Because this is a withdrawn technical standard, official digital copies are typically purchased through licensed distributors:

Engineers used these "PDF blueprints" to ensure that a steam pipe wouldn't burst after ten years of service, protecting both the machinery and the people working near it. The Legacy: A Standard in Transition Though the official status of DIN 17243 is now superseded

EN 10222-2 covers "Steel forgings for pressure purposes – Part 2: Ferritic and martensitic steels with specified elevated temperature properties." While the DIN version is still referenced in legacy projects and specific regional maintenance codes, new designs typically adhere to the EN equivalent to ensure compliance with the Pressure Equipment Directive (PED). Key Technical Specifications

Extensively used for manufacturing C22.8 flanges and high-pressure pipe connectors. Replacement and Modern Equivalents