IR – wide flange (ASTM A6 W)

IR 310x67

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 = 204d = 307tf = 14.6tf = 14.6tw = 8.51tw = 8.51
Cross-section, to scaledimensions in mm

Dimensions

Depthd
307mm
Flange widthbf
204mm
Web thicknesstw
8.51mm
Flange thicknesstf
14.6mm
Distance k (design)kdes
27.4mm
Distance k (detailing)kdet
34.9mm
Distance k1k1
23.8mm
Web clear depthT
235mm
Distance between flange centroidsho
292mm

Mass and area

Mass per lengthm
67kg/m
Cross-sectional areaA
8,450mm²

Strong axis x–x

Moment of inertiaIx
14510⁶ mm⁴
Elastic section modulusSx
94610³ mm³
Plastic section modulusZx
1,05010³ mm³
Radius of gyrationrx
131mm

Weak axis y–y

Moment of inertiaIy
20.810⁶ mm⁴
Elastic section modulusSy
20310³ mm³
Plastic section modulusZy
31110³ mm³
Radius of gyrationry
49.5mm

Torsion and stability

Torsional constantJ
52410³ mm⁴
Warping constantCw
44310⁹ mm⁶
Effective radius of gyrationrts
56.6mm

Slenderness ratios

Flange slendernessbf/2tf
7
Web slendernessh/tw
29.6

Equivalents in other standards