Steel Beam Sizes / CISC / HSS Round / HA127×6.4

HA127×6.4 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

HA127×6.4 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 12.70 lb/ft 18.90 kg/m
OD 5.000 in 127.000 mm
Nominal tw 0.250 in 6.350 mm
Design tw 0.225 in 5.720 mm
Area 3.38 in² 2,180.00 mm²
Ix 9.66 in⁴ 4,020,000 mm⁴
Iy 9.66 in⁴ 4,020,000 mm⁴
Sx 3.86 in³ 63,200.00 mm³
Sy 3.86 in³ 63,200.00 mm³
Zx 5.14 in³ 84,200.00 mm³
Zy 5.14 in³ 84,200.00 mm³
rx 1.69 in 42.90 mm
ry 1.69 in 42.90 mm
J 19.29 in⁴ 8,030,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA127×6.4.

Lighter in Round HSS

HA114×6.4

Weight
16.9 kg/m (-10%)
Depth
— mm
Ix
2,880,000 mm⁴ (-28%)

Heavier in Round HSS

HA168×4.8

Weight
19.3 kg/m (+1.6%)
Depth
— mm
Ix
7,450,000 mm⁴ (+85%)

Closest Iₓ in Round HSS

HS127×6.4

Weight
18.9 kg/m (0.0%)
Depth
— mm
Ix
4,390,000 mm⁴ (+9.2%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology