Rectangular and square HSS

HSS 127x127x6.4

Standard: CSA G40.20/G40.21Source: Calculated (exact engine)
Calculated: design thickness = nominal thickness (CSA G40.20, Class C), outside radius 2t. Range derived from ASTM A500 sizes — cross-check with the CISC tables.
xyb = 127d = 127t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
127mm
Widthb
127mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
23.24kg/m
Cross-sectional areaA
2,961mm²
Outside perimeterP
486.2mm

Strong axis x–x

Moment of inertiaIx
7.05310⁶ mm⁴
Elastic section modulusSx
111.110³ mm³
Plastic section modulusZx
132.310³ mm³
Radius of gyrationrx
48.81mm

Weak axis y–y

Moment of inertiaIy
7.05310⁶ mm⁴
Elastic section modulusSy
111.110³ mm³
Plastic section modulusZy
132.310³ mm³
Radius of gyrationry
48.81mm

Torsion and stability

Torsional constantJ
11,46010³ mm⁴

Equivalents in other standards