This table lists every steel grade (e.g., P355NH, 16Mo3, X5CrNi18-10) that is approved for pressure vessel construction. It specifies the melting process (basic oxygen furnace or electric) and the required deoxidation method.

The AD 2000 regulations are widely used by manufacturers to demonstrate compliance with the European Pressure Equipment Directive (PED 2014/68/EU). Specifically, Merkblatt W1 deals with the material requirements for steel used in the construction of pressure vessels.

The document outlines the technical delivery conditions for materials, ensuring they possess the necessary mechanical properties and chemical composition to withstand internal pressure. Key aspects covered in W1 include:

If you want, I can search for free downloads, official publishers, or a specific edition/year — tell me which country or language you prefer and I’ll look it up.

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Some standards platforms (e.g., IHS Markit, Techstreet, or DIN Media) occasionally offer trial access to their entire database for 24–48 hours to corporate clients. This is rarely available to individuals, but if you work for an engineering firm, ask your technical information officer to arrange a demo.

Before hunting for a free copy, one must understand the document’s value. The AD 2000 Code is a harmonized standard supporting the European Pressure Equipment Directive (PED) 2014/68/EU. Merkblatt W1 is not just a recommendation; it is frequently invoked by notified bodies and regulatory authorities to demonstrate compliance with essential safety requirements.

Key technical provisions of W1 include:

Without access to Merkblatt W1, a manufacturer cannot properly qualify steel plates for a pressure vessel intended for the EU market. Hence, the demand for a free version is high, especially among small workshops, freelancers, and engineering students.

The search volume for "free" versions exists for three simple reasons: