IR – wide flange (ASTM A6 W)

IR 200x59

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 = 205d = 210tf = 14.2tf = 14.2tw = 9.14tw = 9.14
Cross-section, to scaledimensions in mm

Dimensions

Depthd
210mm
Flange widthbf
205mm
Web thicknesstw
9.14mm
Flange thicknesstf
14.2mm
Distance k (design)kdes
24.2mm
Distance k (detailing)kdet
31.8mm
Distance k1k1
20.6mm
Web clear depthT
146mm
Distance between flange centroidsho
195mm

Mass and area

Mass per lengthm
59kg/m
Cross-sectional areaA
7,550mm²

Strong axis x–x

Moment of inertiaIx
60.810⁶ mm⁴
Elastic section modulusSx
58210³ mm³
Plastic section modulusZx
65210³ mm³
Radius of gyrationrx
89.7mm

Weak axis y–y

Moment of inertiaIy
20.410⁶ mm⁴
Elastic section modulusSy
20010³ mm³
Plastic section modulusZy
30310³ mm³
Radius of gyrationry
51.8mm

Torsion and stability

Torsional constantJ
46610³ mm⁴
Warping constantCw
19510⁹ mm⁶
Effective radius of gyrationrts
58.7mm

Slenderness ratios

Flange slendernessbf/2tf
7.21
Web slendernessh/tw
17.6

Equivalents in other standards