Pipe Roughness: Asphalted cast iron pipe to Concrete pipe (rough)

Pipe surface roughness values — absolute roughness for various pipe materials used in Moody diagram / friction factor calculations

Civil Engineeringmaterial: Asphalted cast iron pipe to Concrete pipe (rough)5 rows

material	roughness ft (ft)	roughness in (in)	roughness mm (mm)
Asphalted cast iron pipe	0.000394	0.004724	0.12
Brass tubing	0.000005	0.000059	0.0015
Cast iron pipe	0.000853	0.010236	0.26
Commercial steel pipe	0.000148	0.001772	0.045
Concrete pipe (rough)	0.006562	0.07874	2

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