S – standard beams

S380x74

Standard: ASTM A6/A6M (désignations métriques)Source: SI values from the AISC v16.0 database (ASTM A6 shapes common to Canada)
ASTM A6 rolled shapes are the same in Canada; the CISC list may differ slightly (availability).
xybf = 143d = 381tf = 15.8tf = 15.8tw = 14tw = 14
Cross-section, to scaledimensions in mm

Dimensions

Depthd
381mm
Flange widthbf
143mm
Web thicknesstw
14mm
Flange thicknesstf
15.8mm
Distance k (design)kdes
35.1mm
Distance k (detailing)kdet
34.9mm
Web clear depthT
311mm
Distance between flange centroidsho
366mm

Mass and area

Mass per lengthm
74kg/m
Cross-sectional areaA
9,480mm²

Strong axis x–x

Moment of inertiaIx
20210⁶ mm⁴
Elastic section modulusSx
1,06010³ mm³
Plastic section modulusZx
1,26010³ mm³
Radius of gyrationrx
146mm

Weak axis y–y

Moment of inertiaIy
6.4910⁶ mm⁴
Elastic section modulusSy
90.610³ mm³
Plastic section modulusZy
16410³ mm³
Radius of gyrationry
26.2mm

Torsion and stability

Torsional constantJ
88210³ mm⁴
Warping constantCw
21610⁹ mm⁶
Effective radius of gyrationrts
33.5mm

Slenderness ratios

Flange slendernessbf/2tf
4.53
Web slendernessh/tw
22.7

Equivalents in other standards