C5×9 channel

Detailing dimensions and section properties from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.

C5×9 measures 5 in. deep with a 1 7/8 in. flange and a 5/16 in. web.

At 9 lb per foot it is the heaviest of the 2 C5 sizes, which run from 6.7 to 9 lb/ft.

For strong-axis bending its section modulus is Sx = 3.56 in³ and its moment of inertia Ix = 8.89 in⁴, with a plastic modulus Zx = 4.39 in³.

Detailing dimensions

Depth (d)5"
Flange width (bf)1 7/8"
Web thickness (tw)5/16"
Avg flange thickness (tf)5/16"
k (detailing)3/4"

Section properties

Weight9 lb/ft
Area (A)2.64 in²
Ix8.89 in⁴
Sx3.56 in³
Zx4.39 in³
rx1.84 in
Iy0.624 in⁴
Sy0.444 in³
Zy0.913 in³
ry0.486 in
J0.109 in⁴

Other C5 sizes

Same nominal size, different weight — useful when you are checking a substitution or a lighter section.

C5×6.7

Similar weight channels

Comparable 9 lb/ft sections in other channel sizes.

C6×8.28.2 lb/ft · Sx 4.35 in³C7×9.89.8 lb/ft · Sx 6.07 in³C6×10.510.5 lb/ft · Sx 5.04 in³C4×7.257.25 lb/ft · Sx 2.29 in³C8×11.511.5 lb/ft · Sx 8.14 in³C4×6.256.25 lb/ft · Sx 2.1 in³C3×66 lb/ft · Sx 1.38 in³C7×12.2512.25 lb/ft · Sx 6.92 in³

Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need C5×9 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Channels · Steel Beam Size Chart

Interactive drawing