api 5000Beware, some suppliers and manufacturers supply normal A105N 36K material flanges stamped as 3,000 or 5,000, these interconnect with API sizes (example a 2 ANSI A105 1500 class flange rated at 3,700 psi CWP is the same asThe API Slip On Flange manufactured in our factory meets the requirements of various industries such as heavy engineering, automobile, railways as well as