Spiral Wound Flange Gasket For Flange ANSI Class 150 For Pipe Size 8 in Inside Diameter 9 3/16 in Outside Diameter 11 in Thickness 1/4 in Rim Stripe Color Gray Filler Material Graphite Outer Ring Material Carbon Steel Minimum Operating Temperature 0 Degrees F Maximum Operating Temperature 932 Degrees F Spiral Winding Material Stainless Steel Spiral Winding Stainless Steel Grade 304 Inner Ring Material Stainless Steel Inner Ring Stainless Steel Grade 304