1、BRITISH STANDARD BSEN 28839:1992 ISO8839:1986 Mechanical properties of fasteners Bolts, screws, studs and nuts made of non-ferrous metals The European StandardEN28839:1991 has the status of a British StandardBSEN28839:1992 This British Standard, having been prepared under the directionof the General
2、 Mechanical Engineering Standards Policy Committee, waspublished under the authorityof the Standards Boardand comes into effect on 1April1992 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference GME/9 Draft for comment85/79319 DC ISBN0 580 20715 3 Coopera
3、ting organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countries. Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dans
4、k Standardiseringsraad Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy E
5、nte Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen
6、 i Sverige Switzerland Association suisse de normalisation UnitedKingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBSEN28839:1992 BSI 09-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN28839 3 N
7、ational annex NA (informative) Inside back cover National annex NB (informative) Inside back coverBSEN28839:1992 ii BSI 09-1999 National foreword This British Standard has been prepared under the direction of the General Mechanical Engineering Standards Policy Committee and is the English language v
8、ersion ofEN28839:1991 “Mechanical properties of fasteners Bolts, screws, studs and nuts made of non-ferrous metals”, published by the European Committee for Standardization (CEN). It is identical withISO8839:1986, published by the International Organization for Standardization (ISO). EN28839:1991 wa
9、s produced as a result of international discussion in which the UK took an active part. A 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
10、itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorpo
11、rated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN28839 October1991 UDC621.88-034.2:620.17 Descriptors: Fasteners, bolts, screws, studs, nuts: fasteners, specifications, mechanical properties, tests, breaking load, desi
12、gnations English version Mechanical properties of fasteners Bolts, screws, studs and nuts made of non-ferrous metals (ISO8839:1986) Caractristiques mcaniques des lments de fixation Boulons, vis, goujons et crous en mtaux non ferreux (ISO8839:1986) Mechanische Eigenschaften von Verbindungselementen S
13、chrauben und Muttern aus Nichteisenmetallen (ISO8839:1986) This European Standard was approved by CEN on1991-10-10. 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
14、 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
15、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, Luxe
16、mbourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels CEN 1991 Copyright reserved to all CEN members Ref. N
17、o. EN28839:1991 EEN28839:1991 BSI 09-1999 2 Foreword In1990, ISO8839:1986 was submitted to the CEN P.Q.-procedure. Following the positive result of the P.Q., CEN/BT agreed to submit ISO8839:1986 with the following modifications to Formal Vote. Bolts, screws, studs and nuts with mechanical properties
18、 according to this standard can be used in cases where corrosion resistance or electrical conductivity are required, but no special requirements in view of these properties are specified in this standard. In the French version, replace: “boulon” by “vis partiellement filete”, “boulon, vis” by “vis”.
19、 In accordance with the Common CEN/CENELEC Rules, 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 and UnitedKingdom. Cont
20、ents Page Foreword 2 1 Scope and field of application 3 2 References 3 3 Designation system and materials 3 4 Mechanical properties 3 5 Mechanical properties to be tested 3 6 Test methods 5 Table 1 Symbols for materials 3 Table 2 Mechanical properties 4 Table 3 Mechanical properties to be tested 4 T
21、able 4 Minimum breaking loads 5EN28839:1991 BSI 09-1999 3 1 Scope and field of application This International Standard specifies the mechanical properties of bolts, screws, studs and nuts with nominal thread diameters, d, from M1,6 toM39 inclusive; with metric ISO thread in accordance with ISO261; m
22、ade of copper and copper alloys or aluminium and aluminium alloys. It does not apply to bolts, screws, studs and nuts with special property requirements such as corrosion resistance; electrical conductivity. 2 References ISO1, Standard reference temperature for industrial length measurements. ISO209
23、, Wrought aluminium and aluminium alloys Chemical composition of wrought products (per cent) 1) . ISO261, ISO general purpose metric screw threads General plan. ISO426-1, Wrought copper-zinc alloys Chemicalcomposition and forms of wrought products Part1: Non-leaded and special copper-zinc alloys. IS
24、O426-2, Wrought copper-zinc alloys Chemical composition and forms of wrought products Part2: Leaded copper-zinc alloys. ISO427, Wrought copper-tin alloys Chemical composition and forms of wrought products. ISO428, Wrought copper-aluminium alloys Chemical composition and forms of wrought products. IS
25、O898-1, Mechanical properties of fasteners Part1: Bolts, screws and studs 2) . ISO898-2, Mechanical properties of fasteners Part2: Nuts with specified proof load values. ISO898-7, Mechanical properties of fasteners Part7: Torque test for bolts and screws with thread sizes from M1 to M10 3) . ISO1187
26、, Special wrought copper alloys Chemical composition and forms of wrought products. ISO1337, Wrought copper (having minimum copper contents of99,85%) Chemical composition and forms of wrought products. 3 Designation system and materials Table 1 lists the symbols for the material to be used in the de
27、signation and for marking purposes (seeclause7); reference is made to the relevant International Standard. Table 1 Symbols for materials Bolts, screws, studs and nuts made of non-ferrous metals shall be designated in accordance with following example: Designation of a hexagon head bolt ISO4014 M12 8
28、0 made of CuZn37 (seeTable 1 for appropriate material symbol): Hexagon head bolt ISO4014 M12 80 CU2 4 Mechanical properties When tested at the standard reference temperature of20 C (seeISO1) using the methods described inclause6, the bolts, screws, studs and nuts shall have the mechanical properties
29、 set out inTable 2. NOTEIn case of high forming operations (e.g.special parts), the mechanical properties should be agreed between the customer and the supplier. 5 Mechanical properties to be tested Table 3 specifies which tests shall be carried out on bolts, screws, studs and nuts. Other tests shal
30、l be subject to agreement between the customer and the supplier. 1) At present at the stage of draft. (Revision ofISO/R209:1971.) 2) At present at the stage of draft. (Revision ofISO898-1:1978.) 3) At present at the stage of draft. Symbol Designation of material Relevant International Standard CU1 C
31、u-ETP or Cu-FRHC ISO 1337 CU2 CuZn37 ISO 426-1 CU3 CuZn39Pb3 ISO 426-2 CU4 CuSn6 ISO 427 CU5 CuNi1Si ISO 1187 CU6 CuZn40Mn1Pb CU7 CuAl10Ni5Fe4 ISO 428 AL1 AlMg3 ISO 209 AL2 AlMg5 ISO 209 AL3 AlSi1MgMn ISO 209 AL4 AlCu4MgSi ISO 209 AL5 AlZnMgCu 0,5 AL6 AlZn5,5MgCu ISO 209EN28839:1991 4 BSI 09-1999 Ta
32、ble 2 Mechanical properties Table 3 Mechanical properties to be tested Material Nominal thread diameter Tensile strength Stress at permanent set limit Percentage elongation after fracture d R m R p0,2 A Symbol Designation min. min. min. N/mm 2 N/mm 2 % CU1 Cu-ETPor Cu-FRHC du M39 240 160 14 CU2 CuZn
33、37 du M6 440 340 11 M6M5 Tensile test (also, if required, stress at permanent set limit and percentage elongation after fracture)EN28839:1991 BSI 09-1999 5 6 Test methods 6.1 Tensile test applicable to bolts, screws and studs In general for tensile testing, a full size bolt, screw or stud shall be u
34、sed and the test shall be carried out as specified inISO898-1. For minimum breaking loads, seeTable 4. For testing the stress at permanent set limit, R p0,2 , and the percentage elongation after fracture, machined test pieces shall be used and the test shall be carried out as specified inISO898-1. T
35、able 4 Minimum breaking loads Nominal thread diameter Pitch of the thread Nominal stress area Symbols for materials CU1 CU2 CU3 CU4 CU5 CU6 CU7 AL1 AL2 AL3 AL4 AL5 AL6 Minimum breaking Ioads a d P A s A s R m mm mm 2 N M3 0,5 5,03 1210 2210 2210 2360 2970 1360 1560 1610 2110 2310 2570 M3,5 0,6 6,78
36、1630 2980 2980 3190 4000 1830 2100 2170 2850 3120 3460 M4 0,7 8,78 2110 3860 3860 4130 5180 2370 2720 2810 3690 4040 4480 M5 0,8 14,2 3410 6250 6250 6670 8380 3830 4400 4540 5960 6530 7240 M6 1 20,1 4820 8840 8840 9450 11860 5430 6230 6430 8440 9250 10250 M7 1 28,9 6940 10690 10690 13580 17050 12720
37、 7800 8960 8960 12140 13290 14740 M8 1,25 36,6 8780 13540 13540 17200 21590 16100 9880 11350 11350 15370 16840 18670 M10 1,5 58,0 13920 21460 21460 27260 34220 25520 15660 17980 17980 24360 26680 29580 M12 1,75 84,3 20230 31190 31190 39620 49740 37090 21080 26130 26130 32030 38780 42990 M14 2 115 27
38、600 42550 42550 46000 67850 50600 73600 28750 35650 35650 43700 52900 58650 M16 2 157 37680 58090 58090 62800 92630 69080 100500 39250 43960 48670 59660 72220 80070 M18 2,5 192 46080 71040 71040 76800 113300 84480 122900 48000 53760 59520 72960 88320 97920 M20 2,5 245 58800 90650 90650 98000 144500
39、107800 156800 61250 68600 75950 93100 112700 124900 M22 2,5 303 72720 112100 112100 121200 178800 133300 193900 84840 93930 115100 139400 154500 M24 3 353 84720 130600 130600 141200 208300 155300 225900 98840 109400 134100 162400 180000 M27 3 459 110200 169800 169800 183600 270800 202000 293800 1285
40、00 142300 174400 211100 234100 M30 3,5 561 134600 207600 207600 224400 331000 246800 359000 157100 173900 213200 258100 286100 M33 3,5 694 166600 256800 256800 277600 305400 444200 194300 215100 263700 319200 353900 M36 4 817 196100 302300 302300 326800 359500 522900 228800 253300 310500 375800 4167
41、00 M39 4 976 234200 361100 361100 390400 429400 624600 302600 370900 449000 497800 a For nuts, proof load.6 blankBSEN28839:1992 BSI 09-1999 National annex NA (informative) Committees responsible The UnitedKingdom participation in the preparation of this European Standard was entrusted by the General
42、 Mechanical Engineering Standards Policy Committee (GME/-) to Technical Committee GME/9 upon which the following bodies were represented: BEAMA Ltd. British Constructional Steelwork Association Ltd. British Industrial Fasteners Federation British Railways Board British Steel Industry British Steel I
43、ndustry (Wire Section) Gauge and Tool Makers Association Ministry of Defence Society of Motor Manufacturers and Traders Ltd. Washer Manufacturers Association of GreatBritain The following bodies were also represented in the drafting of the standard, through subcommittees and panels: British Turned-p
44、arts Manufacturers Association EEA (The Electronic and Business Equipment Association) Institute of Metal Finishing Metal Finishing Association Stainless Steel Fabricators Association of GreatBritain National annex NB (informative) Cross-references Publication referred to Corresponding British Stand
45、ard ISO 261:1973 BS3643 ISO metric screw threads Part1:1981 Principles and basic data BSEN20898 Mechanical properties of fasteners ISO 898-1:1988 Part1:1992 Specification for bolts, screws and studs ISO 898-2:1980 Part2:1992 Specification for nuts with specified proof load valuesBSEN 28839:1992 ISO
46、8839:1986 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions BritishStan
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