hex nipple(Inox fitting) stainless steel hex nipple (Inox fitting) Size:1/2"---4"(DN15-DN100) Material:ASTM A351,CF8,CF8M,CF3,CF3M 1.4301,1.4306,1.4401,1.0619,304,316. Pressure:150# Threaded style:NPT,BSPT,DIN5352