Regarding the issue of container materials that are not subject to inspection in the above category?
Thread Content
Our company manufactures a heat exchanger, and the volume of both the shell side and the tube side is less than 25L; according to the new regulations on capacity, no inspection is required. In this situation, can experts use 304 in place of 0Cr18Ni9 (old standard)?
It should be possible; if the equipment complies with clause 1.4.2 of the new regulations, it only needs to meet the general requirements of the regulations as well as the requirements for design and manufacturing approval, and there is no need to satisfy the material-related provisions in chapter 2 of the regulations
Substitution is possible, but a substitution form issued by the design department is required for it to be approved.