PURPOSE: To simply and efficiently obtain crack-free products having a dense homogeneous structure with full density by sealing powder of a hardly workable alloy in a vessel made of a metal whose coefft. of thermal expansion is equal to or higher than that of the alloy and by drawing the vessel by hot extrusion.

CONSTITUTION: An alloy which is hardly or cannot be subjected to plastic working, e.g., 'Sendust(R)' is powdered and this powder 3 is filled and forced into a vessel 1 under shaking. The vessel 1 is made of a metal whose coefft. of thermal expansion is equal to or higher than that of the alloy, e.g., stainless steel. The vessel 1 is then covered with a dummy 4 made of a proper material and the dummy 4 is welded to the vessel 1. The air in the vessel 1 is exhausted from the exhaust port 2, the port 2 is sealed to form a billet and this billet is heated and hot extruded. The resulting drawn material is cut to a prescribed size and the shell parts made of stainless steel or the like are removed to obtain desired alloy products. The powder 3 is converted into a crack-free alloy ingot in the final stage of the hot extrusion and the drawn material has a homogeneous structure with 100% density.