... stainless steel blind flanges ,all sizes blind flangesNameFlangeSize1/2" to 48" DN15—DN1200ThicknessSCH5--SCH160.XXSTypeSlip-on , welding ... neck ,lap joint ,blind ,orifice ,plate ,threaded ,reducing flangesPressureSCH5--SCH160.XXSStandardANSI, ISO, JIS, DIN, GB, SH, AND HG etcMaterialcarbon steel, stainless steel ... 2000 and API strictly . stainless steel blind flanges ,all sizes blind flanges