ASTM A860 WPHY 42, 52, 60, 65, 70 Pipe Fittings
ASTM A860 WPHY 52, 60, 65, 70 Pipe Fittings. ASTM A860 is the standard specification for wrought high-strength ferritic steel butt-welding. The grade WHPY 42, 46, 52, 56, 60, 65, 70 corresponding to pipe standard of API 5L X42 to X70, used for oil and gas transmissions.