Steel Beam Sizes / CISC / HSS Round / HA406×6.4

HA406×6.4 Steel Beam Dimensions and Properties

CISC Round HSS · v12.1

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Diagram, properties emphasis, and nearby alternatives use the selected unit system.

Units

Section diagram

HA406×6.4 dimensions

Not to scale. Dimensions shown for reference.

Section properties

Symbols match the steel section finder. Imperial and metric values are shown side by side.

Property Imperial Metric
Weight 42.10 lb/ft 62.60 kg/m
OD 16.000 in 406.400 mm
Nominal tw 0.250 in 6.350 mm
Design tw 0.225 in 5.720 mm
Area 11.16 in² 7,200.00 mm²
Ix 348.36 in⁴ 145,000,000 mm⁴
Iy 348.36 in⁴ 145,000,000 mm⁴
Sx 43.39 in³ 711,000.00 mm³
Sy 43.39 in³ 711,000.00 mm³
Zx 56.02 in³ 918,000.00 mm³
Zy 56.02 in³ 918,000.00 mm³
rx 5.59 in 142.00 mm
ry 5.59 in 142.00 mm
J 694.33 in⁴ 289,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA406×6.4.

Lighter in Round HSS

HA273×9.5

Weight
61.9 kg/m (-1.2%)
Depth
— mm
Ix
62,400,000 mm⁴ (-57%)

Heavier in Round HSS

HA219×13

Weight
64.6 kg/m (+3.1%)
Depth
— mm
Ix
40,300,000 mm⁴ (-72%)

Closest Iₓ in Round HSS

HA356×9.5

Weight
81.3 kg/m (+30%)
Depth
— mm
Ix
141,000,000 mm⁴ (-2.8%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology