The European standard “EN 10346 Steel flat products with continuous hot-dip coating for cold forming - Technical delivery conditions” describes the requirements for continuous hot-dip coated products made from low-carbon steels, steels used for cold forming, structural steels, and cold-forming steels with high yield strength, coated with zinc, zinc-iron alloy, zinc-aluminum alloy, aluminum-zinc alloy, aluminum-silicon alloy, or zinc-magnesium alloy; and continuous hot-dip coated products made from multiphase steels, used for cold forming, coated with zinc, zinc-iron alloy, zinc-aluminum alloy, or zinc-magnesium alloy, with thicknesses ranging from 0,20 mm to 3,0 mm.
According to the agreement reached during the ordering and request process, this standard applies to flat products with continuous hot-dip coatings within an extended validity range defined for thicknesses of up to 0,20 mm or 3,0 mm to 6,5 mm. These products have agreed thicknesses regarding mechanical properties and test specimen requirements, coating adhesion, and surface condition.
Thickness is the final thickness of the product delivered after coating.
This standard applies to strips of all widths and sheets cut from them (minimum width 600 mm) and cut lengths (maximum width 600 mm).
Products coated with pure aluminum are also available, but are not covered by this standard.
Products covered by this standard are used where cold formability, high strength, defined minimum yield strength, or corrosion resistance are key factors. The corrosion resistance of the product is proportional to the coating thickness, and therefore to its mass. Products covered by this standard can be used as substrates for organically coated plain products specified in EN 10169 for building and general engineering applications.
By agreement during the request and order process, this standard also applies to other continuously hot-dip coated hot-rolled steel flat products (e.g., in accordance with EN 10149-2).
EN 10346 is a European standard specifying requirements for flat steel products manufactured using the continuous hot-dip galvanizing method. These products are coated with metals such as zinc, aluminum, or alloys to enhance corrosion resistance and durability. This standard is widely used in industries where coated steel plays a critical role, such as automotive, construction, and home appliances.
The main objective of the EN 10346 standard is to ensure the following:
This helps manufacturers and suppliers maintain compliance and safety across applications.
The EN 10346 standard covers various coating types:
This standard defines different steel grades depending on the application:
Each class has its own unique characteristics:
The EN 10346 standard specifies the coating mass, which indicates the following:
This standard also defines the following:
To ensure compliance, materials are tested according to the EN 10346 standard for the following aspects:
The application areas for EN 10346 standard steel are as follows:
The necessity of the EN 10346 standard stems from the critical role that coated steel plays in safety, durability, and large-scale production. Without such a standard, industries face inconsistencies, failures, and higher costs. This standard is considered important for the following reasons:
Without this standard, steel can rust prematurely or the product life becomes unpredictable. This is especially important in the automotive and construction industries, where exposure to moisture, salt, and chemicals is common.
Without the EN 10346 standard, engineers cannot rely on material properties, or parts may fail during forming, welding, or use.
This provides the following:
This standard provides structural reliability and resistance to environmental damage.
This is very important for automotive panels and appliance housings.
In short, the EN 10346 standard ensures that coated steel is reliable, durable, and safe in all applications and forms the basis for:
In conclusion, the EN 10346 standard is a critical standard for coated steel products, ensuring they meet stringent requirements in terms of performance, durability, and safety. It plays a vital role in industries where corrosion resistance and formability are essential.
For many years, our organization, with its competent and experienced staff, has been understanding the needs of its clients, providing the advanced testing services they require, and assisting them in the establishment, implementation, and improvement of management systems. Within this framework, we also provide testing services in accordance with the EN 10346 standard.
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