L – angles

L64x51x9.5

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 = 63.5d = 50.8t = 9.53t = 9.53
Cross-section, to scaledimensions in mm

Dimensions

Depthd
50.8mm
Widthb
63.5mm
Thicknesst
9.53mm
Distance k (design)kdes
15.9mm
Distance k (detailing)kdet
15.9mm

Mass and area

Mass per lengthm
7.9kg/m
Cross-sectional areaA
1,000mm²

Strong axis x–x

Moment of inertiaIx
0.3810⁶ mm⁴
Elastic section modulusSx
8.9510³ mm³
Plastic section modulusZx
16.110³ mm³
Radius of gyrationrx
19.5mm

Weak axis y–y

Moment of inertiaIy
0.21410⁶ mm⁴
Elastic section modulusSy
5.9210³ mm³
Plastic section modulusZy
10.810³ mm³
Radius of gyrationry
14.6mm

Principal axes

Moment of inertia, minor principal axisIz
0.11410⁶ mm⁴
Section modulus, minor principal axisSz
4.8310³ mm³
Radius of gyration, minor principal axisrz
10.6mm
Tangent of principal axis angletan α
0.612

Torsion and stability

Torsional constantJ
31.110³ mm⁴
Warping constantCw
0.007210⁹ mm⁶
Polar radius (shear center)r̄o
31mm

Centers

Centroidx̄
14.7mm
Centroidȳ
21mm
Plastic neutral axisxp
7.87mm
Plastic neutral axisyp
11mm

Slenderness ratios

Wall slendernessb/t
6.67

Equivalents in other standards