Are you an existing customer or do you want to contact us in a different matter? We look forward to hearing from you and will get back to you as soon as possible.

Alternatively, you may want to contact directly one of our locations or our holding company.

    Fields marked with * are mandatory fields.

    Factory *

    Reason for your request *


    Standorte Coatinc Bochum Coatinc Rhein-Main Coatinc Peine Coatinc Becker Saarlouis Coatinc Siegen Coatinc PreGa Coatinc24 Coatinc Würzburg Coatinc Ninove Coatinc NinoCoat Zinkpower Malacky Coatinc MX de SA CV California Galvanizing & Steel Structures Coatinc Alblasserdam Coatinc24 Amsterdam Coatinc Nederland Coatinc De Meern Coatinc Groningen Coatinc Groningen Poedercoat Coatinc Mook Coatinc Prega NL Coatinc Roermond Coatinc Anox Zinkpower Promptus Zinkpower Ostrava Zinkpower Roudnice Marmara-Siegener Galvaniz Marmara-Siegener Galvaniz Marmara-Siegener Galvaniz Rezinal Coatinc Lenssen ESP Pulverbeschichtung ESP Pulverbeschichtung

    For enquiries regarding marketing or press matters, please use the following contacts:


    The Coatinc Company Holding GmbH
    Hüttenstraße 45
    57223 Kreuztal

    Your contact person:
    Anna-Maria Prax


    The Coatinc Company Holding GmbH
    Steinstraße 5
    57072 Siegen, Germany
    Phone: +49 271 43478
    Fax: +49 271 46869

    Your contact person:
    Petra Böhmer


    The Coatinc Company Holding GmbH

    Carolinenglückstraße 6-10
    44793 Bochum, Germany
    Phone: +49 234 52905-0
    Fax: +49 234 52905-15

    Appearance of galvanized steel trade products

    What influence do so-called alloy constituents have on the optic of galvanized steel trade products?

    The optic of galvanized steel is significantly dependent on silicon and phosphor. If optical and aesthetic demands on the surface finish are high, steel from group 1 (so-called inert range) is recommended. In order to achieve standard corrosion protection, steel from group 3 (sebisty range) is recommended. The two remaining groups lead to not insignificant limitations in the surface finish and also particularly effect the resistance to mechanical demands which is typical for hot-galvanising (mixed crystal – iron-zinc alloy layer).

    Where does the orange peel effect on galvanised steel trade products come from?

    What effect does the material or wall width have on the appearance? The greater the material and/or wall width, the longer the temperature of the galvanising bath is stored in the workpiece. The components therefore continue to alloy chemically and physically which defines the visual appearance. The less material used and/or the thickness of the selected steel (here in particular for class 1, inert range) the more possible it is to produce a more sophisticated surface finish. These are normally materials originating from the quality range S235.

    How does the appearance change on bright steel?

    In addition to the alloy constituents silicon and phosphor, which fundamentally define the appearance, phosphates, which occur as aid in drawn materials, also play a substantial role. Phosphates normally generate the so-called orange peel effect which often occurs particularly in hollow profiles.

    Additional information: the above-mentioned problem can be deactivated by using aluminium killed materials. However these materials are normally uneconomical.

    Recent Posts

    Start typing and press Enter to search