Steel Beam Sizes / CISC / HSS Rectangular / HS178×127×7.9

HS178×127×7.9 Steel Beam Dimensions and Properties

CISC Rectangular HSS · v12.1

Analyze in Beam Calculator Back to HSS Rectangular

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

Units

Section diagram

HS178×127×7.9 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 23.40 lb/ft 34.70 kg/m
Height 7.00 in 177.80 mm
Width 5.00 in 127.00 mm
Nominal tw 0.313 in 7.940 mm
Design tw 0.313 in 7.940 mm
Area 6.87 in² 4,430.00 mm²
Ix 45.41 in⁴ 18,900,000 mm⁴
Iy 26.91 in⁴ 11,200,000 mm⁴
Sx 13.00 in³ 213,000.00 mm³
Sy 10.80 in³ 177,000.00 mm³
Zx 15.93 in³ 261,000.00 mm³
Zy 12.63 in³ 207,000.00 mm³
rx 2.57 in 65.40 mm
ry 1.98 in 50.30 mm
J 55.26 in⁴ 23,000,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HS178×127×7.9.

Lighter in Rectangular HSS

HA152×102×9.5

Weight
33.3 kg/m (-4.3%)
Depth
152.4 mm (-14%)
Ix
11,500,000 mm⁴ (-39%)

Heavier in Rectangular HSS

HA127×102×13

Weight
37.3 kg/m (+6.8%)
Depth
127.0 mm (-29%)
Ix
8,670,000 mm⁴ (-54%)

Closest Iₓ in Rectangular HSS

HS203×102×6.4

Weight
28.3 kg/m (-19%)
Depth
203.2 mm (+14%)
Ix
18,800,000 mm⁴ (-0.5%)
Analyze in Beam Calculator Compare in HSS Rectangular finder

Source: CISC Structural Section Tables SST12.1 · v12.1 · CSA G40 · Methodology