IR – wide flange (ASTM A6 W)

IR 310x60

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 = 203d = 302tf = 13.1tf = 13.1tw = 7.49tw = 7.49
Cross-section, to scaledimensions in mm

Dimensions

Depthd
302mm
Flange widthbf
203mm
Web thicknesstw
7.49mm
Flange thicknesstf
13.1mm
Distance k (design)kdes
25.9mm
Distance k (detailing)kdet
34.9mm
Distance k1k1
22.2mm
Web clear depthT
235mm
Distance between flange centroidsho
290mm

Mass and area

Mass per lengthm
60kg/m
Cross-sectional areaA
7,550mm²

Strong axis x–x

Moment of inertiaIx
12810⁶ mm⁴
Elastic section modulusSx
84410³ mm³
Plastic section modulusZx
93410³ mm³
Radius of gyrationrx
130mm

Weak axis y–y

Moment of inertiaIy
18.410⁶ mm⁴
Elastic section modulusSy
18010³ mm³
Plastic section modulusZy
27510³ mm³
Radius of gyrationry
49.3mm

Torsion and stability

Torsional constantJ
37710³ mm⁴
Warping constantCw
38710⁹ mm⁶
Effective radius of gyrationrts
56.1mm

Slenderness ratios

Flange slendernessbf/2tf
7.77
Web slendernessh/tw
33.6

Equivalents in other standards