Basic knowledge of pressure vessels

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This post was last edited by salesment on 2011-1-11 08:58. What are the general requirements for the materials commonly used in boiler and pressure vessels? ( )⑴ It should have sufficient strength, that is, a high yield limit and strength limit, to ensure safety and cost-effectiveness ； ⑵It should possess good toughness to ensure that it does not suffer from brittle failure under external loads ； ⑶It should have good processability, including properties for cold and hot forming as well as welding properties ； ⑷It should have good low-magnification structure and surface quality; cracks and white spots are not allowed ； ⑸Materials used for high-temperature components should possess excellent high-temperature properties, including sufficient creep strength, endurance strength, and endurance plasticity, as well as good high-temperature structural stability and oxidation resistance ； ⑹Materials in contact with corrosive media should possess excellent corrosion resistance. Answer: (1,2,3,4,5,6)