Din 267 Part 9 Pdf

DIN 267-9 (often cited in its 1979-08 version) defines the requirements for electroplated protective metallic coatings on fasteners, particularly screws and nuts. It is important to note that while this standard provides the framework for plating quality and thickness, is the modern international equivalent frequently used today.

The standard establishes guidelines to ensure that this coating does not compromise the mechanical integrity or the dimensional accuracy of the thread. 2. Key Scope and Application

: The official publisher of DIN standards in Germany.

: While mainly for bolts and nuts, it applies to various mechanical fasteners requiring electroplating . din 267 part 9 pdf

The DIN 267 Part 9 standard serves as a foundational text for understanding the interplay between chemistry and mechanical engineering in fastening technology. While is the modern equivalent for new designs, the legacy DIN standard remains vital for interpreting historical technical drawings, calculating thread clearance tolerances, and understanding baseline protocols for hydrogen de-embrittlement baking.

The standard devoted significant attention to this issue, recognizing that the electroplating process (electrolytic deposition) could introduce hydrogen into the steel. The key provisions included:

You cannot use DIN 267-9 for new engineering designs. It is an . Old Standard Modern Replacement DIN 267 Part 9 ❌ Withdrawn / Superseded DIN 267-9 (often cited in its 1979-08 version)

Burnishing or thermal shock tests ensure the plated layer does not peel or blister under stress.

Other parts of the DIN 267 series (such as Part 1, Part 3, Part 4) were also withdrawn and replaced by various ISO standards, including DIN ISO 8992 for general requirements, DIN EN ISO 898 for mechanical properties, and DIN EN ISO 6157 for surface discontinuities.

The standard focuses on ensuring that the addition of a protective layer does not interfere with the mechanical function of the fastener. The DIN 267 Part 9 standard serves as

When dealing with industrial fastening systems, ensuring longevity and corrosion resistance is paramount. is a foundational German engineering standard that dictates the technical delivery conditions for mechanical fasteners with electroplated coatings .

Even though it is withdrawn, understanding DIN 267 Part 9 is essential for:

The degree of gloss and any after-treatment like passivation or chromating. Hydrogen Embrittlement:

DIN 267 Part 9 establishes strict limits on the maximum coating thickness based on the fundamental deviation of the thread.