For the heating pipe of the corrugated metal bellows material, with the exception of the working medium, temperature and external environment should be considered, should also consider the possibility of stress corrosion, the water treatment chemical and pipeline cleaning treatment of the material, and on this basis, combine with corrugated metal bellows of welding, forming and material performance to price ratio, optimized economic and practical production of corrugated metal bellows.
In general, the material used for the corrugated belows shall meet the following conditions:
(1) good plasticity, easy processing of corrugated metal bellows forming, and through the subsequent processing technology (cold hardening, heat treatment, etc.) to obtain sufficient hardness and strength.
(2) high elastic limit, tensile strength and fatigue strength, to ensure the normal operation of bellows.
(3) good welding performance, to meet the requirements of the welding process in the production process of corrugated pipe.
(4) good corrosion resistance, to meet the requirements of corrugated pipe in different environments.
