A Stainless Steel 316 RTJ (Ring Type Joint) gasket is similar to the Stainless Steel 304 RTJ gasket but made from a different stainless steel....
https://www.brightonsteel.com/stainless-steel-astm-a403-wp316-rtj-gasket-manufacturer.html

A36 and S275JR are two commonly used grades of steel for structural applications. Let’s discuss each grade and their corresponding sheets: A36 Sheets: A36 is....
https://www.brightonsteel.com/carbon-steel-a36-s275jr-sheet-plate-manufacturer.html