【BS英国标准】BS EN 941-1996 Aluminium and aluminium alloys — Circle and circle stockfor general applications — Specifications.doc

british standard bs en941:1996aluminium and aluminium alloys circle and circle stock for general applications specificationsthe european standard en 941:1995 has the status of abritish standardics 77.120.10; 77.140.90bs en 941:1996committees responsible for thisbritish standardthe preparation of this british standard was entrusted to technical committee nfe/35, light metals and their alloys, upon which the following bodies were represented:aluminium federationaluminium stockholders associationlondon metal exchangemagnesium industry councilthe following bodies were also represented in the drafting of the standard, through subcommittees and panels:association of british welded aluminium tube makersassociation of light alloy refiners limitedinstitution of structural engineersmetal packaging manufacturers associationthis british standard, having been prepared under the direction of the engineering sector board, was published under the authority of the standards board and comes into effect on15 april 1996 bsi 09-1999the following bsi references relate to the work on this standard:committee reference nfe/35draft for comment 92/48311 dcisbn 0 580 25315 5amd. no.datecommentsamendments issued since publicationbs en 941:1996contentspage committees responsibleinside front cover national forewordii foreword 2text of en 9413list of referencesinside back cover bsi 09-1999ibs en 941:1996national forewordthis british standard has been prepared by technical committee nfe/35 and is the english language version of en 941:1995 aluminium and aluminiumalloys circle and circle stock for general applications specificationspublished by the european committee for standardization (cen).cross-referencespublication referred tocorresponding british standardbs en 485 aluminium and aluminium alloys sheet, strip and plateen 485-1:1993part 1:1994 technical conditions for inspection and deliveryen 485-2:1994part 2:1995 mechanical propertiesen 485-3:1993part 3:1994 tolerances on shape and dimensions for hot-rolled productsen 485-4:1993part 4:1994 tolerances on shape and dimensions for cold-rolled productsen 515:1993bs en 515:1993 aluminium and aluminium alloys wrought products temper designationsa british standard does not purport to include all the necessary provisions of a contract. users of british standards are responsible for their correct application.compliance with a british standard does not of itself confer immunity from legal obligations.summary of pagesthis document comprises a front cover, an inside front cover, pages i and ii, the en title page, pages 2 to 8, an inside back cover and a back cover.this standard has been updated (see copyright date) and may have had amendments incorporated. this will be indicated in the amendment table on the inside front cover. bsi 09-1999iieuropean standard norme europenneeuropische normen 941june 1995ics 77.120.10; 77.140.90descriptors: aluminium, aluminium alloys, rolled products, blank, delivery, orders: sale documents, dimensions, dimensional tolerancesenglish versionaluminium and aluminium alloys circle and circle stock for general applications specificationsaluminium et alliages daluminium disques et bauches pour disques pour applications gnrales spcificationsaluminium und aluminiumlegierungen ronden und rondenvormaterial fr allgemeine anwendungen spezifikationenthis european standard was approved by cen on 1995-02-08. cen members are bound to comply with the cen/cenelec internal regulations which 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 central secretariat or to any cen member.this european 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 central secretariat has the same status as the official versions.cen members are the national standards bodies of austria, belgium, denmark, finland, france, germany, greece, iceland, ireland, italy, luxembourg, netherlands, norway, portugal, spain, sweden, switzerland and united kingdom.ceneuropean committee for standardization comit europen de normalisation europisches komitee fr normungcentral secretariat: rue de stassart 36, b-1050 brussels 1995 all rights of reproduction and communication in any form and by any means reserved in all countries to cen and its members.ref. no. en 941:1995 een 941:19955 bsi 09-1999forewordthis european standard has been prepared by technical committee cen/tc 132, aluminium and aluminium alloys, of which the secretariat is held by afnor.this european standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by december 1995, and conflicting national standards shall be withdrawn at the latest by december 1995.according to the cen/cenelec internal regulations, the following countries are bound to implement this european standard: austria, belgium, denmark, finland, france, germany, greece, iceland, ireland, italy, luxembourg, netherlands, norway, portugal, spain, sweden, switzerland, united kingdom.contentspageforeword21scope32normative references33definitions 33.1circle33.2circle stock33.3hot-rolled circle and circle stock33.4cold-rolled circle and circle stock34technical conditions for inspectionand delivery34.1general34.2orders or tenders35mechanical properties46tolerances on dimensions and form46.1general46.2diameter46.3thickness 4figure 1 arch8figure 2 buckle8table 1 tolerances on diameter4table 2 hot-rolled circle and circle stock thickness tolerances5table 3 cold-rolled circle and circle stock thickness tolerances6table 4 material groups7table 5 circle flatness tolerances76.4tolerances on flatness for circles41 scopethis european standard specifies the particular requirements for wrought aluminium and aluminium alloys in the form of circle or circle stock for general applications.it applies to: circles made out of hot or cold-rolled circle stock by: blanking: thickness 0,2 mm up to and including 12 mm and with a diameter up to 1 000 mm; sawing or shearing: thickness 0,2 mm up to and including 200 mm with a diameter upto 3 500 mm; hot or cold-rolled circle stock with a thickness from 0,2 mm up to and including 200 mm and with a width up to 3 500 mm.it does not apply to slugs for impact extrusions or to circle and circle stock for culinary utensil applications which are dealt with in separate european standards.2 normative referencesthis european standard incorporates by dated or undated reference, provisions from other publications. these normative references are cited at the appropriate places in the text and the publications are listed hereafter. for dated references, subsequent amendments to or revisions of any of these publications apply to this european standard only when incorporated in it by amendment or revision. for undated references the latest edition of the publication referred to applies.en 485-1, aluminium and aluminium alloys wrought products sheets, strips and plates part 1: technical conditions for inspection and delivery.en 485-2, aluminium and aluminium alloys sheet, strip and plate part 2: mechanical properties.en 485-3:1993, aluminium and aluminium alloys sheets, strip and plate part 3: tolerances on dimensions and form for hot-rolled products.en 485-4:1993, aluminium and aluminiumalloys sheet, strip and plate part 4: tolerances on dimensions and form for cold-rolled products.en 515, aluminium and aluminium alloys wrought products temper designations.3 definitionsfor the purposes of this standard all definitions ofen 485-1 apply with the following additions.3.1 circlecircular flat product obtained by circular sawing or shearing, or by blanking of a flat rolled product with a uniform thickness over 0,20 mm3.2circle stockflat 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, sheared or blanked into flat shapes to be subsequently formed, drawn, etc.note the thickness does not exceed one-tenth of the width.3.3hot-rolled circle and circle stockcircle or circle stock whose final thickness is obtained by hot rolling3.4cold-rolled circle and circle stockcircle or circle stock whose final thickness is obtained by cold rolling4 technical conditions for inspection and delivery4.1 generalall provisions of en 485-1 shall apply, except for clause 4 (orders or tenders) which is modified as follows.4.2 orders or tendersthe order or tender shall define the product required and shall contain the following information:a) the form and type of product: the form of the product (circle or circle stock); the designation of the aluminium or aluminium alloy; the customer application;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 temper for use;c) the number of this european standard or a specification number, or, where none exists, the properties agreed between purchaser and supplier;d) the dimensions and shape of the product as applicable: thickness; diameter of the circle; width of the strip, sheet or plate; length of the sheet or plate; internal and external diameters of the coil;e) whether hot-rolled or cold-rolled tolerances apply;f) quantity: mass or number of pieces; tolerances on quantity if required;g) any requirements for certificates of conformity, test and/or analysis reports or inspection certificates;h) any special requirements agreed between purchaser and supplier: marking of products; references to drawings, etc.5 mechanical propertiesthe mechanical properties shall conform to the requirements specified in en 485-2.6 tolerances on dimensions and form6.1 generalall provisions of en 485-3 and en 485-4 shall apply, with the following amendments and additions:6.2 diametertolerances on diameter for circles shall conform to table 1. these tolerances include the tolerance on roundness.note for circles obtained by blanking the recommended standard diameters are: from 100 mm up to 500 mm nominal diameter: every multiple of 5; over 500 mm up to 1 000 mm nominal diameter: every multiple of 10.6.3 thicknesstolerances on thickness for hot-rolled circle and circle stock shall conform to table 2. they are identical to those specified in table 1 ofen 485-3:1993 and are reproduced here for convenience.the tolerances on thickness for cold-rolled circle and circle stock shall conform to table 3. they are identical to those specified in table 1 ofen 485-4:1993 and are reproduced here for convenience. the partition into group i and group ii of most common materials which may be used forthe present application shall be as shown in table 4.6.4 tolerances on flatness for circlestolerances on flatness, expressed as a percentage of the diameter d and/or the measured chord length l, shall conform to table 5.deviation from flatness d, resulting from arching or buckling, is measured as shown in figure 1 and figure 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 are carried out with the straight edge respectively parallel and perpendicular to the rolling direction.these tolerances do not apply to circles supplied in the o or f tempers except for special agreement between supplier and purchaser.table 1 tolerances on diameterdimensions in millimetresspecified thicknessmethod of productiondiameter tolerancea for specified diameteroverup toup to 600over 600 up to 1 000over 1 000 up to 1 600over 1 600 up to 3 000over 3 000 up to 3 5000,24,0blanking 0,5 0,5circular sawing orshearing+ 30+ 40+ 70+ 90+ 1104,06,0blanking 0,7 0,7circular sawing orshearing+ 40+ 50+ 80+ 90+ 1106,012,0blanking 1 1circular sawing orshearing+ 40+ 50+ 80+ 100+ 12012,050circular sawing+0+ 70+ 90+ 120+ 14050200circular sawing+ 100+ 100+ 120+ 140+ 160a these tolerances include the tolerances on roundnesstable 2 hot-rolled circle and circle stock thickness tolerancesdimensions in millimetresspecified thicknessthickness tolerance for specified diameter or widthoverup toup to 1 250over 1 250up to 1 600over 1 600up to 2 000over 2 000up to 2 500over 2 500up to 3 5002,54,0 0,28 0,28 0,32 0,35 0,404,05,0 0,30 0,30 0,35 0,40 0,455,06,0 0,32 0,32 0,40 0,45 0,506,08,0 0,35 0,40 0,40 0,50 0,558,010 0,45 0,50 0,50 0,55 0,601015 0,50 0,60 0,65 0,65 0,801520 0,60 0,70 0,75 0,80 0,902030 0,65 0,75 0,85 0,90 1,03040 0,75 0,85 1,0 1,1 1,24050 0,90 1,0 1,1 1,2 1,55060 1,1 1,2 1,4 1,5 1,76080 1,4 1,5 1,7 1,9 2,080100 1,7 1,8 1,9 2,1 2,2100150 2,2 2,2 2,7 2,8150200 2,8 2,8 3,3 3,3table 3 cold-rolled circle and circle stock thickness tolerancesdimensions in millimetres6 bsi 09-1999en 941:1995specified thicknessthickness tolerancea for specified diameter or widthup to 1 000over 1 000up to 1 250over 1 250up to 1 600over 1 600up to 2 000over 2 000up to 2 500over 2 500up to 3 000over 3 000up to 3 500overup tomaterial groupmaterial groupmaterial groupmaterial groupmaterialgroupmaterialgroupmaterialgroupiiiiiiiiiiiii and iii and iii and ii0,200,4 0,02 0,03 0,04 0,05 0,05 0,060,40,5 0,03 0,03 0,04 0,05 0,05 0,06 0,06 0,07 0,100,50,6 0,03 0,04 0,05 0,06 0,06 0,07 0,07 0,08 0,110,60,8 0,03 0,04 0,06 0,07 0,07 0,08 0,08 0,09 0,120,81,0 0,04 0,05 0,06 0,08 0,08 0,09 0,09 0,10 0,131,01,2 0,04 0,05 0,07 0,09 0,09 0,10 0,10 0,12 0,141,21,5 0,05 0,07 0,09 0,11 0,10 0,12 0,11 0,14 0,161,51,8 0,06 0,08 0,10 0,12 0,11 0,13 0,12 0,15 0,171,82,0 0,06 0,09 0,11 0,13 0,12 0,14 0,14 0,16 0,192,02,5 0,07 0,10 0,12 0,14 0,13 0,15 0,15 0,17 0,202,53,0 0,08 0,11 0,13 0,15 0,15 0,17 0,17 0,19 0,233,03,5 0,10 0,12 0,15 0,17 0,17 0,19 0,18 0,20 0,243,54,0 0,15 0,20 0,22 0,23 0,25 0,34 0,384,05,0 0,18 0,22 0,24 0,25 0,29 0,36 0,425,06,0 0,20 0,24 0,25 0,26 0,32 0,40 0,466,08,0 0,24 0,30 0,31 0,32 0,38 0,44 0,508,010 0,27 0,33 0,36 0,38 0,44 0,50 0,561012 0,32 0,38 0,40 0,41 0,47 0,53 0,591215 0,36 0,42 0,43 0,45 0,51 0,57 0,631520 0,38 0,44 0,46 0,48 0,54 0,60 0,662025 0,40 0,46 0,48 0,50 0,56 0,62 0,682530 0,45 0,50 0,53 0,55 0,60 0,65 0,703040 0,50 0,55 0,58 0,60 0,65 0,70 0,754050 0,55 0,60 0,63 0,65 0,70 0,75 0,80a when measuring the thickness, a zone 10 mm wide from the edges of the product shall be disregarded.en 941:1995table 4 material groupsgroup ien aw-1080a, en aw-1070a, en aw-1050a, en aw-1200en aw-3003, en aw-3103, en aw-3005, en aw-3105en aw-4006, en aw-4007en aw-5005, en aw-5305, en aw-5505, en aw-5605, en aw-5110, en aw-5210, en aw-5310, en aw-5050en aw-8011agroup iien aw-2014, en aw-2017a, en aw-2024en aw-3004en aw-5040, en aw-5049, en aw-5251, en aw-5052, en aw-5154a, en aw-5454, en aw-5754, en aw-5182en aw-5083, en aw-5086en aw-6061, en aw-6082en aw-7020, en aw-7021, en aw-7022, en aw-7075table 5 circle flatness tolerancesdimensions in millimetresspecified thicknessmaximum total deviationaoverup to