L – angles

L178x102x12.7

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 = 178d = 102t = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
102mm
Widthb
178mm
Thicknesst
12.7mm
Distance k (design)kdes
25.4mm
Distance k (detailing)kdet
25.4mm

Mass and area

Mass per lengthm
26.5kg/m
Cross-sectional areaA
3,390mm²

Strong axis x–x

Moment of inertiaIx
11.110⁶ mm⁴
Elastic section modulusSx
94.910³ mm³
Plastic section modulusZx
16710³ mm³
Radius of gyrationrx
57.2mm

Weak axis y–y

Moment of inertiaIy
2.710⁶ mm⁴
Elastic section modulusSy
34.410³ mm³
Plastic section modulusZy
61.810³ mm³
Radius of gyrationry
28.2mm

Principal axes

Moment of inertia, minor principal axisIz
1.6410⁶ mm⁴
Section modulus, minor principal axisSz
28.810³ mm³
Radius of gyration, minor principal axisrz
22mm
Tangent of principal axis angletan α
0.334

Torsion and stability

Torsional constantJ
19010³ mm⁴
Warping constantCw
0.33610⁹ mm⁶
Polar radius (shear center)r̄o
85.6mm

Centers

Centroidx̄
23.1mm
Centroidȳ
61mm
Plastic neutral axisxp
9.55mm
Plastic neutral axisyp
44.2mm

Slenderness ratios

Wall slendernessb/t
14

Equivalents in other standards