NOVELTY - The pipe element has several thermal radiation-technically effective coatings (1b,1c) that are partially provided in the exhaust gas flow-facing side (I) and the exhaust gas flow opposite side (A) of a pipe element component (1). The thermal radiation-technically effective coatings are formed using reflective material.    USE - Pipe element such as exhaust gas recirculation (EGR) element and decoupling element of exhaust system, for feeding exhaust gas stream to internal combustion engine of motor car. Can also be used in vehicle with diesel engine and vehicle with petrol engine.    ADVANTAGE - Since the thermal radiation-technically effective coatings are partially provided in the exhaust gas flow-facing side and the exhaust gas flow opposite side of pipe element component, the exhaust gas temperature is preserved effectively. Hence, even during cold start of the internal combustion engine, the engine is started effectively. The pipe element is thermally insulated, thus the heat losses of the exhaust gas stream in the pipe element is reduced, without the need of reconstructing the pipe element. Hence, the production cost and the excessive weight gain of the pipe element are reduced. The thermal radiation reflectivity of the pipe element is improved by the thermal radiation-technically effective coatings. The pipe element component is in the form of metallic corrugated hose or metallic bellow, thus, simple and efficient isolation of exhaust gas carrying components from radiant heat is achieved. The productivity of the pipe element is improved, without additional components.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method of thermally insulating pipe element.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the pipe element component.    Pipe element component (1)    Indication material (1a)    Thermal radiation-technically effective coatings (1b,1c)    Exhaust gas flow opposite side (A)    Exhaust gas flow-facing side (I)