Niobium and niobium alloy bar, wire material because of its high melting point, corrosion resistant, cold processing performance and other characteristics, widely used in chemical, electronics, aviation and aerospace and other fields. Niobium and niobium alloy rods are used as structural materials and all kinds of aviation engine rocket nozzle, the reactor internal components and package materials, production of nitric acid, hydrochloric acid or sulfuric acid corrosion resistance under the condition of corrosion resistant parts.