Ring joint gaskets ASME B16.20 Mat NICKEL ALLOY INCONEL 825 Hardness, maximum 160 HB Type OVAL Ring identif no. R24 Size, flange Inch 2 in Pressure designation CL 1500 50 pcs. Ring joint gaskets ASME B16.20 Mat NICKEL ALLOY INCONEL 825 Hardness, maximum 160 HB Type OVAL Ring identif no. R24 Size, flange Inch 2 in Pressure designation CL 1500 20 pcs. Ring joint gaskets ASME B16.20 Mat INCONEL 825 Type OVAL Service SOUR Ring identif no. R79 Size, flange Inch 24 in Pressure designation CL 1500 Service requirement NACE MR0175 50 pcs. Ring joint gaskets ASME B16.20 Mat INCONEL 825 Type OVAL Service SOUR Ring identif no. R77 Size, flange Inch 24 in Pressure designation CL 600 Service requirement NACE MR0175 50 pcs. Ring joint gaskets ASME B16.20 Mat NICKEL ALLOY INCONEL 825 Hardness, maximum 160 HB Type OVAL Ring identif no. R78 Size, flange (inch 24 in Pressure designation CL 900 70 pcs.