Steel Beam Sizes / CISC / S-Shapes / S510×128

S510×128 Steel Beam Dimensions and Properties

CISC American standard beams · v12.1

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

Units

Section diagram

S510×128 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 86.00 lb/ft 128.00 kg/m
Depth, d 20.31 in 516.00 mm
Flange width, bf 7.05 in 179.00 mm
tw 0.661 in 16.800 mm
tf 0.921 in 23.400 mm
Area 25.42 in² 16,400.00 mm²
Ix 1,580.85 in⁴ 658,000,000 mm⁴
Iy 46.13 in⁴ 19,200,000 mm⁴
Sx 155.61 in³ 2,550,000 mm³
Sy 13.06 in³ 214,000.00 mm³
Zx 183.68 in³ 3,010,000 mm³
Zy 23.07 in³ 378,000.00 mm³
rx 7.87 in 200.00 mm
ry 1.35 in 34.20 mm
J 6.65 in⁴ 2,770,000 mm⁴
Cw 4,319.72 in⁶ 1,160,000,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus S510×128.

Lighter in S510

S510×112

Weight
112.0 kg/m (-13%)
Depth
508.0 mm (-1.6%)
Ix
532,000,000 mm⁴ (-19%)

Heavier in S510

S510×143

Weight
143.0 kg/m (+12%)
Depth
516.0 mm (0.0%)
Ix
700,000,000 mm⁴ (+6.4%)

Closest Iₓ in S510

S510×98.2

Weight
98.2 kg/m (-23%)
Depth
508.0 mm (-1.6%)
Ix
497,000,000 mm⁴ (-24%)

Similar weight in S610

S610×134

Weight
134.0 kg/m (+4.7%)
Depth
610.0 mm (+18%)
Ix
939,000,000 mm⁴ (+43%)
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Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Not produced in Canada. · Methodology