Pipe12XS pipe

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.

Pipe12XS has a 12 3/4 in. outside diameter and a 1/2 in. nominal wall.

Also known as NPS 12 pipe (12 in. nominal), extra strong (XS) wall.

At 65.5 lb per foot it is one of the 3 Pipe12 sizes, which run from 49.6 to 126 lb/ft.

For strong-axis bending its section modulus is Sx = 53.2 in³ and its moment of inertia Ix = 339 in⁴, with a plastic modulus Zx = 70.2 in³.

Detailing dimensions

Outside diameter12 3/4"
Nominal wall (t)1/2"

Section properties

Weight65.5 lb/ft
Area (A)17.5 in²
Ix339 in⁴
Sx53.2 in³
Zx70.2 in³
rx4.35 in
Iy339 in⁴
Sy53.2 in³
Zy70.2 in³
ry4.35 in
J678 in⁴

Other Pipe12 sizes

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

Pipe12STDPipe12XXS

Similar weight pipe sizes

Comparable 65.5 lb/ft sections in other pipe sizes.

Pipe16STD62.6 lb/ft · Sx 65.9 in³Pipe18STD70.7 lb/ft · Sx 84 in³Pipe14XS72.2 lb/ft · Sx 62.9 in³Pipe8XXS72.5 lb/ft · Sx 35.8 in³Pipe10XS54.8 lb/ft · Sx 37 in³Pipe14STD54.6 lb/ft · Sx 50 in³Pipe6XXS53.2 lb/ft · Sx 19.2 in³Pipe20STD78.7 lb/ft · Sx 104 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 Pipe12XS cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Pipe · Steel Beam Size Chart

Interactive drawing