1、July 2014Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.
2、150.10!%75m“2201874www.din.deDDIN EN 851Aluminium and aluminium alloys Circle and circle stock for the production of culinary utensils Specifications;English version EN 851:2014,English translation of DIN EN 851:2014-07Aluminium und Aluminiumlegierungen Ronden und Rondenvormaterial zur Herstellung v
3、on Kchengeschirr Spezifikationen;Englische Fassung EN 851:2014,Englische bersetzung von DIN EN 851:2014-07Aluminium et alliages daluminium Disques et bauches pour disques pour applications culinaires Spcifications;Version anglaise EN 851:2014,Traduction anglaise de DIN EN 851:2014-07SupersedesDIN EN
4、 851:1995-09www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 14 pages06.14 DIN EN 851:2014-07 2 A comma is used as the decimal marker. National foreword This document (EN 851:2014) has been prepared by Technical Committee CEN/TC 132 “Alu
5、minium and aluminium alloys” (Secretariat: AFNOR, France), Working Group WG 7 “Sheets, strips and plates” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Nichteisenmetalle (Nonferrous Metals Standards Committee), Working Committee NA 066-
6、01-06 AA Bnder, Bleche, Platten. Amendments This standard differs from DIN EN 851:1995-09 as follows: a) Clause 2 “Normative references” has been updated; b) the document has been editorially revised; c) a Bibliography has been added. Previous editions DIN 59600: 1955-09, 1964-11 DIN 59603: 1964-11,
7、 1981-04 DIN 59602: 1981-04 DIN EN 851: 1995-09 EN 851 April 2014 ICS 77.150.10 Supersedes EN 851:1995English Version Aluminium and aluminium alloys - Circle and circle stock for the production of culinary utensils - Specifications Aluminium et alliages daluminium - Disques et bauches pour disques p
8、our applications culinaires - Spcifications Aluminium und Aluminiumlegierungen - Ronden und Rondenvormaterial zur Herstellung von Kchengeschirr - Spezifikationen This European Standard was approved by CEN on 13 March 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations whi
9、ch stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This Eu
10、ropean Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members
11、are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
12、Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 851:2014 EEUROPEAN COMMITTEE
13、FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 851:2014 (E) 2 Contents PageForeword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Technical conditions for inspection and delivery 5 4.1 General 5 4.2
14、 Orders or tenders.5 5 Mechanical properties .6 5.1 General 6 5.2 Earing 6 6 Tolerances on dimensions and form .6 6.1 General 6 6.2 Diameter 6 6.3 Thickness .7 6.4 Tolerances on flatness for circle 7 6.5 Edge burr tolerances for circle .7 7 Other requirements7 Bibliography . 12 DIN EN 851:2014-07EN
15、851:2014 (E) 3 Foreword This document (EN 851:2014) has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or
16、by endorsement, at the latest by October 2014 and conflicting national standards shall be withdrawn at the latest by October 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible fo
17、r identifying any or all such patent rights. This document supersedes EN 851:1995. With regard the previous version, Clause 2 Normative references was updated; no new alloys were added. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries
18、 are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
19、 Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 851:2014-07EN 851:2014 (E) 4 1 Scope This European Standard specifies the particular requirements for wrought aluminium and aluminium alloys in the form of circle or circle stock for culinary ut
20、ensils applications. This standard is applicable to: Circles made out of hot or cold rolled circles stock, with a thickness from 0,2 mm up to and including 12 mm and with a diameter from 100 mm up to and including 1 600 mm. NOTE Circles with a diameter up to 1 000 mm can be produced by blanking. Hot
21、 or cold-rolled circle stock with a thickness from 0,2 mm up to and including 12 mm and with a width up to 1 600 mm. This European Standard is not applicable to slugs for impact extrusions which are dealt with in other European Standards. 2 Normative references The following documents, in whole or i
22、n part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 485-1, Aluminium and aluminium alloys Shee
23、t, strip and plate Part 1: Technical conditions for inspection and delivery EN 485-2, Aluminium and aluminium alloys - Sheet, strip and plate - Part 2: Mechanical properties EN 485-3, Aluminium and aluminium alloys - Sheet, strip and plate - Part 3: Tolerances on dimensions and form for hot-rolled p
24、roducts EN 485-4, Aluminium and aluminium alloys - Sheet, strip and plate - Part 4: Tolerances on shape and dimensions for cold-rolled products EN 515, Aluminium and aluminium alloys - Wrought products - Temper designations EN 602, Aluminium and aluminium alloys - Wrought products - Chemical composi
25、tion of semi-finished products used for the fabrication of articles for use in contact with foodstuff 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 circle circular flat product obtained by circular sawing or shearing, or by blanking of a fl
26、at rolled product with a uniform thickness over 0,20 mm DIN EN 851:2014-07EN 851:2014 (E) 5 3.2 circle stock flat rolled product of rectangular cross-section with uniform thickness over 0,20 mm, supplied in coils, sheets, or plates, usually with sheared or sawn edges, and intended to be sawn, sheare
27、d or blanked into flat shapes to be subsequently formed, drawn, etc. Note 1 to entry: The thickness does not exceed one tenth of the width. 3.3 hot rolled circle and circle stock circle or circle stock whose final thickness is obtained by hot rolling 3.4 cold rolled circle and circle stock circle or
28、 circle stock whose final thickness is obtained by cold rolling 4 Technical conditions for inspection and delivery 4.1 General All the provisions of EN 485-1 shall apply, except Clause 4 (orders and tenders) which is modified as follows: 4.2 Orders or tenders The order or tender shall define the pro
29、duct required and shall contain the following information: a) the form and the type of product: 1) the form of the product (circle and circle stock); 2) the designation of the aluminium or aluminium alloy; 3) when subsequent decorative anodising, anti-adhesive coating, enamelling, etc. by the custom
30、er is intended, this shall be expressly stated on the order. In all other cases, indication of the customer application is recommended; b) the metallurgical temper of the material for delivery according to EN 515 (degree of hardness or heat treatment condition) and, if different, the metallurgical t
31、emper for use; c) the number of this European Standard or Specification number, or where none exists, the properties greed between purchaser and supplier; d) the dimensions and shape of the product as applicable: 1) thickness; 2) diameter of the circle; 3) width of the strip, sheet, or plate; 4) len
32、gth of the sheet or plate; 5) internal and external diameters of the coil; e) whether hot rolled or cold rolled tolerances apply; DIN EN 851:2014-07EN 851:2014 (E) 6 f) quantity: 1) mass or number of pieces; 2) tolerances on quantity if required; g) any requirements for inspection documents; h) any
33、special requirements agreed between purchaser and supplier: 1) marking of products; 2) references to drawings, etc; 3) any special test required (earing, etc.) and the corresponding acceptation limits; i) for products intended to be surface treated by the purchaser the order shall also contain the f
34、ollowing information: 1) the intended particular surface treatment (according to the relevant European Standard) 2) the number of sides for which a good visual appearance is required and, if only one side, its position with respect to the strip (inside or outside of the coil) or the sheet, plate or
35、circle (upside or downside). 5 Mechanical properties 5.1 General The mechanical properties shall conform to the requirements specified in EN 485-2. 5.2 Earing When applications, such as deep drawing and spinning require a limited level of earing, the maximum acceptable level shall be agreed between
36、purchaser and supplier, recognising that test results may be dependent on testing procedures. 6 Tolerances on dimensions and form 6.1 General Tolerances on dimensions and form shall conform to EN 485-3 and EN 485-4, with the amendments and additions given in 6.2 to 6.5. 6.2 Diameter Tolerances on di
37、ameters for circle shall conform to Table 1. These tolerances include the tolerances on roundness. NOTE For circle obtained by blanking, the recommended standard diameters are: From 100 mm up to 500 mm nominal diameter : every multiple of 5; DIN EN 851:2014-07EN 851:2014 (E) 7 Over 500 mm up to 1 00
38、0 mm nominal diameter: every multiple of 10. 6.3 Thickness Tolerances on thickness for hot rolled circle and circle stock shall conform to Table 2. Tolerances on thickness for cold rolled circle and circle stock shall conform to Table 3. The partition into group I and group II of most common materia
39、ls which may be used for the present application, in conformance with EN 602, shall be as shown in Table 4. 6.4 Tolerances on flatness for circle Tolerances on flatness for circles, expressed as a percentage of the diameter D and/or the measured chord length L, shall conform to Table 5. Deviation fr
40、om flatness d, resulting from arching or buckling, shall be measured as shown in Figures 1 and 2, using a lightweight straightedge and a feeler gauge, dial gauge or scale, while the circle is resting on a horizontal base plate, concave side upwards. Two measurements shall be carried out with the str
41、aight edge respectively parallel and perpendicular to the rolling direction. 6.5 Edge burr tolerances for circle The edge burr shall not be detachable under slight pressure with the thumb, in order not to induce mechanical defects on the surface during the subsequent forming operations (deep drawing
42、, spinning, etc.). It is recommended that the height of the total burr as measured from the flat surface of the circle (see Figure 3) should not exceed: 0,2 mm for thicknesses up to 2 mm; 10 % of the nominal thickness for thickness above 2 mm. 7 Other requirements Particular surface roughness requir
43、ements may be agreed between supplier and customer. In that case, the maximum acceptable roughness shall be specified as well as the method of measurement, according to an appropriate standard or specification, and the location and number of measuring points. DIN EN 851:2014-07EN 851:2014 (E) 8 Tabl
44、e 1 Tolerances on diameter Dimensions in millimetres Specified thickness Method of production Diameter tolerances for specified diameter aover up to up to 600 over 600 up to 1 000 over 1 000 up to 1 600 0,2 4,0 Blanking 0,3 0,3 - circular sawing or shearing + 3 0 + 4 0 + 7 0 4,0 6,0 Blanking 0,5 0,5
45、 - circular sawing or shearing + 4 0 + 5 0 + 8 0 6,0 12,0 Blanking 0,7 0,7 - circular sawing or shearing + 4 0 + 5 0 + 8 0 aThese tolerances include the tolerances on roundness. Table 2 Thickness tolerances for hot rolled circle and circle stock Dimensions in millimetres Specified thickness Thicknes
46、s tolerance for specified diameter or width over up to up to 1 250 over 1 250 up to 1 600 2,5 4,0 0,28 0,28 4,0 5,0 0,30 0,30 5,0 6,0 0,32 0,32 6,0 8,0 0,35 0,35 8,0 10,0 0,40 0,45 10,0 12,0 0,45 0,55 DIN EN 851:2014-07EN 851:2014 (E) 9 Table 3 Thickness tolerances for cold-rolled circle and circle
47、stock Dimensions in millimetres Specified thickness Thickness tolerances for specified diameter or width aover up to up to 1 000 over 1 000 up to 1 250 over 1 250 up to 1 600 Group I Group II Group I Group II Group I Group II 0,2 0,5 0,02 0,03 0,03 0,03 0,04 0,05 0,5 0,6 0,03 0,03 0,04 0,04 0,05 0,0
48、6 0,6 0,8 0,03 0,04 0,04 0,04 0,05 0,07 0,8 1,0 0,04 0,04 0,05 0,05 0,06 0,07 1,0 1,2 0,04 0,05 0,06 0,07 0,07 0,08 1,2 1,5 0,04 0,05 0,07 0,08 0,09 0,10 1,5 1,8 0,05 0,06 0,08 0,09 0,10 1,8 2,0 0,05 0,06 0,10 0,10 2,0 2,5 0,06 0,07 0,10 0,10 2,5 3,0 0,07 0,08 0,12 0,13 3,0 3,5 0,10 0,13 0,13 3,5 4,0 0,11 0,15 0,17 4,0 5,0 0,15 0,20 0,20 5,0 6,0 0,20 0,22 0,24 6,0 8,0 0,24 0,26 0,28 aWhen measuring the thickness, a zone 10 mm wide from the edges of the product shall be disregarded. Table 4 Material groups Group I EN AW-1080A, EN AW-1070A, EN AW-1050A, EN AW-1200 EN AW-3003, EN AW-3103, EN
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