BS EN 10346:2015 – TC:2020 Edition
$246.62
Tracked Changes. Continuously hot-dip coated steel flat products for cold forming. Technical delivery conditions
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 99 |
This European Standard specifies requirements for continuously hot-dip coated products made of low carbon steels for cold forming, of steels for construction, of steels with high proof strength for cold forming and coated with zinc (Z), zinc-iron alloy (ZF), zinc-aluminium alloy (ZA), aluminium-zinc alloy (AZ), aluminium-silicon alloy (AS) or 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 zinc-magnesium alloy (ZM) in thicknesses of 0,20 mm ? t < 3,0 mm. 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).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 57 | Contents Page |
| 60 | European foreword |
| 61 | 1 Scope 2 Normative References |
| 62 | 3 Terms and definitions |
| 64 | 4 Classification and designation 4.1 Classification 4.1.1 General 4.1.2 Low carbon steels for cold forming |
| 65 | 4.1.3 Steels for construction 4.1.4 Steels with high proof strength for cold forming 4.1.5 Multiphase steels for cold forming 4.2 Designation 4.2.1 Steel names 4.2.2 Steel numbers 5 Information to be supplied by the purchaser 5.1 Mandatory information |
| 66 | 5.2 Options |
| 67 | 6 Manufacturing and processing 6.1 Manufacturing 6.2 Processing 6.2.1 Ageing 6.2.2 Coating appearance 6.2.3 Surface protection 7 Requirements 7.1 Chemical composition |
| 68 | Table 1 — Chemical composition (cast analysis) of low carbon steels for cold forming Table 2 — Chemical composition (cast analysis) of steels for construction |
| 69 | Table 3 — Chemical composition (cast analysis) of steels with high proof strength for cold forming |
| 70 | Table 4 — Chemical composition (cast analysis) of multiphase steels for cold forming (cold rolled products) |
| 71 | Table 5 — Chemical composition (cast analysis) of multiphase steels for cold forming (hot rolled products) |
| 72 | Table 6 — Permissible deviations of the product analysis from specified limits on cast analysis given in Tables 1 to 5 7.2 Mechanical properties 7.2.1 General |
| 73 | 7.2.2 Low carbon steels for cold forming |
| 74 | Table 7 — Mechanical properties (transverse direction) of low carbon steels for cold forming |
| 75 | 7.2.3 Steels for construction Table 8 — Mechanical properties (longitudinal direction) of steels for construction 7.2.4 Steels with high proof strength for cold forming |
| 76 | Table 9 — Mechanical properties (transverse direction) of steels with high proof strength for cold forming |
| 77 | 7.2.5 Multiphase steels for cold forming Table 10 — Mechanical properties (longitudinal direction) of multiphase steels for cold forming (cold rolled products) |
| 78 | Table 11 — Mechanical properties (longitudinal direction) of multiphase steels for cold forming (hot rolled products) 7.3 Type of coatings and coating mass |
| 79 | Table 12 — Coating mass |
| 81 | 7.4 Coating finish 7.4.1 General 7.4.2 Zinc coated products (Z) 7.4.2.1 Normal spangle (N) 7.4.2.2 Minimized spangle (M) 7.4.3 Zinc-iron alloy coated products (ZF) 7.4.4 Zinc-aluminium coated products (ZA) 7.4.5 Zinc-magnesium coated products (ZM) 7.4.6 Aluminium-zinc coated products (AZ) 7.4.7 Aluminium-silicon coated products (AS) |
| 82 | 7.5 Surface quality 7.5.1 General Table 13 — Available coatings, finishes and surface qualities for zinc coatings (Z) Table 14 — Available coatings, finishes and surface qualities for zinc-iron alloy coatings (ZF) |
| 83 | Table 15 — Available coatings, finishes and surface qualities for zinc-aluminium coatings (ZA), zinc-magnesium coatings (ZM), aluminium-zinc coatings (AZ) and aluminium-silicon coatings (AS) |
| 84 | 7.5.2 Types of surface qualities 7.5.2.1 As coated surface (A) 7.5.2.2 Improved surface (B) 7.5.2.3 Best quality surface (C) 7.5.3 Roughness 7.6 Surface treatment (surface protection) 7.6.1 General |
| 85 | 7.6.2 Chemical passivation (C) 7.6.3 Oiling (O) 7.6.4 Chemical passivation and oiling (CO) 7.6.5 Phosphating (P) 7.6.6 Sealing (S) 7.7 Coil breaks and bends (kinks) 7.7.1 Freedom from coil breaks |
| 86 | 7.7.2 Bends (kinks) by winding on coiler drums 7.8 Stretcher strains 7.9 Coating mass 7.10 Adhesion of coating 7.11 Surface condition 7.12 Tolerances on dimensions and shape |
| 87 | 7.13 Suitability for further processing 8 Inspection 8.1 Types of inspection and inspection documents 8.2 Test units 8.3 Tests to be carried out 8.4 Sampling |
| 88 | Figure 1 — Position of the samples for determining the coating mass 8.5 Test methods 8.5.1 Tensile test 8.5.2 Plastic strain ratio and hardening exponent 8.5.3 Bake Hardening index 8.5.4 Surface inspection |
| 89 | 8.5.5 Coating mass 8.5.5.1 General 8.5.5.2 Special method for determination of the mass of the Fe-Al-Si alloy layer 8.6 Retests 9 Marking 10 Packing |
| 90 | 11 Storage and transportation |
| 91 | Annex A (normative) Reference method for determination of the zinc, zinc-iron, zinc-aluminium, zinc-magnesium and aluminium-zinc coating mass A.1 Principle A.2 Reagent and preparation of the solution A.2.1 Reagent A.2.2 Preparation of the solution A.3 Apparatus A.4 Procedure |
| 92 | Annex B (normative) Reference method for determination of the aluminium-silicon coating mass B.1 Principle B.2 Reagents B.3 Procedure B.3.1 Samples B.3.2 Method B.4 Evaluation |
| 93 | Annex C (normative) Method for determination of the mass of the Al-Fe-Si alloy layer C.1 Principle C.2 Reagents C.2.1 Tin (II) chloride solution C.3 Procedure C.3.1 Removal of the non-alloy layer C.3.2 Determination of alloy layer C.4 Evaluation |
| 94 | Annex D (informative) Technical changes from the previous edition D.1 Introduction D.2 Technical changes |
| 96 | Bibliography |
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BS EN 10346:2015
Continuously hot-dip coated steel flat products for cold forming. Technical delivery conditions Published By Publication…
