1、DEUTSCHE NORM March 1998 DIN Parallel pins with internal thread, of hardened steel and martensitic stainless steel English version (IS0 8735 of DIN : 1997) EN IS0 8735 IEN IS0 8735 ICs 21.060.50 Supersedes DIN EN 28735, October 1992 edition. Descriptors: Fasteners, parallel pins. Zylinderstifte mit
2、Innengewinde aus gehrtetem Stahl und martensitischem nichtrostendem Stahl (IS0 8735 : 1997) European Standard EN IS0 8735 : 1997 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been published in accordance with a decision taken by CEN/TC 1
3、85 to adopt, without alteration, International Standard IS0 8735 as a European Standard. The responsible German body involved in its preparation was the Normenausschu Mechanische Verbindungselemente (Fasteners Standards Committee). The DIN 4000-9-1 tabular layout of article characteristics shall app
4、ly to the pins covered in this standard. The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are as follows: IS0 3269 DIN IS0 3269 IS0 4042 IS0 3506-1 DIN EN IS0 3506-1 DIN EN IS0 4042*) Amendments In comparison with DIN EN 28735, October 1992 edition, th
5、e standard has been editorially revised and the scope extended to include specifications for stainless steel pins. Previous editions DIN 7979: 1963-06, 1977-02; DIN EN 28735: 1992-1 O. National Annex NA Standards referred to (and not included in Normative references and Annex ZA) DIN 4000-9 DIN EN I
6、S0 3506-1 DIN EN IS0 4042 Tabular layout of article characteristics for bolts, pins, rivets, split pins and keys Corrosion-resistant stainless steel fasteners - Part 1: Bolts, screws and studs Fasteners - Electroplated coatings (ISO/DIS 4042 : 1996)*) *) At present at the stage of draft. EN comprise
7、s 6 pages. Q No part of this standard may be reproduced without the prior permission of Ref. No. DIN EN IS0 8735 : 1998-03 DIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). English price group 07 Sal
8、es No. 1107 08.98 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 8735 November 1997 ICs 21.060.50 Descriptors: Fasteners, parallel pins. English version Supersedes EN 28735 : 1992. Parallel pins with internal thread, of hardened steel and martensitic stainless steel (IS0 8735 : 1997) Goupi
9、lles cylindriques trou taraud Zylinderstifte mit Innengewinde aus en acier tremp et en acier tremp et gehrtetem Stahl und martensitischem en acier inoxydable martensitique nichtrostendem Stahl (IS0 8735 : 1997) (IS0 8735 : 1997) This European Standard was approved by CEN on 1997-1 0-1 8. CEN members
10、 are bound to comply with the CENKENELEC 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 stand- ards may be obtained on application
11、 to the Central Secretariat or to any CEN member. The European Standards exist 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
12、 status as the official versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European
13、 Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1997. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN IS0 8735 : 1997 E Page
14、2 EN IS0 8735 : 1997 Foreword International Standard IS0 8735 : 1997 which was prepared by ISO/TC 2 Fasteners of the International Organization for Standardization, has been adopted by Technical Committee CEN/TC 185 Threaded and non-threaded mechanical fasteners and accessories, the Secretariat of w
15、hich is held by DIN, as a European Standard. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, and conflicting national standards withdrawn, by May 1998 at the latest. In accordance with the CENKENELEC Internal Regu
16、lations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland,
17、 and the United Kingdom. Parallel pins with internal thread, of hardened steel and martensitic stainless steel, Endorsement notice The text of the International Standard IS0 8735 : 1997 was approved by CEN as a European Standard without any modification. NOTE: Normative references to international p
18、ublications are listed in Annex ZA (normative). 1 Scope This International Standard specifies the characteristics of parallel pins with internal thread of steel, through hardened or case hardened and martensitic stainless steel, with nominal diameters d, from 6 mm to 50 mm inclusive. 2 Normative ref
19、erences The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International
20、Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 965-2:-”, IS0 general purpose metric screw threads - Tolerances - Part2: limits of s
21、izes for general purpose bolt and nut threads - Medium quality. IS0 3269: 1988, Fasteners - Acceptance inspection. IS0 3506-1: 1997, Corrosion-resistant stainless steel fasteners - Part 1: Bolts, screws and studs. IS0 4042:-, Fasteners - Electroplated coatings. 1) To be published. (Revision of IS0 9
22、65-2:1980) 2) To be published. (Revision of IS0 4042:1989) Page 3 EN IS0 8735 : 1997 3 Dimensions See figure 1 and table 1. 1) Slight flat or small groove at the manufacturers discretion Type A: Pin with crown, through hardened steel and martensitic stainless steel NOTE - Other dimensions, see type
23、A Type 8: Flat pin, case hardened steel Figure 1 Page 4 EN IS0 8735 : 1997 Table 1 - Dimensions Dimensions in millimetres 1) Other tolerances as agreed between customer and supplier. 2) P is the pitch of the thread. 3) For nominal lengths above 200 mm, steps of 20 mm. Page 5 EN IS0 8735 : 1997 Steel
24、 St 4 Requirements and reference International Standards See table 2. Martensitic stainless steel C1 in accordance with IS0 3506-1 Table 2 - Requirements and reference International Standards Hardness: 550 HV30 to 650 HV30 Screw thread Surface hardness: 600 HVI to 700 HVI Material” If pins are surfa
25、ce coated appropriate plating or coating processes should be employed to avoid hydrogen ernbrittlement. When pins are electro- plated or phosphate-coated, they shall be suitably treated immediately after plating or coating to obviate detrimental hydrogen embrittlernent, althouah freedom from hvdroae
26、n ernbrittlement ist not absolutelv auaran- Surface Plain, .e. pins to be supplied in natural finish. Surface roughness Workmanship Acceptability Metric screw thread with tolerance 6H in accordance with IS0 965-2. pin through hardened pin case hardened I Chemical composition limits (check analysis)
27、% I C 0,95 to 1,l si O, 15 to 0,35 Mn 0,25 to 0,4 P 0,03 rnax. S 0,025 rnax. Cr 1,35 to 1,65 either C 0,06 to 0,13 Si 0,l to 0,4 Mn 0,25 to 0,6 P 0,025 max. S 0.05 rnax. or C 0,15 max. Si 0,lO rnax. Mn 0.9 to 1.3 P 0,07 max. S 0,15 to 0,35 Pb 0.15 to 0,35 I at the suppliers discretion Hardness at ca
28、se depth 0,25 to 0,4 mm: 550 HVI min. Hardened and tempered to a hardness of 460 HV30 to 560 HV30 Plain, .e. pins to be supplied in natural finish, treated with a protective lubricant, unless otherwise specified by agreement between customer and supplier. Y ,Y .- I teed (see IS0 4042). All tolerance
29、s shall apply prior to the application of a plating or coating. Ka 0,8 prn Pins shall be free of irregularities or detrimental defects. No burrs shall appear on any part of the pin. The acceptance procedure is covered in IS0 3269. 1) Other materials as agreed between customer and supplier. Page 6 EN
30、 IS0 8735 : 1997 5 Designation EXAMPLE I A through hardened steel parallel pin type A, with internal thread, with nominal diameter d, = 6 mm and nominal length 1 = 30 mm is designated as follows: Parallel pin IS0 8735 - 6 x 30 - A - St EXAMPLE 2 A martensitic stainless steel pin of grade CI, with in
31、ternal thread, with nominal diameter d, = 6 mm and nominal length 1 = 30 mm is designated as follows: Parallel pin IS0 8735 - 6 x 30 - C1 Annex ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or
32、undated reference, provisions from other publications. These normative references 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. Publication Year Title IS0 3506-1 1997 Mechanical properties of corrosion-resistant stainless steel fasteners - Part 1 : Bolts, screws and studs EN IS0 3506-1 1997
