BS EN 10217-4:2019 pdf free.Welded steel tubes for pressure purposes -Technical delivery conditions. 7 Manufacturing process 7.1 Steelmaking process The steelmaking process is at the discretion of the manufacturer with the exception that the open hearth (Siemens-Martin) process shall not be employed unless in combination with a secondary steelmaking or ladle refining process. Steels shall be fully killed and contain...
BS EN 10217-3:2019 pdf free
BS EN 10217-3:2019 pdf free.Welded steel tubes for pressure purposes -Technical delivery conditions. 7.2.1 Tube manufacturing shall be as specified in Table 1. Unless Option 1 is specified, the manufacturing process and route is at the discretion of the manufacturer. Option 1: The manufacturing process and/or route from Table 1 is specified by the purchaser. Electric welded tubes shall be...