GB 150.3 specifies the design requirements for the basic pressure parts of pressure vessels.
This Part is applicable to the design calculation of cylinders and spherical shells under internal pressure, cylinders and spherical shells under external pressure, head, openings and reinforcements, and flanges.
This Part provides the basic design requirements for the noncircular cross section vessel (Normative A), flat steel ribbon wound cylinders (Normative B), common hermetically sealed structures (Informative C) and structures of welding joints (Informative D).
This Part also provides the basic design requirements for the low temperature pressure vessels (Normative E).
