IR – wide flange (ASTM A6 W)

IR 920x289

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 = 307d = 927tf = 32tf = 32tw = 19.4tw = 19.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
927mm
Flange widthbf
307mm
Web thicknesstw
19.4mm
Flange thicknesstf
32mm
Distance k (design)kdes
51.1mm
Distance k (detailing)kdet
63.5mm
Distance k1k1
39.7mm
Web clear depthT
800mm
Distance between flange centroidsho
894mm

Mass and area

Mass per lengthm
289kg/m
Cross-sectional areaA
36,800mm²

Strong axis x–x

Moment of inertiaIx
5,04010⁶ mm⁴
Elastic section modulusSx
10,90010³ mm³
Plastic section modulusZx
12,60010³ mm³
Radius of gyrationrx
371mm

Weak axis y–y

Moment of inertiaIy
15610⁶ mm⁴
Elastic section modulusSy
1,01010³ mm³
Plastic section modulusZy
1,60010³ mm³
Radius of gyrationry
65mm

Torsion and stability

Torsional constantJ
9,24010³ mm⁴
Warping constantCw
31,20010⁹ mm⁶
Effective radius of gyrationrts
80mm

Slenderness ratios

Flange slendernessbf/2tf
4.81
Web slendernessh/tw
42.4

Equivalents in other standards