IR – wide flange (ASTM A6 W)

IR 200x15

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 = 100d = 200tf = 5.21tf = 5.21tw = 4.32tw = 4.32
Cross-section, to scaledimensions in mm

Dimensions

Depthd
200mm
Flange widthbf
100mm
Web thicknesstw
4.32mm
Flange thicknesstf
5.21mm
Distance k (design)kdes
12.8mm
Distance k (detailing)kdet
17.5mm
Distance k1k1
12.7mm
Web clear depthT
165mm
Distance between flange centroidsho
195mm

Mass and area

Mass per lengthm
15kg/m
Cross-sectional areaA
1,910mm²

Strong axis x–x

Moment of inertiaIx
12.810⁶ mm⁴
Elastic section modulusSx
12810³ mm³
Plastic section modulusZx
14510³ mm³
Radius of gyrationrx
81.8mm

Weak axis y–y

Moment of inertiaIy
0.8710⁶ mm⁴
Elastic section modulusSy
17.410³ mm³
Plastic section modulusZy
27.210³ mm³
Radius of gyrationry
21.4mm

Torsion and stability

Torsional constantJ
17.710³ mm⁴
Warping constantCw
8.310⁹ mm⁶
Effective radius of gyrationrts
25.7mm

Slenderness ratios

Flange slendernessbf/2tf
9.61
Web slendernessh/tw
40.5

Equivalents in other standards