L7×4×1/2 angle

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.

L7×4×1/2 has a 7 in. long leg and a 4 in. short leg, 1/2 in. thick.

At 17.9 lb per foot it is one of the 5 L7×4 sizes, which run from 13.6 to 26.2 lb/ft.

For strong-axis bending its section modulus is Sx = 5.79 in³ and its moment of inertia Ix = 26.6 in⁴, with a plastic modulus Zx = 10.2 in³.

Detailing dimensions

Long leg7"
Short leg4"
Thickness (t)1/2"
k (detailing)1"

Section properties

Weight17.9 lb/ft
Area (A)5.26 in²
Ix26.6 in⁴
Sx5.79 in³
Zx10.2 in³
rx2.25 in
Iy6.48 in⁴
Sy2.1 in³
Zy3.77 in³
ry1.11 in
J0.456 in⁴

Other L7×4 sizes

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

L7×4×3/8L7×4×7/16L7×4×5/8L7×4×3/4

All L7×4 sizes and dimensions →

Similar weight angles

Comparable 17.9 lb/ft sections in other angle sizes.

L6×4×9/1618.1 lb/ft · Sx 4.81 in³L4×4×3/418.5 lb/ft · Sx 2.79 in³L8×4×7/1617.2 lb/ft · Sx 6.59 in³L6×6×7/1617.2 lb/ft · Sx 4.06 in³L5×3-1/2×5/816.8 lb/ft · Sx 3.63 in³L6×4×1/216.2 lb/ft · Sx 4.31 in³L5×5×1/216.2 lb/ft · Sx 3.15 in³L8×4×1/219.6 lb/ft · Sx 7.48 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 L7×4×1/2 cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Angles · Steel Beam Size Chart

Interactive drawing