BS EN 60404-8-6:2017
$142.49
Magnetic materials – Specifications for individual materials. Soft magnetic metallic materials
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 26 |
This part of IEC 60404 specifies the general requirements, magnetic properties, geometric characteristics and tolerances as well as inspection procedures for pure iron, silicon-iron, nickel-iron and cobalt-iron. The materials are in the form of bar, billet, sheet, strip or wire. The alloys covered correspond to those defined by classes A, C1, C2, E1 to E4 and F1 to F3 in IEC 60404‑1 .
Magnetic materials used primarily for relays, iron and steel products, classified only by coercivity, are covered in IEC 60404‑8‑10 . IEC 60404‑8‑10 is less restrictive in terms of magnetic properties than the irons (class A) and the silicon steels (classes C21 and C22) specified in this standard, but it gives more comprehensive dimensional tolerances.
Non-oriented and oriented silicon steels (C21 and C22) for industrial power frequency applications, classified by specific total loss, are covered in IEC 60404‑8‑3 , IEC 60404‑8‑4 and IEC 60404‑8‑7 .
Non-oriented and oriented thin magnetic materials for use at medium frequencies, classified by specific total loss, are covered in IEC 60404‑8‑8 .
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | English CONTENTS |
| 9 | FOREWORD |
| 11 | 1 Scope 2 Normative references |
| 12 | 3 Terms, definitions and abbreviations 3.1 Terms and definitions |
| 13 | 3.2 Abbreviations for test specimens 4 Classification 4.1 General |
| 14 | 4.2 Alloy class A (irons) 4.3 Alloy class C (silicon steels) 4.4 Alloy class E (nickel-iron alloys) 4.5 Alloy class F (cobalt-iron alloys) 5 Designation 6 General requirements 6.1 Chemical composition and production process |
| 15 | 6.2 Delivery condition 6.2.1 General 6.2.2 Form of supply 6.2.3 Surface condition 7 Technical requirements 7.1 Magnetic properties |
| 16 | 7.2 Geometric characteristics and tolerances 7.2.1 Flat products: sheet, plate and strip 7.2.2 Cold-worked bar, rod and wire 7.2.3 Hot-finished bar 8 Inspection and testing 8.1 General |
| 17 | 8.2 Selection of samples 8.2.1 General 8.2.2 Flat products 8.2.3 Long products 8.2.4 Wire 8.3 Magnetic properties 8.3.1 Magnetic testing, DC measurements 8.3.2 Magnetic testing, AC measurements 8.3.3 Test specimens 8.4 Geometric characteristics and tolerances 8.4.1 Thickness of flat products 8.4.2 Width of flat products 8.4.3 Flatness |
| 18 | 8.4.4 Edge camber 8.4.5 Dimensions of long products 8.4.6 Straightness of long products 8.5 Retests 9 Complaints 10 Ordering information 11 Certification |
| 19 | Tables Table 1 – Chemical composition of the alloy classes in accordance with IEC 60404-1 |
| 20 | Table 2 – Minimum amplitude permeability requirements for sheet and strip –AC measurement (50 Hz or 60 Hz), sine flux conditions, thickness 0,05 mm to 0,38 mm |
| 21 | Table 3 – DC magnetic property requirements for bar, billet, rod, sheet, strip and wire, thickness or diameter greater than 0,05 mma – S.R., L.R. or E.S. specimen |
| 22 | Table 4 – Maximum permeability rise factor for sheet and strip – L.R. test specimen, AC measurement (50 Hz or 60 Hz) Table 5 – Dimensional requirements for toroidal strip-wound cores |
| 23 | Table 6 – Tolerances on thickness of cold-rolled sheet and strip Table 7 – Tolerances on width of sheet and strip |
| 24 | Table 8 – Tolerances on dimensions of cold-worked bar, rod and wire |
| 25 | Bibliography |
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BS EN 60404-8-6:2017 – TC:2020 Edition
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