AISC v16.0 · C shape

C15X50

C15X50 weighs 50 lb/ft, has a depth of 15 in, a cross-sectional area of 14.7 in², and an x-axis elastic section modulus Sx of 53.8 in³. Open the full US customary property record or generate 2D, data, report, and 3D reference files locally in your browser.

C 50 lb/ft · 14.7 in² · EDI C15X50

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Nominal profile Units · inches

Building nominal profile…

Weight: 50 lb/ft
Area: 14.7 in²
Depth: 15 in
Elastic Sx: 53.8 in³

From designation to geometry

Reading the C15X50 record

The 15 in depth series in C15X50 is a designation. The tabulated depth d is 15 in and flange width bf is 3.72 in. The separately listed detailing depth ddet is 15 in.

The web thickness tw is 0.716 in and flange thickness tf is 0.65 in. This open channel also has centroid x = 0.799 in and shear-center offset eo = 0.583 in; preserve the toe direction and source axis convention when using those values.

Ix = 404 in⁴ and Iy = 11 in⁴ refer to the database x- and y-axes. Here Ix is numerically larger. Axis letters are labels, not a guarantee that x is always the larger axis. These are geometric properties, not allowable loads or complete member capacities.

Match the axis and dimension conventions to the figures in the AISC v16.0 workbook Readme. The profile above simplifies manufacturing geometry; its outline is not used to recalculate the published properties.

Worked quantity example

Nominal weight for C15X50

Assume 3 pieces, each 20 ft (6.096 m) long. This is a hypothetical quantity example, not a stock-length or lifting recommendation.

Using the published 50 lb/ft weight
Quantity	Calculation	Nominal pounds	Kilogram equivalent
One 20 ft piece	20 ft × 50 lb/ft	1,000 lb	453.592 kg
3 pieces	3 × 1,000 lb	3,000 lb	1,360.777 kg

Conversion: 1 lb = 0.45359237 kg; displayed results are rounded. This multiplication excludes connection plates, bolts, weld metal, coatings, cutting allowances and actual material variation. Use the material takeoff for your own lengths and quantities.

Shape family context

What is a American Standard channel?

A C-shape is a hot-rolled channel with one web and two flanges on the same side. Its singly symmetric, open geometry makes orientation, eccentricity, and torsion important considerations.

Learn how shape properties work

Common context

Common project roles include stair framing, edge members, lintels, equipment supports, girts, headers, and built-up or back-to-back framing.

Detailing watch

Check toe direction, gage and bolt access, flange slope where applicable, connection eccentricity, web orientation, and whether paired channels require separation or intermediate connectors.

Portable reference files

Download C15X50 your way.

Every file is generated locally in your browser from the same nominal profile and AISC v16.0 reference record.

2D profile

CAD, vector, and image

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Properties & report

Tables and portable data

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Length-based 3D

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Enter a member length in inches. Mesh files are generated from the nominal reference profile.

Member length in

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Dimensions & properties

C15X50 reference data.

Values below are derived from the AISC Shapes Database v16.0 in US customary units. A dash indicates that a property is not applicable or not included for this family.

Nominal dimensions

W: 50 lb/ft
A: 14.7 in²
d: 15 in
ddet: 15 in
bf: 3.72 in
bfdet: 3.75 in
tw: 0.716 in
twdet: 0.688 in
tf: 0.65 in
tfdet: 0.625 in
kdes: 1.44 in
kdet: 1.438 in

Centroid & detailing

x: 0.799 in
eo: 0.583 in
xp: 0.49 in
T: 12.125 in
WGi: 2.25 in

X-axis properties

Ix: 404 in⁴
Zx: 68.5 in³
Sx: 53.8 in³
rx: 5.24 in
rts: 1.17 in
ho: 14.4 in

Y- and z-axis properties

Iy: 11 in⁴
Zy: 8.14 in³
Sy: 3.77 in³
ry: 0.865 in

Torsion, warping & perimeters

J: 2.65 in⁴
Cw: 492 in⁶
PA: 39.7 in
PB: 43.4 in
PC: 33.7 in
PD: 37.4 in

Compare published reference values

C15X50 alongside nearby C records

These records share the same nominal series, outside envelope or leg arrangement, depending on the family. Peers are ordered by absolute weight difference, then listed depth and designation. The table does not rank structural performance or approve a substitution.

US customary values from the same AISC v16.0 dataset
Record	Weight (lb/ft)	Depth (in)	Area (in²)	Ix (in⁴)	Iy (in⁴)
C15X50 (this record)	50	15	14.7	404	11
C15X40	40	15	11.8	348	9.17
C15X33.9	33.9	15	10	315	8.07

Relative to C15X50, C15X40 changes nominal weight by -10 lb/ft, listed depth by 0 in, and area by -2.9 in². At the same hypothetical 20 ft length, the nominal weight difference is -200 lb.

Open these records in the full comparison tool

Compare the remaining dimensions, axis conventions, grade, availability and project requirements separately. Weight or section-property similarity does not establish matching connection geometry or member capacity.

Reference use only.

Data is derived from the AISC Shapes Database v16.0, consistent with the AISC Steel Construction Manual, 16th Edition, 1st Printing. AISC advises professional verification before use in a specific application. The downloadable DXF is a nominal reference profile and may simplify rolled fillets, flange tapers, angle radii, HSS corner radii, and other manufacturing geometry. Verify all dimensions and suitability before design, detailing, ordering, or fabrication.

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