... accordance with JPI-7S23, ANSI B16.20 and API 6A used on the ring type joint flanges specified in JPI-7S ... alloy items.They are used to stand high pressure and temperatures and they are employed where corrosive agents are present. These gaskets are designed in oval ... B16.20 7.Material:carbon steel,soft iron,inconel600.M-400,C-276,SS316,SS3048.Application:vale,gate,flange,oil&gas ...