Steel Beam Sizes / CISC / Double Angles / 2LL127×89×7.9

2LL127×89×7.9 Steel Beam Dimensions and Properties

CISC Double angles · v12.1

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

Units

Section diagram

2LL127×89×7.9 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 17.40 lb/ft 25.80 kg/m
Width 3.50 in 88.90 mm
Height 5.00 in 127.00 mm
t 0.313 in 7.940 mm
Area 5.12 in² 3,300.00 mm²
Ix 13.21 in⁴ 5,500,000 mm⁴
Sx 3.88 in³ 63,500.00 mm³
rx 1.61 in 40.80 mm
J 0.17 in⁴ 69,400.00 mm⁴
Cw 0.26 in⁶ 68,800,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus 2LL127×89×7.9.

Lighter in Double angles

2LE89×89×9.5

Weight
25.2 kg/m (-2.3%)
Depth
88.9 mm (-30%)
Ix
2,390,000 mm⁴ (-57%)

Heavier in Double angles

2LL102×89×9.5

Weight
27.0 kg/m (+4.6%)
Depth
102.0 mm (-20%)
Ix
3,520,000 mm⁴ (-36%)

Closest Iₓ in Double angles

2LS178×102×13

Weight
53.0 kg/m (+106%)
Depth
102.0 mm (-20%)
Ix
5,500,000 mm⁴ (0.0%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Methodology