IR – wide flange (ASTM A6 W)

IR 310x97

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 = 305d = 307tf = 15.4tf = 15.4tw = 9.91tw = 9.91
Cross-section, to scaledimensions in mm

Dimensions

Depthd
307mm
Flange widthbf
305mm
Web thicknesstw
9.91mm
Flange thicknesstf
15.4mm
Distance k (design)kdes
30.5mm
Distance k (detailing)kdet
38.1mm
Distance k1k1
25.4mm
Web clear depthT
232mm
Distance between flange centroidsho
292mm

Mass and area

Mass per lengthm
97kg/m
Cross-sectional areaA
12,300mm²

Strong axis x–x

Moment of inertiaIx
22210⁶ mm⁴
Elastic section modulusSx
1,44010³ mm³
Plastic section modulusZx
1,59010³ mm³
Radius of gyrationrx
134mm

Weak axis y–y

Moment of inertiaIy
72.410⁶ mm⁴
Elastic section modulusSy
47710³ mm³
Plastic section modulusZy
72310³ mm³
Radius of gyrationry
76.7mm

Torsion and stability

Torsional constantJ
90710³ mm⁴
Warping constantCw
1,55010⁹ mm⁶
Effective radius of gyrationrts
85.9mm

Slenderness ratios

Flange slendernessbf/2tf
9.92
Web slendernessh/tw
24.9

Equivalents in other standards