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National technical approval / General construction technique permit No. Z-30.11-51 Page 2 of 8 | 17 September 2019 I GENERAL PROVISIONS 1 This decision confirms the fitness for use and application of the subject concerned within the meaning of the Building Codes of the federal states (Landesbauordnungen). 2 This decision does not replace the permits, approvals and certificates required by law for carrying out construction projects. 3 This decision is granted without prejudice to the rights of third parties, in particular private property rights. 4 Notwithstanding further provisions in the "Special Provisions", copies of this decision shall be made available to the user and installer of the subject concerned. The user and installer of the subject concerned shall also be made aware that this decision must be made available at the place of use or place of application. Upon request, copies of the decision shall be provided to the authorities involved. 5 This decision shall be reproduced in full only. Partial publication requires the consent of DIBt. Texts and drawings in promotional material shall not contradict this decision. In the event of a discrepancy between the German original and this authorised translation, the German version shall prevail. 6 This decision may be revoked. The provisions contained therein may subsequently be supplemented and amended, in particular if this is required by new technical findings. 7 This decision is based on the information and documents provided by the applicant. Alterations to this basis are not covered by this decision and shall be notified to DIBt without delay. 8 The general construction technique permit included in this decision also serves as a national technical approval for the construction technique. Translation authorised by DIBt
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National technical approval / General construction technique permit No. Z-30.11-51 Page 3 of 8 | 17 September 2019 II SPECIAL PROVISIONS 1 Subject concerned and field of use and/or application This decision covers steel flat products which have been continuously hot-dip coated using "Magnelis®", a metallic coating. The flat products are usually supplied in the form of coils to downstream processing operations. The field of application for the subject of approval is the production of corrosion-protected thin-walled load-bearing or non-load-bearing members by means of cold forming. The members can be used in accordance with the protective effect of the coating in interior or exterior areas. The subject of approval can also be used as a substrate for additional organic coating systems. The national technical approval covered by this decision does not regulate the members manufactured from the steel strips. 2 Provisions for the construction product(s) 2.1 2.1.1 2.1.2 Properties and composition Materials and dimensions of the flat products The steel grades stated in the following may be used in the manufacture of the flat products. The provisions and requirements of DIN EN 103461, Clauses 4 and 7, shall apply. a) Low carbon steels for cold forming: DIN EN 103461, Table 1 b) Steels for construction: DIN EN 103461 , Table 2, to S450GD a) Steels with high proof strength for cold forming: DIN EN 103461, Table 3, to HX420LAD The sheet thicknesses of the uncoated flat products (intermediate products) shall be between 0.5 mm and 6.0 mm. The mechanical properties of the finished hot-dip coated flat products shall meet the requirements set out in DIN EN 103461, Tables 7, 8 or 9. DIN EN 101432 shall apply to the tolerances on dimensions and shape of the hot-dip coated flat products, irrespective of fact that the ZM coatings are not listed in the field of application of the standard. Materials and dimensions of the coatings "Magnelis®" shall be categorised as a zinc-magnesium coating (ZM) in accordance with DIN EN 103461, Clause 3.4. More detailed information about the composition of the molten bath is deposited with DIBt. The standard versions of "Magnelis®" are listed in Table 1. Regarding the coating mass, DIN EN 103461, Clauses 3.16 and 7.9, apply mutatis mutandis. The density of the coating can be assumed to be dMagnelis = 6.2 g/cm³. 1 DIN EN 10346:2015-10 Continuously hot-dip coated steel flat products for cold forming Technical delivery conditions 2 DIN EN 10143:2006-09 Continuously hot-dip coated steel sheet and strip Tolerances on dimensions and shape Translation authorised by DIBt
