Minimum forming thickness of pressure vessel shell
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The requirement in GB150 for the minimum forming thickness of pressure vessel shells is: not less than 2 mm for high-alloy steel； The definition of 150 also states that in certain industries, special containers may have wall thicknesses of less than 2 mm. As for how to interpret “certain industries” and “special containers” in the definition, can they be applied to ordinary pressure vessels?
What is stated below is clearly based on successful usage experience; generally, there is no such experience, so it cannot be used casually.
Pressure vessels that comply with GB150~!
This imposes a huge restriction! There is no theoretical basis for wall thicknesses that are below the minimum thickness!
NB/T 47052-2016 \"Simple Pressure Vessels\" specifies in 5.3.4 that for austenitic stainless steel vessels, the minimum thickness shall be not less than 1 mm; such vessels include electrically heated steam generators, small sterilizers, etc.