IR – wide flange (ASTM A6 W)

IR 760x314

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 = 384d = 785tf = 33.5tf = 33.5tw = 19.7tw = 19.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
785mm
Flange widthbf
384mm
Web thicknesstw
19.7mm
Flange thicknesstf
33.5mm
Distance k (design)kdes
53.3mm
Distance k (detailing)kdet
65.1mm
Distance k1k1
41.3mm
Web clear depthT
654mm
Distance between flange centroidsho
752mm

Mass and area

Mass per lengthm
314kg/m
Cross-sectional areaA
40,200mm²

Strong axis x–x

Moment of inertiaIx
4,29010⁶ mm⁴
Elastic section modulusSx
10,90010³ mm³
Plastic section modulusZx
12,30010³ mm³
Radius of gyrationrx
328mm

Weak axis y–y

Moment of inertiaIy
31510⁶ mm⁴
Elastic section modulusSy
1,64010³ mm³
Plastic section modulusZy
2,54010³ mm³
Radius of gyrationry
88.6mm

Torsion and stability

Torsional constantJ
11,80010³ mm⁴
Warping constantCw
44,60010⁹ mm⁶
Effective radius of gyrationrts
104mm

Slenderness ratios

Flange slendernessbf/2tf
5.74
Web slendernessh/tw
34.5

Equivalents in other standards