We can produce all kinds of API 6A flange for wellhead use, the material size and the connection way of the flange can be choosed by the customer. The common connection is as the following:

WELLHEAD SOCKET WELDING FALNGE

WELLHEAD WELDING NECK FLANGE

WELLHEAD THREADED FLANGE

We can make the flange as the client's requirement! 

flange 5000psi