BACK UP FLANGE A flange is an external or internal rib or rim for strength.A flange can also be a plate or ring to form a rim at the end of a pipe, when Fakned to the pipe. MATERIAL:Stainless Steel,Brass, Bronze,Carbon Steel AND F Series. TYPES: DIN AND BRITISH STANDARD. MADE: Forged and Casting. PRESSURE:150 CLASS TO 9000 CLASS. BLIND FACE A flange is an external or internal rib or rim for strength.A flange can also be a plate or ring to form a rim at the end of a pipe, when Fakned to the pipe. A blind flange is a plate for covering or closing the end of a pipe. MATERIAL:Stainless Steel,Brass, Bronze,Carbon Steel AND F Series. TYPES: DIN AND BRITISH STANDARD. MADE: Forged and Casting. PRESSURE:150 CLASS TO 9000 CLASS RAISED FACE FLANGE A flange is an external or internal rib or rim for strength.A flange can also be a plate or ring to form a rim at the end of a pipe, when Fakned to the pipe. MATERIAL:Stainless Steel,Brass, Bronze,Carbon Steel AND F Series. TYPES: DIN AND BRITISH STANDARD. MADE: Forged and Casting. PRESSURE:150 CLASS TO 9000 CLASS WELD NECKFLANGE A flange is an external or internal rib or rim for strength.A flange can also be a plate or ring to form a rim at the end of a pipe, when Fakned to the pipe. MATERIAL:Stainless Steel,Brass, Bronze,Carbon Steel AND F Series. TYPES: DIN AND BRITISH STANDARD. MADE: Forged and Casting. PRESSURE:150 CLASS TO 9000 CLASS.