L – angles

L127x127x15.9

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 = 127d = 127t = 15.9t = 15.9
Cross-section, to scaledimensions in mm

Dimensions

Depthd
127mm
Widthb
127mm
Thicknesst
15.9mm
Distance k (design)kdes
28.7mm
Distance k (detailing)kdet
28.6mm

Mass and area

Mass per lengthm
29.8kg/m
Cross-sectional areaA
3,810mm²

Strong axis x–x

Moment of inertiaIx
5.6610⁶ mm⁴
Elastic section modulusSx
63.110³ mm³
Plastic section modulusZx
11410³ mm³
Radius of gyrationrx
38.6mm

Weak axis y–y

Moment of inertiaIy
5.6610⁶ mm⁴
Elastic section modulusSy
63.110³ mm³
Plastic section modulusZy
11410³ mm³
Radius of gyrationry
38.6mm

Principal axes

Moment of inertia, minor principal axisIz
2.3410⁶ mm⁴
Section modulus, minor principal axisSz
44.210³ mm³
Radius of gyration, minor principal axisrz
24.8mm
Tangent of principal axis angletan α
1

Torsion and stability

Torsional constantJ
33010³ mm⁴
Warping constantCw
0.37610⁹ mm⁶
Polar radius (shear center)r̄o
68.6mm
Flexural constantH
0.63

Centers

Centroidx̄
37.3mm
Centroidȳ
37.3mm
Plastic neutral axisxp
15mm
Plastic neutral axisyp
15mm

Slenderness ratios

Wall slendernessb/t
8

Equivalents in other standards