ASME B16 SERIES STANDARDS AND DESCRIPTION
STANDARD
NAME
DESCRIPTION
ASME B16.1
Gray
Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250
ASME B16.3
Malleable
Iron Threaded Fittings Classes 150 and 300
ASME B16.4
Gray
Iron Threaded Fittings Classes 125 and 250
ASME B16.5
Pipe
Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/
