《ISO-8750-1997.pdf》由会员分享，可在线阅读，更多相关《ISO-8750-1997.pdf（8页珍藏版）》请在三一文库上搜索。
1、INTERNATIONAL STANDARD IS0 8750 Second edition 1997-12-01 Spring-type straight pins - Coiled, standard duty Goupilles Blastiques spiralkes - Sbrie moyenne This material is reproduced from IS0 documents under lnternatronal Organization for Standardization (ISO) Copyright License number lHSllCCll996.
2、Not for resale. No part of these IS0 documents may be reproduced in any form, electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consent of IS0 (Case postale 56,lZll Geneva 20, Switzerland, Fax +41 22 734 10 79), IHS or t
3、he IS0 Licenser s members. Reference number IS0 8750:1997(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:55:28 MDTNo reproduction or networking permitted without license f
4、rom IHS -,-,- IS0 8750: 1997(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body inter
5、ested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non- governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnica
6、l Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. In
7、ternational Standard IS0 8750 was prepared by Technical Committee lSO/TC 2, fasteners. This second editon cancels and replaces the first edition (IS0 8750:1987), which has been technically revised. Annex A of this International Standard is for information only. 0 IS0 1997 All rights reserved. UnleSS
8、 otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permiSSiOn in Writing from the publisher. International Organization for Standardization Case postale 56 l CH-1211 Gene
9、ve 20 l Switzerland Internet centralOiso.ch x.400 c-ch; a=400net; p=iso; o=isocs: s=central Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:55:28 MDT
10、No reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD IS0 IS0 8750:1997(E) Spring-type straight pins - Coiled, standard duty 1 Scope This International Standard specifies the characteristics of standard duty coiled spring-type straight pins made of steel or of
11、 austenitic or martensitic stainless steel, with nominal diameter, d, from 0,8 mm to 20 mm inclusive. NOTE - Spring-type straight pins, coiled, heavy duty and spring type straight pins, coiled, light duty, are the subjects of IS0 8748 and IS0 8751 respectively. 2 Normative references The following s
12、tandards 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 Standard are encouraged
13、 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 3269: 1988, Fasteners - Acceptance inspection. IS0 4042:-l), Fasteners - Electroplated coatings. IS0 8749:
14、1986, Pins and grooved pins - Shear test. 3 Dimensions See figure 1 and table 1. I) Swaged chamfer at both ends Figure 1 I) To be published. (Revision of IS0 4042:1989) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1
15、/9972545001 Not for Resale, 04/25/2007 23:55:28 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 8750:1997(E) Table 1 - Dimensions IS0 n0m.l 0.6 I 1 I I,2 I I,5 I 2 I 2,5 3 3.5 4 5 6 8 II before max. moun- 0.91 1.15 1.35 I,73 2,25 2,78 3,30 3.04 4.4 5.50 6,50 8.63 ting m
16、in. 0.85 1.05 I,25 1.62 2,13 2.65 3.15 3.67 4.2 5,25 6.25 8,30 before I moun- max. 0.75 0.95 1.15 1.4 1.9 2.4 2.9 3.4 3.9 4.85 5.85 7.8 ting - 0.3 0,3 0.4 0.5 0,7 0.7 0,9 1 I,1 I,3 1.5 2 0.07 0.08 0.1 0.13 0.17 0.21 0.25 0.29 0.33 0.42 0.5 0,67 dinimum hear strength, 11 louble 0.4 0.6 0.9 1.45 2.5 3
17、.9 5.5 7.5 9.6 15 22 39 .N II 0.3 0,45 0.65 1.05 1,9 2.9 4.2 5.7 7,6 11.5 16.8 30 I” lOIll. min. max. 4 3.75 4.25 5 4.75 5.25 6 5,75 6.25 8 7.75 8,25 10 9,75 IO,25 12 11,5 12.5 14 13,5 14.5 161 15.51 18 17.5 20 19.5 -t-t 22 21.5 24 23.5 26 25.5 T-t 28 27.5 30 29.5 32 31,5 32.5 35 34.5 35.5 40 39.5 4
18、0.5 I I 45 50 55 60 65 70 75 80 85 90 95 100 120 140 160 180 200 1) API 44.5 45,5 49.5 50,5 54.25 55.75 59.25 60.75 64.25 55,75 69.25 70.75 74.25 75.75 79.25 80.75 84.25 85.75 89,25 90.75 94.25 95,75 99,25 100.75 119.25 120.75 139.25 140.75 159.25 160.75 179.25 180,75 199.25 200.75 plies to 1 tee1 a
19、nd martensitic c wrosion resi Dimensions millimetres 48 67 - - - I I Range of commercial It steel products. 2) Applies to austenitic stainless steel products. 3) For nominal lengths above 200 mm, steps of 20 mm. 2 Copyright International Organization for Standardization Provided by IHS under license
20、 with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:55:28 MDTNo reproduction or networking permitted without license from IHS -,-,- 0 IS0 IS0 8750:1997(E) 4 Application The diameter of the hole into which the spring pin is to be inserted shall be equal to the nomin
21、al diameter d, of the mating pin and to tolerance class H12. For pins with nominal diameter I,2 mm and below, the tolerance class of the hole diameter shall be HIO. 5 Requirements and reference International Standards See table 2. Table 2 - Requirements and reference International Standards laterial
22、” Mace finish Norkmanship ihear strength est Jcceptability The acceptance procedure is covered in IS0 3269. Steel All pin diameters Alternative for pin diameters d, 12 mm I Chemical composition limits (check analysis) % : 3 0,64 tins 0,60 $i ?,0,15 :r c 0,04 s =s 0.05 c 3 0,3a Mn 3 0,70 Si 2 0,20 Cr
23、 2 0,ao v 3 0,15 : s 0,035 s 0,04 iardened and tempered to a Vickers qardness of 420 HV30 to 545 HV30 Plain, i.e. pins to be supplied in natural finish, treated with a protective lubricant, unless otherwise specified by agreement between customer and supplier. If pins are surface coated appropriate
24、plating or coating processes should be employed to avoid hydrogen embrittle- ment. When pins are electroplated or phosphate-coated, they shall be suitably treated immediately after plating or coating to obviate detrimental hydrogen embrittlement although freedom from hydrogen embrittlement is not ab
25、solutely guaranteed (see IS0 4042). All tolerances shall apply prior to the ap- plication of a plating or coating. - - - . . . Chemical composition limits (check analysis) % 1 G 0,15 un 2,00 3i G 1,50 Zr 16 to 20 Vi 6 to 12 P G 0,045 2 c 0,03 w0 s 0,a Cold worked c a 0,15 Mn G 1.00 Si G 1,00 Cr II,5
26、 to 14 Ni G 1,00 P s 0,04 s 4 0,03 Hardened and tem- pered to a Vickers hardness of 460 HV30 to 560 HV30 Plain, i.e. pins to be supplied in natural finish Pins shall be tree ot lrregularlties or detrimental detects. No burrs shall appear on any part of the pin. The test shall be in accordance with I
27、S0 8749. 1) Other materials as agreed between customer and supplier. 2) Use of Cr is optional. 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:55:28 MDTNo reproduction or ne
28、tworking permitted without license from IHS -,-,- IS0 8750: 1997(E) 6 Designation EXAMPLE 1 A steel spring-type straight pin (St), coiled, standard duty, with nominal diameter d, = 6 mm and nominal length I= 30 mm is designated as follows: Spring pin IS0 8750 - 6 x 30 - St EXAMPLE 2 An austenitic st
29、ainless steel spring-type straight pin (A), coiled, standard duty, with nominal diameter d, = 6 mm and nominal length 1= 30 mm is designated as follows: Spring pin IS0 8750 - 6 x 30 - A 4 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Te
30、chnical Standards 1/9972545001 Not for Resale, 04/25/2007 23:55:28 MDTNo reproduction or networking permitted without license from IHS -,-,- Annex A (informative) Bibliography II IS0 8748:1997, Spring-type straight pins - Coiled, heavy duty. 21 IS0 8751:1997, Spring-type straight pins - Coiled, ligh
31、t duty. IS0 8750: 1997(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:55:28 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 8750:1997(E), Q I
32、S0 ICS 21.060.50 DeSCriptOrS: fasteners, steel products, pins (mechanics), straight pins, spring pins, specifications, characteristics, dimensions, designation. Price based on 5 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 23:55:28 MDTNo reproduction or networking permitted without license from IHS -,-,-