Home / Pipe / 4" Schedule 40 Steel
Pipe Specifications

4" Schedule 40 Steel

Material: Steel Sch 40 | Uses: Major pipelines, large diameter

Nominal
4"
Actual OD
4.500"
Actual ID
4.026"

Good to know

Same as 3" — expect grooved couplings or welded joints rather than NPT threading once you're at 4" nominal.

Other pipe sizes

EXPLORE MORE PIPE DIMENSIONS
1/2" PVC 3/4" PVC 1" PVC 1½" PVC 2" PVC 1/2" Copper (Type M) 3/4" Copper (Type M) 1" Copper (Type M) 1/2" Schedule 40 Steel 3/4" Schedule 40 Steel 1" Schedule 40 Steel 1½" Schedule 40 Steel 2" Schedule 40 Steel 3" Schedule 40 Steel 4" Schedule 40 Steel 3/8" PEX 1/2" PEX 3/4" PEX 1" PEX 1½" ABS 2" ABS 3" ABS 4" ABS

Browse by category

EXPLORE LUMBER & FASTENERS
← Back to All Products