L – angles

L203x102x12.7

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 = 102t = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
102mm
Widthb
203mm
Thicknesst
12.7mm
Distance k (design)kdes
25.4mm
Distance k (detailing)kdet
25.4mm

Mass and area

Mass per lengthm
29kg/m
Cross-sectional areaA
3,740mm²

Strong axis x–x

Moment of inertiaIx
16.110⁶ mm⁴
Elastic section modulusSx
12310³ mm³
Plastic section modulusZx
21510³ mm³
Radius of gyrationrx
65.5mm

Weak axis y–y

Moment of inertiaIy
2.8110⁶ mm⁴
Elastic section modulusSy
35.210³ mm³
Plastic section modulusZy
64.110³ mm³
Radius of gyrationry
27.4mm

Principal axes

Moment of inertia, minor principal axisIz
1.810⁶ mm⁴
Section modulus, minor principal axisSz
29.810³ mm³
Radius of gyration, minor principal axisrz
21.9mm
Tangent of principal axis angletan α
0.266

Torsion and stability

Torsional constantJ
20910³ mm⁴
Warping constantCw
0.48310⁹ mm⁶
Polar radius (shear center)r̄o
98mm

Centers

Centroidx̄
21.7mm
Centroidȳ
72.1mm
Plastic neutral axisxp
9.22mm
Plastic neutral axisyp
55.9mm

Slenderness ratios

Wall slendernessb/t
16

Equivalents in other standards