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Reinforcing steel with improved corrosion resistance

Galvanised or stainless steels can be used to improve the corrosion resistance of steel used for the reinforcement of concrete members.

The advantage of using reinforcing steel with improved corrosion resistance is that thinner concrete cover layers are required.

Regulatory framework

DIBt grants national technical approvals (abZ) for products

  • that significantly deviate from the Technical Building Rules (cf., in particular, MVV TB, Part C 2.1.3) or
  • for which neither Technical Building Rules nor generally recognised technical rules exist.

European Technical Assessments (ETAs) can also be issued upon request.

pdf-Datei Liste der Werkkennzeichen (WKZ) (9 pages ) Stand: 25. März 2026 pdf-Datei Liste der Verarbeiterkennzeichen (VKZ) (28 pages ) Stand: 25. März 2026 pdf-Datei Betonstahlverzeichnisse (164 pages ) Stand: 29. November 2023; Das Betonstahlverzeichnis wurde durch die Listen VKZ und WKZ ersetzt.

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
  • 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.

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.

abZ+aBG

Z
new decision
E
supplement
Ä
amendment
V
renewal
G
valid until
Subject concerned Applicant Decision no. Validity
from / to
Kaltgerippter, nichtrostender Betonstahl in Ringen B500B NR, Werkstoff-Nr. 1.4571 Nenndurchmesser: 6 bis 14 mm Hagener Feinstahl GmbH Herdecker Straße 4-10 58089 Hagen Z-1.4-153 Z: 10.02.2023
G: 30.11.2027
Feuerverzinkte Betonstähle Institut Feuerverzinken GmbH Mörsenbroicher Weg 200 40470 Düsseldorf Z-1.4-165 Z: 11.12.2023
G: 01.01.2029
Nichtrostender, kaltverformter, gerippter Betonstahl in Ringen B500A NR Werkstoff 1.4362 Nenndurchmesser: 6 bis 12 mm Scheibinox OHG Max-Planck-Straße 4/6 47475 Kamp-Lintfort Z-1.4-228 Z: 24.05.2022
G: 31.05.2027
Nichtrostender, kaltverformter Betonstahl in Ringen B700B NR "Inoxripp 4486" Werkstoff 1.4482 Nenndurchmesser: 6 bis 14 mm Scheibinox OHG Max-Planck-Straße 4/6 47475 Kamp-Lintfort Z-1.4-261 Z: 28.08.2023
G: 28.08.2028
Nichtrostender, warmgewalzter, gerippter Betonstahl in Ringen B500B NR "Top12" Werkstoff-Nr. 1.4003 Nenndurchmesser: 8 bis 14 mm Steeltec AG Emmenweidstrasse 90 6020 EMMENBRÜCKE SCHWEIZ Z-1.4-266 Z: 06.08.2024
G: 31.05.2026
Nichtrostender, warmgewalzter Betonstabstahl B670B NR "Top12" Werkstoff-Nr. 1.4003 Nenndurchmesser: 16 bis 28 mm Steeltec AG Emmenweidstrasse 90 6020 EMMENBRÜCKE SCHWEIZ Z-1.4-272 Z: 08.08.2024
G: 15.02.2028
Nichtrostender, warmgewalzter Betonstahl B500B NR "INOXRIPP 4486" Werkstoff 1.4482 gemäß hinterlegter Analyse Nenndurchmesser 16 und 20 mm Scheibinox OHG Max-Planck-Straße 4/6 47475 Kamp-Lintfort Z-1.4-273 Z: 30.01.2023
G: 15.02.2028
Nichtrostender, warmgewalzter Betonstahl in Ringen B500B NR "INOXRIPP4486" Werkstoff 1.4482 gemäß hinterlegter Analyse Nenndurchmesser 8 bis 16 mm Scheibinox OHG Max-Planck-Straße 4/6 47475 Kamp-Lintfort Z-1.4-304 Z: 17.04.2023
G: 17.04.2028
Nichtrostender, kaltverformter Betonstahl in Ringen B500B NR (Werkstoff 1.4571) Nenndurchmesser: 6 bis 12 mm UAB "Litspringas" Salantu g. 8 LT-90115 PLUNGE LITAUEN Z-1.4-313 Z: 28.11.2025
G: 04.11.2030
Nichtrostender, kaltverformter Betonstahl in Ringen B700B NR (Werkstoff 1.4482) Nenndurchmesser: 6 bis 12 mm UAB "Litspringas" Salantu g. 8 LT-90115 PLUNGE LITAUEN Z-1.4-314 Z: 01.12.2025
G: 10.11.2030
Nichtrostender, kaltverformter, gerippter Betonstahl in Ringen B500B NR, Werkstoff Nr. 1.4571 Nenndurchmesser: 6 bis 14 mm Scheibinox OHG Max-Planck-Straße 4/6 47475 Kamp-Lintfort Z-1.4-50 Z: 15.07.2022
G: 31.07.2027