Pipe Roughness Coefficients - Fluid Flow Hydraulic and Pneumatic, Engineers Edge

Random Links

Pipe Roughness Coefficients

Pipe Material Roughness Coefficients
Pipe Material	Specific Roughness Factor, • , mm (in)	Hazen-Williams Coefficient, C	Manning Factor, n
Steel, welded and seamless	0.061 (0.0002)	140	-
Ductile Iron	0.061 (0.0002)	130	-
Ductile Iron, asphalt coated	0.12 (0.0004)	130	0.013
Copper and Brass	0.61 (0.002)	140	0.010
Glass	0.0015 (0.000005)	140	-
Thermoplastics	0.0015 (0.000005)	140	-
Drawn Tubing	0.0015 (0.000005)	-	-
Sources: Hydraulic Institute, Engineering Data Book. Various vendor data compiled by SAIC, 1998.

Share |