Steel Beam Sizes / CISC / HSS Rectangular / HA178×127×6.4

HA178×127×6.4 Steel Beam Dimensions and Properties

CISC Rectangular HSS · v12.1

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

Units

Section diagram

HA178×127×6.4 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 19.00 lb/ft 28.30 kg/m
Height 7.00 in 177.80 mm
Width 5.00 in 127.00 mm
Nominal tw 0.250 in 6.350 mm
Design tw 0.225 in 5.720 mm
Area 5.07 in² 3,270.00 mm²
Ix 34.84 in⁴ 14,500,000 mm⁴
Iy 20.73 in⁴ 8,630,000 mm⁴
Sx 9.95 in³ 163,000.00 mm³
Sy 8.30 in³ 136,000.00 mm³
Zx 12.02 in³ 197,000.00 mm³
Zy 9.52 in³ 156,000.00 mm³
rx 2.62 in 66.60 mm
ry 2.02 in 51.40 mm
J 41.56 in⁴ 17,300,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA178×127×6.4.

Lighter in Rectangular HSS

HA127×76×9.5

Weight
25.7 kg/m (-8.9%)
Depth
127.0 mm (-29%)
Ix
5,760,000 mm⁴ (-60%)

Heavier in Rectangular HSS

HA152×102×7.9

Weight
28.4 kg/m (+0.5%)
Depth
152.4 mm (-14%)
Ix
10,100,000 mm⁴ (-30%)

Closest Iₓ in Rectangular HSS

HS152×102×13

Weight
42.3 kg/m (+49%)
Depth
152.4 mm (-14%)
Ix
14,700,000 mm⁴ (+1.4%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology