Pipe Roughness — Surface Roughness Coefficients
Surface roughness values for various pipe materials used in friction loss calculations.
piperoughness
Overview
Absolute roughness values for common pipe materials, used in friction factor calculations.
Data Table
6 rows
material |
|---|
| Drawn tubing (glass, brass, plastic) |
| Commercial steel / welded steel |
| Galvanized iron |
| Cast iron |
| Concrete |
| Wood stave |
Source: engineeringtoolbox.com
Notes
- Values are at standard conditions unless otherwise noted
- Always verify values for critical applications