L – angles

L254x254x28.6

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).
xyb = 254d = 254t = 28.7t = 28.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
254mm
Widthb
254mm
Thicknesst
28.7mm
Distance k (design)kdes
49mm
Distance k (detailing)kdet
49.2mm

Mass and area

Mass per lengthm
108kg/m
Cross-sectional areaA
13,700mm²

Strong axis x–x

Moment of inertiaIx
81.610⁶ mm⁴
Elastic section modulusSx
45210³ mm³
Plastic section modulusZx
82310³ mm³
Radius of gyrationrx
77mm

Weak axis y–y

Moment of inertiaIy
81.610⁶ mm⁴
Elastic section modulusSy
45210³ mm³
Plastic section modulusZy
82310³ mm³
Radius of gyrationry
77mm

Principal axes

Moment of inertia, minor principal axisIz
32.510⁶ mm⁴
Section modulus, minor principal axisSz
31310³ mm³
Radius of gyration, minor principal axisrz
48.8mm
Tangent of principal axis angletan α
1

Torsion and stability

Torsional constantJ
3,83010³ mm⁴
Warping constantCw
18.110⁹ mm⁶
Polar radius (shear center)r̄o
137mm
Flexural constantH
0.627

Centers

Centroidx̄
73.7mm
Centroidȳ
73.7mm
Plastic neutral axisxp
27.2mm
Plastic neutral axisyp
27.2mm

Slenderness ratios

Wall slendernessb/t
8.85

Equivalents in other standards