Pipe8XS 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.

Pipe8XS has a 8 5/8 in. outside diameter and a 1/2 in. nominal wall.

Also known as NPS 8 pipe (8 in. nominal), Schedule 80 (XS) wall.

At 43.4 lb per foot it is one of the 3 Pipe8 sizes, which run from 28.6 to 72.5 lb/ft.

For strong-axis bending its section modulus is Sx = 23.1 in³ and its moment of inertia Ix = 100 in⁴, with a plastic modulus Zx = 31 in³.

Detailing dimensions

Outside diameter8 5/8"
Nominal wall (t)1/2"

Section properties

Weight43.4 lb/ft
Area (A)11.9 in²
Ix100 in⁴
Sx23.1 in³
Zx31 in³
rx2.89 in
Iy100 in⁴
Sy23.1 in³
Zy31 in³
ry2.89 in
J199 in⁴

Other Pipe8 sizes

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

Pipe8STDPipe8XXS

Similar weight pipe sizes

Comparable 43.4 lb/ft sections in other pipe sizes.

Pipe10STD40.5 lb/ft · Sx 28.1 in³Pipe5XXS38.6 lb/ft · Sx 11.6 in³Pipe12STD49.6 lb/ft · Sx 41 in³Pipe6XXS53.2 lb/ft · Sx 19.2 in³Pipe14STD54.6 lb/ft · Sx 50 in³Pipe10XS54.8 lb/ft · Sx 37 in³Pipe6XS28.6 lb/ft · Sx 11.6 in³Pipe4XXS27.6 lb/ft · Sx 6.53 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 Pipe8XS cut, formed, or fabricated? Huntington Steel & Supply Co.

Browse more: Pipe · Steel Beam Size Chart

Interactive drawing