What is BS EN 10346 - Hot-dip coated product requirements about?
BS EN 10346 is a European standard on continuously hot-dip coating that discusses
the best procedures and specifications required for performing hot-dip coating.
BS EN 10346 specifies requirements for continuously hot-dip coated products made of low carbon steels for cold-forming, of steels for construction and steels with high proof strength for cold forming coated with zinc (Z), zinc-iron alloy (ZF), zinc-aluminium alloy (ZA), aluminium-zinc alloy (AZ), aluminium-silicon alloy (AS) or a zinc-magnesium alloy (ZM) and for continuously hot-dip coated products made of multiphase steels for cold-forming coated with zinc (Z), zinc-iron alloy (ZF), zinc-aluminium alloy (ZA) or a zinc-magnesium alloy (ZM) in thicknesses of 0,20 mm ≤ t < 3,0 mm.
By agreement at the time of enquiry and order, BS EN 10346 applies to continuously hot-dip coated flat products of an expanded validity range defined for thicknesses t < 0,20mm or in thicknesses 3,0 mm ≤ t ≤ 6,5 mm with agreed mechanical properties and test specimens, adhesion of coating and surface condition requirements.
The thickness is the final thickness of the delivered product after coating.
BS EN 10346 applies to strips of all widths and sheets cut from it (≥ 600 mm width) and cut lengths (< 600 mm width).
NOTE 1: Products coated with (pure) aluminium can also be available, but are not covered by BS EN 10346
NOTE 2: The products covered by BS EN 10346 are used where cold formability, high strength, a defined minimum yield strength and/or corrosion resistance are the most important factors. The corrosion resistance of the product is proportional to the coating thickness, hence to its mass (see also 7.3.2). The products covered by BS EN 10346 can be used as substrates for organic coated flat products specified in EN 10169 for building and general engineering applications.
NOTE 3: By agreement at the time of enquiry and order, BS EN 10346 applies to other continuously hot-dip coated hot rolled steel flat products (e.g. by EN 10149-2).
Who is BS EN 10346 - Hot-dip coated product requirements for?
BS EN 10346 on continuously hot-dip coated products is beneficial for:
- Manufacturer of continuously hot-dip coated products
- Steel Service Centre (SSC) workers
- The construction industry
- The automotive sector
Why should you use BS EN 10346 - Hot-dip coated product requirements?
Continuously hot-dip coating is a process of applying zinc onto a continuous ribbon of steel sheet as it passes through a bath of molten zinc at high speeds.
BS EN 10346 offers guidance on areas such as chemical composition and mechanical properties, types of coatings and coating mass, finishes, test specimens, surface qualities and surface condition requirements.
As a user of BS EN 10346, you can be ensured of mechanical property, chemical composition and all the requirements for hot-dip coating. With obedience and compliance to BS EN 10346, you can efficiently perform continuous hot-dip coating. BS EN 10346 helps you to prolongate the service life and to build consumer trust and confidence in the product. With BS EN 10346 you can be ensured that the products consistently meet and exceed quality assurance targets
What’s changed since the last update?
BS EN 10346:2015 supersedes BS EN 10346:2009 which is withdrawn.
- Changes to steel grades S390GD+Z, S420GD+Z and S450GD+Z for the construction industry
- Several new types of advanced high strength steel
- New coating type - zinc-magnesium based
