L – angles

L203x203x12.7

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 = 203d = 203t = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
203mm
Widthb
203mm
Thicknesst
12.7mm
Distance k (design)kdes
28.7mm
Distance k (detailing)kdet
28.6mm

Mass and area

Mass per lengthm
39.3kg/m
Cross-sectional areaA
5,060mm²

Strong axis x–x

Moment of inertiaIx
20.310⁶ mm⁴
Elastic section modulusSx
13710³ mm³
Plastic section modulusZx
24710³ mm³
Radius of gyrationrx
63.2mm

Weak axis y–y

Moment of inertiaIy
20.310⁶ mm⁴
Elastic section modulusSy
13710³ mm³
Plastic section modulusZy
24710³ mm³
Radius of gyrationry
63.2mm

Principal axes

Moment of inertia, minor principal axisIz
8.2410⁶ mm⁴
Section modulus, minor principal axisSz
10610³ mm³
Radius of gyration, minor principal axisrz
40.4mm
Tangent of principal axis angletan α
1

Torsion and stability

Torsional constantJ
28410³ mm⁴
Warping constantCw
0.86710⁹ mm⁶
Polar radius (shear center)r̄o
113mm
Flexural constantH
0.63

Centers

Centroidx̄
55.1mm
Centroidȳ
55.1mm
Plastic neutral axisxp
12.4mm
Plastic neutral axisyp
12.4mm

Slenderness ratios

Wall slendernessb/t
16

Equivalents in other standards