Steel Beam Sizes / CISC / HSS Rectangular / HA102×76×7.9

HA102×76×7.9 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

HA102×76×7.9 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
Height 4.00 in 101.60 mm
Width 3.00 in 76.20 mm
Nominal tw 0.313 in 7.940 mm
Design tw 0.281 in 7.150 mm
Area 3.43 in² 2,210.00 mm²
Ix 6.99 in⁴ 2,910,000 mm⁴
Iy 4.42 in⁴ 1,840,000 mm⁴
Sx 3.49 in³ 57,200.00 mm³
Sy 2.95 in³ 48,400.00 mm³
Zx 4.41 in³ 72,200.00 mm³
Zy 3.60 in³ 59,000.00 mm³
rx 1.43 in 36.30 mm
ry 1.14 in 28.90 mm
J 9.18 in⁴ 3,820,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HA102×76×7.9.

Lighter in Rectangular HSS

HA102×51×9.5

Weight
18.1 kg/m (-3.9%)
Depth
101.6 mm (0.0%)
Ix
2,290,000 mm⁴ (-21%)

Heavier in Rectangular HSS

HA127×102×6.4

Weight
20.7 kg/m (+9.4%)
Depth
127.0 mm (+25%)
Ix
5,420,000 mm⁴ (+86%)

Closest Iₓ in Rectangular HSS

HA127×102×3.2

Weight
10.9 kg/m (-42%)
Depth
127.0 mm (+25%)
Ix
3,010,000 mm⁴ (+3.4%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · ASTM A500 · Methodology