Steel Beam Sizes / AISC / Channels / C12x30

C12x30 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

C12x30 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 30.00 lb/ft 45.00 kg/m
Depth, d 12.00 in 305.00 mm
Flange width, bf 3.17 in 80.50 mm
tw 0.510 in 13.000 mm
tf 0.501 in 12.700 mm
Area 8.81 in² 5,680.00 mm²
Ix 162.00 in⁴ 67,400,000 mm⁴
Iy 5.12 in⁴ 2,130,000 mm⁴
Sx 27.00 in³ 442,000.00 mm³
Sy 2.05 in³ 33,600.00 mm³
Zx 33.80 in³ 554,000.00 mm³
Zy 4.32 in³ 70,800.00 mm³
rx 4.29 in 109.00 mm
ry 0.76 in 19.40 mm
J 0.86 in⁴ 358,000.00 mm⁴
Cw 151.00 in⁶ 40,500,000,000 mm⁶

Alternatives

Useful nearby sections

Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus C12x30.

Lighter in C12

C12x25

Weight
25.0 lb/ft (-17%)
Depth
12.00 in (0.0%)
Ix
144.0 in⁴ (-11%)

Closest Iₓ in C12

C12x20.7

Weight
20.7 lb/ft (-31%)
Depth
12.00 in (0.0%)
Ix
129.0 in⁴ (-20%)

Similar weight in C10

C10x30

Weight
30.0 lb/ft (0.0%)
Depth
10.00 in (-17%)
Ix
103.0 in⁴ (-36%)
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Source: AISC Shapes Database v16.0 · Methodology