Steel Beam Sizes / AISC / Channels / C8x18.75

C8x18.75 Steel Beam Dimensions and Properties

AISC Channels · v16.0

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

Units

Section diagram

C8x18.75 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 18.75 lb/ft 27.90 kg/m
Depth, d 8.00 in 203.00 mm
Flange width, bf 2.53 in 64.30 mm
tw 0.487 in 12.400 mm
tf 0.390 in 9.910 mm
Area 5.51 in² 3,550.00 mm²
Ix 43.90 in⁴ 18,300,000 mm⁴
Iy 1.97 in⁴ 820,000.00 mm⁴
Sx 11.00 in³ 180,000.00 mm³
Sy 1.01 in³ 16,600.00 mm³
Zx 13.90 in³ 228,000.00 mm³
Zy 2.17 in³ 35,600.00 mm³
rx 2.82 in 71.60 mm
ry 0.60 in 15.20 mm
J 0.43 in⁴ 181,000.00 mm⁴
Cw 25.10 in⁶ 6,740,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus C8x18.75.

Lighter in C8

C8x13.75

Weight
13.8 lb/ft (-27%)
Depth
8.00 in (0.0%)
Ix
36.1 in⁴ (-18%)

Closest Iₓ in C8

C8x11.5

Weight
11.5 lb/ft (-39%)
Depth
8.00 in (0.0%)
Ix
32.5 in⁴ (-26%)

Similar weight in C9

C9x20

Weight
20.0 lb/ft (+6.7%)
Depth
9.00 in (+13%)
Ix
60.9 in⁴ (+39%)
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Source: AISC Shapes Database v16.0 · Methodology