IR – wide flange (ASTM A6 W)

IR 1000x314

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 = 300d = 1,000tf = 36.1tf = 36.1tw = 19.1tw = 19.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,000mm
Flange widthbf
300mm
Web thicknesstw
19.1mm
Flange thicknesstf
36.1mm
Distance k (design)kdes
66mm
Distance k (detailing)kdet
68.3mm
Distance k1k1
39.7mm
Web clear depthT
864mm
Distance between flange centroidsho
965mm

Mass and area

Mass per lengthm
314kg/m
Cross-sectional areaA
40,100mm²

Strong axis x–x

Moment of inertiaIx
6,45010⁶ mm⁴
Elastic section modulusSx
12,90010³ mm³
Plastic section modulusZx
14,80010³ mm³
Radius of gyrationrx
401mm

Weak axis y–y

Moment of inertiaIy
16210⁶ mm⁴
Elastic section modulusSy
1,08010³ mm³
Plastic section modulusZy
1,72010³ mm³
Radius of gyrationry
63.8mm

Torsion and stability

Torsional constantJ
12,70010³ mm⁴
Warping constantCw
37,90010⁹ mm⁶
Effective radius of gyrationrts
78mm

Slenderness ratios

Flange slendernessbf/2tf
4.17
Web slendernessh/tw
45.6

Equivalents in other standards