... :R11-105,RX20-215,BX150-303,Inch1/2"-24" Ring joint gasket (RTJ gasket) are manufactured in accordance with JPI-7S23 ... B16.20 and API 6A used on the ring type joint flanges specified in JPI-7S-15, ANSI B16.5, API ... -400,C-276,SS316,SS3048.Application:vale,gate,flange,oil&gas industry, 9.Hardness and TemperatureMaterialMax Hardness(HB)Max Temperature(degrees ...