Abstract: A pipe flange (10) comprising: a circular flange plate (12) having a central (hub 14) for attaching the flange plate (12) to an end of a pipe (16), the hub (14) having a first annular portion (18) with a first inside diameter adapted to closely receive the outside diameter of the end of the pipe (16) therein. The pipe flange (12) also comprises a second annular portion formed by an annular lip (20) with a second inside diameter substantially equal to or greater than the inside diameter of the end of the pipe wherein, in use, a weld can be applied around the inside circumference of the hub (14) between the annular lip (20) and the end of the pipe.