
Radius of gyrationrx
340mm

Weak axis y–y

Moment of inertiaIy
10210⁶ mm⁴
Elastic section modulusSy
70010³ mm³
Plastic section modulusZy
1,10010³ mm³
Radius of gyrationry
61.7mm

Torsion and stability

Torsional constantJ
4,04010³ mm⁴
Warping constantCw
17,30010⁹ mm⁶
Effective radius of gyrationrts
75.7mm

Slenderness ratios

Flange slendernessbf/2tf
6.01
Web slendernessh/tw
49.6

Equivalents in other standards