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New standards
This document specifies:
— steel grades and their chemical compositions;
— mechanical properties;
— dimensions and tolerances;
— requirements for inspection and testing;
— inspection documents;
— marking;
— handling and packaging.
EN 10346 specifies requirements for continuously hot-dip coated products made of low-carbon steels for cold forming, 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), zinc-magnesium alloy (ZM), aluminium-silicon alloy (AS) or aluminium (A).
It also specifies requirements 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 zinc-magnesium alloy (ZM), in thicknesses of 0,20 mm ≤ t ≤ 6,5 mm.
By agreement at the time of enquiry and order, EN 10346 applies to continuously hot-dip coated flat products of an expanded validity range defined for thicknesses t < 0,20 mm with agreed mechanical properties and test specimens, adhesion of coating and surface condition requirements. This standard is applied to strip of all widths and to sheets cut from it (≥600 mm width) and cut lengths (<600 mm width).
The products covered by EN 10346 are used where cold formability, high strength, a defined minimum yield strength or corrosion resistance are the most important factors. Corrosion resistance of the product is depending on coating type and coating thickness, hence to its mass. The products covered by this standard can be used as substrates for organic coated flat products specified in EN 10169 for building and general engineering applications.
This document applies to iron castings produced in sand or permanent moulds or by centrifugal casting, continuous casting or investment casting.
This document defines a flexible (type A) coating and a nonflexible (type B) coating. The adhesion and moisture resistance of fusion-bonded epoxy powder coatings can be enhanced by certain formulation designs. These coating enhancements typically result in a reduction of the coating’s flexibility.
This document also provides a prediction method for corrosion loss over a long period from the measurement results and a method for determining the applicability of existing and new constructing weathering steel structures.
While the form, preparation and testing of specimens of circular and rectangular cross-section are described, component testing and other specialized forms of testing are not included in this document.
NOTE 1 Fatigue tests on notched specimens are not covered by this document since the shape and size of notched test pieces have not been standardized. However, fatigue-test procedures described in this document can be applied to fatigue tests of such notched specimens.
NOTE 2 Throughout this document, the engineering stress is employed. Engineering stress is equal to the axially applied force divided by the cross-sectional area of the test specimen, S = Force/Area, [MPa], at the test temperature.
Replaced standards
By agreement at the time of enquiry and order, this European Standard is applicable to continuously hot-dip coated flat products of an expanded validity range defined for thicknesses t < 0,20mm or in thicknesses 3,0mm < t < 6,5mm 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.
This document applies to strip of all widths and to 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 this European standard.
NOTE 2 The products covered by this European Standard are used where cold formability, high strength, a defined minimum yield strength and corrosion resistance are the most important factors. Corrosion resistance of the product is proportional to the coating thickness, hence to its mass (see also 7.3.2). The products covered by this European Standard 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, this European standard is applicable to other continuously hot-dip coated hot rolled steel flat products (e.g. in accordance with EN 10149-2).
While the form, preparation and testing of specimens of circular and rectangular cross-section are described, component testing and other specialized forms of testing are not included in this document.
Drafts
NOTE General purposes include the use of stainless steels in contact with foodstuffs.
NOTE 2 General technical delivery conditions are also specified in EN 10021, in addition to the specifications of this document.
This document does not apply to components manufactured by further processing of the product forms listed above with quality characteristics altered as a result of such further processing.
NOTE 1 General purposes include the use of stainless steels in contact with foodstuffs.
NOTE 2 For general technical delivery conditions, see EN 10021.
This document does not apply to components manufactured by further processing of the product forms listed above with quality characteristics altered as a result of such further processing.
Table 1 — Overview of material standards for stainless steels
(...)
Reference data on some physical properties are given in Annex E, Tables E.1 to E.8.
Empirical formulae for steel grade microstructure classification and pitting resistance ranking are given in Annex D.
NOTE 1 A matrix that shows which steels are included in which standard is given in Annex B.
NOTE 2 General purposes include the use of stainless steels in contact with foodstuffs.
NOTE 3 Valve steels are specified in EN 10090.
NOTE 4 Steel castings are specified in various European Standards (see Bibliography).
NOTE 5 Tool steels are specified in EN ISO 4957.
NOTE 6 Welding consumables are specified in various European Standards (see Bibliography).