L – angles

L51x51x7.9

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 = 50.8d = 50.8t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
50.8mm
Widthb
50.8mm
Thicknesst
7.94mm
Distance k (design)kdes
14.3mm
Distance k (detailing)kdet
14.3mm

Mass and area

Mass per lengthm
5.8kg/m
Cross-sectional areaA
748mm²

Strong axis x–x

Moment of inertiaIx
0.17210⁶ mm⁴
Elastic section modulusSx
4.8810³ mm³
Plastic section modulusZx
8.810³ mm³
Radius of gyrationrx
15.2mm

Weak axis y–y

Moment of inertiaIy
0.17210⁶ mm⁴
Elastic section modulusSy
4.8810³ mm³
Plastic section modulusZy
8.810³ mm³
Radius of gyrationry
15.2mm

Principal axes

Moment of inertia, minor principal axisIz
0.071610⁶ mm⁴
Section modulus, minor principal axisSz
3.2810³ mm³
Radius of gyration, minor principal axisrz
9.8mm
Tangent of principal axis angletan α
1

Torsion and stability

Torsional constantJ
16.410³ mm⁴
Warping constantCw
0.0028510⁹ mm⁶
Polar radius (shear center)r̄o
26.9mm
Flexural constantH
0.64

Centers

Centroidx̄
15.5mm
Centroidȳ
15.5mm
Plastic neutral axisxp
7.37mm
Plastic neutral axisyp
7.37mm

Slenderness ratios

Wall slendernessb/t
6.39

Equivalents in other standards