Abstract: A metal mold for centrifugal casting, the exterior surface of which is provided with a coating in the form of an iron oxide film or a film containing calcium as the main ingredient. Such a coating is preferably formed so as to substantially cover the entire exterior surface. If the coating is an iron oxide film, it is preferable for the film to contain triiron tetraoxide. If the coating is a film containing calcium as the main ingredient, it is preferable for the thickness thereof to be at most 0.4 mm. Furthermore, among films containing calcium as the main ingredient, it is preferable for said main ingredient to be calcium carbonate. By configuring a mold for centrifugal casting in such a manner, the exterior surface of the metal mold can be uniformly cooled, and deformation of the mold can be suppressed.

Abstract: The tubular die of a centrifugal casting device of GNo.30 or above is employed suitably and powder is introduced while rotating, and an outer tubular body composed of that powder is provided. Subsequently, molten is introduced to the inner circumferential wall side of the outer tubular body while sustaining rotation of the tubular die thus forming an inner tubular body. The outer tubular body functions as a cooling metal (chiller) when the molten is cooled and solidified. In place of the outer tubular body composed of the powder, molten may be used for forming an outer tubular body or an outer tubular molding molded previously into tubular shape may be employed.