Hazen-Williams Coefficient Table

Written by Jerry Ratzlaff on . Posted in Tables

 

MaterialHazen Williams Coefficient
Aluminum 130 - 150
Asbestos Cement 120 - 150
Asphalt-lined iron or steel 140
Brass 130
Cast Iron, cement lined 140
Cast Iron, coated 110 - 140
Cast Iron, new unlined 130
Cast Iron, old unlined 40 - 120
Cast Iron, uncoated 100 - 140
Cast Iron, 10 years old 107 - 113
Cast Iron, 20 years old 89 - 100
Cast Iron, 30 years old 75 - 90
Cast Iron, 40 years old 64 - 83
Cement lining 140
Concrete 100 - 140
Concrete, old 100 - 110
Copper 130 - 140
Corrugated Metal Pipe 60
Corrugated Steel 60
Deteriorated old pipes 60 - 80
Ductile Iron 120 - 145
Fiberglass 150
Galvanized Iron 100 - 120
Glass 130
Lead 130
Polyethylene 140
PVC, PE, GRP 120 - 150
Steel, new unlined 120
Steel, 15 years 200
Steel, riveted joints 95 - 110
Steel, welded joints 100 - 140
Steel, welded joints, lined 110 - 140
Steel, welded or steamless 100 - 120
Tin 130
Wood Stave 110

 

 

Tags: Equations for Fluid Tables