Pipe Friction Loss

Pipe Material or Surface Coating C Range C New C
High Low Clean Des
Acrylonitrile Butadiene Styrene (ABS) 150 120 140 130
Aluminum 150 130 … …
Asbestos Cement 160 140 150 140
Asphalt Lining 140 130 … …
Brass 150 120 140 130
Brick Sewer … … … 100
Cast Iron, asphalt coated 140 90 130 100
Cast Iron, bitumastic enamel lined 150 140 … …
Cast Iron, bitumastic lined 160 130 150 140
Cast Iron, cement lined 150 100 140 120
Cast Iron, new, unlined 150 110 130 120
Cast Iron, old, unlined 120 60 … 80
Cast Iron, sea-coated 140 100 130 120
Cement Lining 140 130 … …
Concrete 150 90 120 100
Concrete Lined, steel forms 140 … … …
Concrete Lined, wooden forms 120 … … …
Concrete, old 110 100 … …
Concrete, steel forms 140 … … …
Concrete, wooden forms 120 … … …
Copper 150 120 140 130
Ductile Iron, cement lined 140 100 … 120
Fiber 150 140 … …
Galvanized Iron 150 120 140 130
Glass 120 110 … 130
Lead 150 120 140 130
Plastic 150 120 140 130
Polyethylene 150 140 150 140
Polyvinyl Chloride (PVC) 150 120 140 130
Steel, coal-tar enamel lined 150 140 … …
Steel, corrugated … … 60 60
Steel, interior riveted, no projecting rivets

projecting girth and horiz. rivets
projecting girth rivets
 140
…
…		 100
…
…		 130
120
130		 110
110
100
Steel, welded and seamless 150 110 140 110
Tin 150 120 140 130
Vitrified Clay 140 100 … 110
Wrought Iron, plain 150 80 130 100