IR – wide flange (ASTM A6 W)

IR 1000x976

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 = 429d = 1,110tf = 89.9tf = 89.9tw = 50tw = 50
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,110mm
Flange widthbf
429mm
Web thicknesstw
50mm
Flange thicknesstf
89.9mm
Distance k (design)kdes
120mm
Distance k (detailing)kdet
122mm
Distance k1k1
55.6mm
Web clear depthT
864mm
Distance between flange centroidsho
1,020mm

Mass and area

Mass per lengthm
976kg/m
Cross-sectional areaA
125,000mm²

Strong axis x–x

Moment of inertiaIx
23,50010⁶ mm⁴
Elastic section modulusSx
42,50010³ mm³
Plastic section modulusZx
50,50010³ mm³
Radius of gyrationrx
434mm

Weak axis y–y

Moment of inertiaIy
1,19010⁶ mm⁴
Elastic section modulusSy
5,57010³ mm³
Plastic section modulusZy
8,88010³ mm³
Radius of gyrationry
98mm

Torsion and stability

Torsional constantJ
245,00010³ mm⁴
Warping constantCw
309,00010⁹ mm⁶
Effective radius of gyrationrts
120mm

Slenderness ratios

Flange slendernessbf/2tf
2.39
Web slendernessh/tw
17.3

Equivalents in other standards