We can supply a complete range of ASME B16.5:2017 class-300 raised face carbon steel blank flanges from stock, this includes flanges in sizes between 1/2" and 10" nominal bore.
All of our class 300 blank flanges come with a 300 psi (20 bar) pressure rating, a raised face and have been manufactured from black (self-colour) ASTM A105 forged carbon steel, they're also available with full 3.1 mill test certification on request which ensures maximum traceability. This type of pipe flange is used to blank off the end of a pipeline.