IR – wide flange (ASTM A6 W)

IR 1000x539

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 = 406d = 1,030tf = 51.1tf = 51.1tw = 28.4tw = 28.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,030mm
Flange widthbf
406mm
Web thicknesstw
28.4mm
Flange thicknesstf
51.1mm
Distance k (design)kdes
81mm
Distance k (detailing)kdet
82.6mm
Distance k1k1
44.5mm
Web clear depthT
864mm
Distance between flange centroidsho
980mm

Mass and area

Mass per lengthm
539kg/m
Cross-sectional areaA
68,400mm²

Strong axis x–x

Moment of inertiaIx
12,00010⁶ mm⁴
Elastic section modulusSx
23,30010³ mm³
Plastic section modulusZx
26,90010³ mm³
Radius of gyrationrx
419mm

Weak axis y–y

Moment of inertiaIy
57410⁶ mm⁴
Elastic section modulusSy
2,83010³ mm³
Plastic section modulusZy
4,42010³ mm³
Radius of gyrationry
91.4mm

Torsion and stability

Torsional constantJ
45,40010³ mm⁴
Warping constantCw
138,00010⁹ mm⁶
Effective radius of gyrationrts
110mm

Slenderness ratios

Flange slendernessbf/2tf
3.99
Web slendernessh/tw
30.5

Equivalents in other standards