Rectangular and square HSS

HSS 127x102x3.2

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 = 101.6d = 127t = 3.17t = 3.17
Cross-section, to scaledimensions in mm

Dimensions

Depthd
127mm
Widthb
101.6mm
Thicknesst
3.17mm
Outside corner radiusro
6.35mm

Mass and area

Mass per lengthm
10.86kg/m
Cross-sectional areaA
1,383mm²
Outside perimeterP
446.3mm

Strong axis x–x

Moment of inertiaIx
3.29510⁶ mm⁴
Elastic section modulusSx
51.8910³ mm³
Plastic section modulusZx
61.3210³ mm³
Radius of gyrationrx
48.81mm

Weak axis y–y

Moment of inertiaIy
2.34210⁶ mm⁴
Elastic section modulusSy
46.1110³ mm³
Plastic section modulusZy
52.7110³ mm³
Radius of gyrationry
41.15mm

Torsion and stability

Torsional constantJ
4,30810³ mm⁴

Equivalents in other standards