Rectangular and square HSS

HSS 178x127x6.4

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 = 177.8t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
177.8mm
Widthb
127mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
28.31kg/m
Cross-sectional areaA
3,606mm²
Outside perimeterP
587.8mm

Strong axis x–x

Moment of inertiaIx
15.8210⁶ mm⁴
Elastic section modulusSx
17810³ mm³
Plastic section modulusZx
215.710³ mm³
Radius of gyrationrx
66.24mm

Weak axis y–y

Moment of inertiaIy
9.40310⁶ mm⁴
Elastic section modulusSy
148.110³ mm³
Plastic section modulusZy
171.210³ mm³
Radius of gyrationry
51.06mm

Torsion and stability

Torsional constantJ
19,04410³ mm⁴

Equivalents in other standards