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Choosing the Right Vacuum Materials

When choosing materials for vacuum systems, it’s crucial to minimize gas loads while ensuring the material’s strength. Stainless steel and aluminum are common choices, with stainless steel often preferred for its lower outgassing rates. It’s important to consider factors like surface finish, outgassing, and permeation, and to avoid materials that might release gases under vacuum. Proper selection of sealing materials is also essential to maintain vacuum integrity.