A gasket is a sealing part that fills the gap between two mating surfaces to allow the two workpieces to engage each other without leakage even when subjected to compressive forces. The gasket can fill some irregularities on the surface, thus allowing for a slight defect in the joint surface of the workpiece. The gasket is generally formed by cutting a sheet of paper. Gaskets for some special applications (such as gaskets used in high pressure steam systems) may have asbestos. However, due to the possible health risks of exposure to asbestos, it is practical to use asbestos-free gasket materials [1] In general, the ideal gasket material is a material that can be deformed to a certain extent, so it can be deformed during assembly to fill the corresponding space (including some slight irregularities), and some gaskets need to be directly sealed on the surface. The agent can make the gasket work normally. Some of the gaskets used in the pipeline are made entirely of metal. The seat surface is used to achieve the seal. The spring characteristics of the metal itself (the stress will be close to the material's relief strength σy, but not exceeded). This is common in some ring joints (RTJ) or metal shim, known as R-con and E-con compression joints