Ring Flange Gasket Gasket Material Graphite Insert Material 316 Stainless Steel For Pipe Size 6 in For Flange ANSI Class 300 Binder Material None Color Gray Inside Diameter 6 5/8 in Minimum Operating Temperature -400 Degrees F Maximum Operating Temperature 975 Degrees F Outside Diameter 9 7/8 in Thickness 1/8 in Gasket Type Ring Gasket Metal Detectable Gasket No Included Fasteners Not Applicable Hardness Not Rated Includes Mounting Hardware No X-Ray Detectable No