PURPOSE: To form a special shaped pipe having a thin wall thickness, light weight and defectless quality by vertical centrifugal casting with high efficiency and high yield by disposing casting molds on the concentrical circle around a sprue, providing riser parts on the runner side and performing casting under the effect of centrifugal force.

CONSTITUTION: Molds corresponding to a desired special shaped pipe are used as casting mold bodies 3 and a molten metal is cast through a sprue 2 into said molds under rotation of a turntable 1 with a vertical type centrifugal casting device which is disposed with the bodies 3 on the concentrical circle centering at the sprue 2 positioned at the center of rotation of the table 1 within a molding flask 7 on the table 1 and is provided with risers 5 to runners 4 communicating the sprue 2 and the mold bodies 3. The molten metal cast into the molds flow satisfactorily in the runners 4 and the bodies 3 receiving the pressurizing effect of the centrifugal force generated by the rotative driving. The special shaped pipe product having good quality is thus efficiently obtd.