Rectangular and square HSS

HSS 178x127x13

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 = 177.8t = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
177.8mm
Widthb
127mm
Thicknesst
12.7mm
Outside corner radiusro
25.4mm

Mass and area

Mass per lengthm
52.45kg/m
Cross-sectional areaA
6,681mm²
Outside perimeterP
566mm

Strong axis x–x

Moment of inertiaIx
26.4210⁶ mm⁴
Elastic section modulusSx
297.110³ mm³
Plastic section modulusZx
377.810³ mm³
Radius of gyrationrx
62.88mm

Weak axis y–y

Moment of inertiaIy
15.4910⁶ mm⁴
Elastic section modulusSy
243.910³ mm³
Plastic section modulusZy
298.310³ mm³
Radius of gyrationry
48.14mm

Torsion and stability

Torsional constantJ
33,62010³ mm⁴

Equivalents in other standards