Steel Beam Sizes / AISC / HSS Square / HSS 6x6x3/8

HSS 6x6x3/8 Steel Beam Dimensions and Properties

AISC Square HSS · v16.0

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

Units

Section diagram

HSS 6x6x3/8 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 27.48 lb/ft 40.80 kg/m
Height 6.00 in 152.00 mm
Width 6.00 in 152.00 mm
Nominal tw 0.375 in 9.530 mm
Design tw 0.349 in 8.860 mm
Area 7.58 in² 4,890.00 mm²
Ix 39.50 in⁴ 16,400,000 mm⁴
Iy 39.50 in⁴ 16,400,000 mm⁴
Sx 13.20 in³ 216,000.00 mm³
Sy 13.20 in³ 216,000.00 mm³
Zx 15.80 in³ 259,000.00 mm³
Zy 15.80 in³ 259,000.00 mm³
rx 2.28 in 57.90 mm
ry 2.28 in 57.90 mm
J 64.60 in⁴ 26,900,000 mm⁴

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus HSS 6x6x3/8.

Lighter in Square HSS

HSS 8x8x1/4

Weight
25.8 lb/ft (-6.0%)
Depth
8.00 in (+33%)
Ix
70.7 in⁴ (+79%)

Heavier in Square HSS

HSS 7x7x5/16

Weight
27.6 lb/ft (+0.4%)
Depth
7.00 in (+17%)
Ix
56.1 in⁴ (+42%)

Closest Iₓ in Square HSS

HSS 8x8x1/8

Weight
13.3 lb/ft (-52%)
Depth
8.00 in (+33%)
Ix
37.4 in⁴ (-5.3%)
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Source: AISC Shapes Database v16.0 · Methodology