Special metallic materials
The construction products described here are components made of metallic materials with special properties in comparison to commonly used materials of the same type. The construction techniques described here are structural works or parts thereof assembled from these components. Please note that certain material categories, such as stainless steels, are addressed in separate pages.
The special properties may relate, amongst other things, to the chemical composition or the mechanical properties (e.g. yield strength, impact strength, Z-quality). They may also relate to properties that are relevant for processing and/or application (e.g. suitability for cold forming, durability, surface quality).
Metallic materials with weldability as a special property are usually addressed under Welded metal components
Regulatory framework
DIBt grants national technical approvals (abZ) for components (construction products) made of metallic materials with special properties, when the product
- is not covered by a harmonised standard (which is usually the case because of the special properties),
- deviates significantly from the Technical Building Rules (cf. MVV TB, Chapter C 2) or
- when neither Technical Building Rules nor generally recognised technical rules exist for the product.
European Technical Assessments (ETAs) can also be issued for these construction products.
Furthermore, DIBt grants general construction technique permits (aBG) for applications comprising components (construction products) made of metallic materials with special properties for which there are no conclusive technical rules regarding design and execution.
A European Assessment Document (EAD) adopted jointly by the European Technical Assessment Bodies (TABs) is required as a basis for issuing ETAs. If there is no EAD fully covering the construction product when the ETA is being requested, DIBt can develop one or amend an existing one.
National procedure
To prepare an abZ/aBG for your construction product, we need an application from you. We recommend that you contact us prior to doing so. Feel free to send us your enquiry informally via email to dibt(at)dibt(.)de or to the competent technical contact listed in the top right.
For a first assessment, please send us the following information:
- Description of the construction product and its intended field of use
- e.g. material, configuration, number of sizes, variants, dimensions
- e.g. use in walls, ceilings, interior construction, building services
- Description of the construction technique and its field of application
- e.g. design of walls, ceilings, elements, etc., and interaction of components
- e.g. application in foundation engineering, reinforced concrete construction, building insulation; as load-bearing or non-load-bearing component; under static and quasi-static loading; fire exposure; other environmental exposures
- Information regarding impact on regulatory concerns
- in particular structural integrity, fire protection, health and environment protection, sound insulation as well as thermal performance
- Explanation of need for an abZ/aBG
- Do you significantly deviate from the Technical Building Rules?
- Or do neither Technical Building Rules nor generally recognised technical rules exist?
- Contact details
- preferably email address and/or telephone number, as well as name, organisation/company, and postal address
We will then contact you to clarify the next steps.
If you already hold a DIBt approval and/or construction technique permit and wish to apply for an amendment, supplement, or renewal, please use the form provided below.
- pdf-Datei Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages ) Last updated: 10 April 2024; Application form
European Technical Assessment (ETA)
To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.
- pdf-Datei Form for requesting a European Technical Assessment (ETA) (2 pages ) Last updated: 11 March 2025
| Subject concerned | Applicant | Decision no. |
Validity
from / to |
|---|---|---|---|
| Spundwandprodukte aus AMLoCor Blue | ARCELORMITTAL Commercial RPS S. à r. l. 66, rue de Luxembourg 4009 ESCH-SUR-ALZETTE LUXEMBURG | Z-30.10-55 |
Z:
08.06.2022 G: 08.06.2027 |
| Profile für vorgefertigte Gerüstbauteile | Brand Infrastructure Services B.V. Rivium Quadrant 209 2909 LC CAPELLE A/D lJSSEL NIEDERLANDE | Z-30.10-75 |
Z:
24.04.2023 V: 25.11.2024 G: 13.12.2029 |
| Subject concerned | Applicant | Decision no. | Issued on |
|---|---|---|---|
| Prefabricated structural components made of steel grades Q235B, Q235D, Q345B and Q345D | ANDRITZ AG Stattegger Straße 18 8045 GRAZ ÖSTERREICH | ETA-11/0322 |
14.02.2025 |
| Hot rolled products and therewith executed structural parts made of the steel grades Q235B, Q235D, Q345B, Q345D | ALSTOM Boiler Deutschland GmbH Augsburgerstrasse 712 70329 Stuttgart DEUTSCHLAND | ETA-15/0395 |
23.07.2015 |