L – angles

L64x38x6.4

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 = 38.1t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
38.1mm
Widthb
63.5mm
Thicknesst
6.35mm
Distance k (design)kdes
12.7mm
Distance k (detailing)kdet
12.7mm

Mass and area

Mass per lengthm
4.8kg/m
Cross-sectional areaA
611mm²

Strong axis x–x

Moment of inertiaIx
0.24710⁶ mm⁴
Elastic section modulusSx
5.9610³ mm³
Plastic section modulusZx
10.610³ mm³
Radius of gyrationrx
20.1mm

Weak axis y–y

Moment of inertiaIy
0.066610⁶ mm⁴
Elastic section modulusSy
2.3310³ mm³
Plastic section modulusZy
4.2810³ mm³
Radius of gyrationry
10.4mm

Principal axes

Moment of inertia, minor principal axisIz
0.040710⁶ mm⁴
Section modulus, minor principal axisSz
1.9510³ mm³
Radius of gyration, minor principal axisrz
8.15mm
Tangent of principal axis angletan α
0.354

Torsion and stability

Torsional constantJ
8.710³ mm⁴
Warping constantCw
0.0018610⁹ mm⁶
Polar radius (shear center)r̄o
30.2mm

Centers

Centroidx̄
9.45mm
Centroidȳ
22mm
Plastic neutral axisxp
4.8mm
Plastic neutral axisyp
15.4mm

Slenderness ratios

Wall slendernessb/t
10

Equivalents in other standards