1、 _ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising ther
2、efrom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this
3、publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-49
4、70 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J200_201506 SURFACE VEHICLE RECOMMENDED PRACTICE J200 JUN2015 Issued 1962-05 Rev
5、ised 2015-06 Superseding J200 DEC2011 Classification System for Rubber Materials RATIONALE Added SAE J2979 for Compression Stress Relaxation as an available suffix in Table 4. Acronym for Compression Stress Relaxation added to table 3. Section 7.1.1 provides a method to use “F” and “SR” callouts tha
6、t are unavailable in the suffix requirements tables 6AA thru 6KK, since round robins are not available to add these new or revised suffix requirements to J200. Section 8.4 is an example describing how to use “SR” suffix since CSR usually is run as multiple data points at different time intervals to
7、develop a sealing force degradation curve. FOREWORD The original version of this SAE Recommended Practice was prepared jointly by the Society of Automotive Engineers and the American Society for Testing and Materials and bore the designation SAE J200/ANSI/ASTM D 2000. This document superseded and re
8、placed SAE J14/ASTM D 735 and was intended to be used as a source of material quality “line call-out” specifications on procurement documents and drawings. This Recommended Practice is now under the sole jurisdiction of the SAE Committee on Automotive Rubber Specifications and bears the designation
9、SAE J200. This document is based on basic physical properties of rubber materials obtained directly from standard compression molded test specimens. Test specimens may be fashioned from finished products or by alternate methods. However, test specimens so prepared may be affected by forming of the p
10、roduct or sample and/or by shaping them for testing. Therefore, test results prepared from finished products or by alternate methods may not duplicate values obtained from standard test specimens. 1. SCOPE This classification system tabulates the properties of vulcanized rubber materials (natural ru
11、bber, reclaimed rubber, synthetic rubbers, alone or in combination) that are intended for, but not limited to, use in rubber products for automotive applications. NOTE 1: The SAE Committee on Automotive Rubber Specifications (CARS) has the sole responsibility for SAE J200. CARS Works closely with an
12、d receives input from ASTM Subcommittee D11.30 on Classification of Rubber Compounds with the goal to keep SAE J200 and ASTM D 2000 technically equivalent. Candidate materials presented for development of new tables or for inclusion in Tables A1 or A2 of SAE J200 or Table X1.1 of ASTM D 2000 shall b
13、e initiated with the SAE CARS Committee. The procedure to be followed is detailed in Appendix C of SAE J200. SAE INTERNATIONAL J200 Revised JUN2015 Page 2 of 62 NOTE 2: This document may serve many of the needs of other industries in much the same manner as SAE numbered steels. It must be remembered
14、, however, that this system is subject to revision when required by automotive needs. It is recommended that the latest revision always be used. This document is based on the premise that all rubber materials intended for use in rubber products can be arranged into characteristic designations. These
15、 designations are determined by types, based on resistance to heat aging, and classes, based on resistance to swelling by oil. Basic levels are thus established which, together with values describing additional requirements, permit complete description of the quality of all rubber materials. In all
16、cases where provisions of this document would conflict with those of the detailed specifications for a particular product, the latter shall take precedence. NOTE 3: When the rubber product is to be used for purposes where the requirements are too specific to be completely prescribed by this classifi
17、cation system, it is necessary for the purchaser to consult the supplier in advance to establish the appropriate properties, test methods, and specification test limits. 1.1 Purpose 1.1.1 The purpose of this document is to provide guidance to the engineer in the selection of practical, commercially
18、available rubber materials, and further to provide a method for specifying these materials by the use of a simple line call-out designation. 1.1.2 This document was developed to permit the addition of descriptive values for future rubber materials without complete reorganization of the classificatio
19、n system and to facilitate the incorporation of future new methods of test to keep pace with changing industry requirements. 2. REFERENCES 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issu
20、e of SAE publications shall apply. 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. SAE J2979 Test Method for Vulcanized Rubber and Thermoplastic Elasto
21、mer Determination of Compressive Stress Relaxation (CSR) Response 2.1.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org ASTM D 395 Test Methods for Rubber Property - Compression Test ASTM D 4
22、12 Test Methods for Rubber Properties in Tension ASTM D 429 Test Methods for Rubber Property - Adhesion to Rigid Substrates ASTM D 430 Test Methods for Rubber Deterioration - Dynamic Fatigue ASTM D 471 Test Methods for Rubber Property - Effect of Liquids ASTM D 573 Test Methods for Rubber Deteriorat
23、ion in an Air Oven ASTM D 575 Test Methods for Rubber Properties in Compression ASTM D 624 Test Methods for Rubber Property - Tear Resistance SAE INTERNATIONAL J200 Revised JUN2015 Page 3 of 62 ASTM D 865 Test Methods for Rubber Deterioration by Heating in Air (Test Tube Enclosure) ASTM D 925 Test M
24、ethods for Rubber Property - Staining of Surfaces (Contact, Migration, and Diffusion) ASTM D 945 Test Methods for Rubber Properties in Compression or Shear (Mechanical Oscillograph) ASTM D 1053 Test Method for Rubber Property - Stiffening at Low Temperature; Flexible Polymers and Coated Fabrics ASTM
25、 D 1149 Standard Test Method for Rubber Deterioration - Surface Ozone Cracking in a Chamber ASTM D 1171 Test Method for Rubber Deterioration - Surface Ozone Cracking Outdoors or Chamber (Triangular Specimens) ASTM D 1329 Test Method for Evaluating Rubber Property - Retraction at Low Temperatures (TR
26、 Test) ASTM D 1349 Practice for Rubber - Standard Temperatures for Testing ASTM D 1418 Practice for Rubber and Rubber Lattices - Nomenclature ASTM D 2137 Test Methods for Rubber Property - Brittleness Point of Flexible Polymers and Coated Fabrics ASTM D 2240 Test Method for Rubber Property - Duromet
27、er Hardness ASTM D 3183 Practice for Rubber - Preparation of Pieces for Test Purposes from Products 2.1.3 ISO Publications Available from American National Standards Institute, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ISO 162 Rubber and Latices - Nomenclature IS
28、O 17025 General Requirements for the Competence of Testing and Calibration Laboratories 3. TYPE AND CLASS 3.1 The prefix letter M shall be used to indicate that this classification system is based on SI units. NOTE 4: Call-outs not prefixed by the letter M refer to an earlier classification system b
29、ased on U.S. customary units. This was published in editions prior to 1979. 3.2 Rubber materials shall be designated on the basis of type (heat aging resistance) and class (oil swelling resistance). Type and class are each indicated by letter designations as shown in Tables 1 and 2 and illustrated i
30、n 8.1. Type is the first letter after the grade number and class is the second letter. See Appendix A for the types of polymers most often used to meet the specification. SAE INTERNATIONAL J200 Revised JUN2015 Page 4 of 62 Table 1 - Basic requirements for establishing type by temperature Type Test T
31、emperature, C A 70 B 100 C 125 D 150 E 175 F 200 G 225 H 250 J 275 K 300 Table 2 - Basic requirements for establishing class by volume swell Class Volume Swell, max, % A no requirement B 140 C 120 D 100 E 80 F 60 G 40 H 30 J 20 K 10 3.3 Type is based on changes in tensile strength of not more than 3
32、0%, elongation of not more than -50%, and hardness of not more than 15 points after heat aging for 70 h at an appropriate temperature. The temperatures at which these materials shall be tested for determining type are listed in Table 1. 3.4 Class is based on the resistance of the material to swellin
33、g in IRM 903 oil after 70 h immersion at a temperature determined from Table 1, except that a maximum temperature of 150 C (the upper limit of oil stability) shall be used. Limits of swelling for each class are shown in Table 2. NOTE 5: The selection of type based on heat aging resistance is underst
34、ood to be indicative of the inherent heat aging resistance that can be normally expected from commercial compositions. Differences in severity of two approved heat aging test methods (ASTM D 865 and D 573) may invalidate direct comparison between those classes of rubber material not tested by the sa
35、me method. Likewise, choice of class is based on the range of volume swell normally expected from such commercial compositions as established by type. The fact that a type and class of material is listed under Basic Requirements, indicates that materials that meet these requirements for heat aging a
36、nd oil swelling resistance are commercially available. NOTE 6: ASTM Oils No. 1, 2 and 3 have been replaced by IRM 9011, IRM 9021, and IRM9031(last number for each IRM denotes the ASTM oil replaced). Comparison of the effects of each new IRM oil on most elastomers produces a close correlation, but ma
37、y not necessarily produce the same property change as the oil replaced. Questions regarding IRM oils should be directed to ASTM D 11.15. 1Available from R.E. Carroll, P.O. Box 139, Trenton, NJ 08801. SAE INTERNATIONAL J200 Revised JUN2015 Page 5 of 62 NOTE 7: Most oil aged data in the SAE J200 table
38、s were developed with ASTM Oil #3 and are to be used as a guideline for material selection. Continued conformance will be based on testing in IRM903 oil. Modified requirements may be agreed upon between the customer and the material supplier and be specified by use of a “Z” suffix. 3.5 The letter de
39、signations shall always be followed by a three-digit number to specify the hardness and the tensile strength - for example, 505. The first digit indicates durometer hardness, for example, 5 for 50 5, 6 for 60 5. The next two digits indicate the minimum tensile strength - for example, 05 for 5 MPa, 1
40、4 for 14 MPa. Correlation of available materials for desired hardness and tensile strength is obtained through the elongation values (see 6.2). 4. GRADE NUMBERS, SUFFIX LETTERS, AND NUMBERS 4.1 Grade Numbers Since the basic requirements do not always sufficiently describe all the necessary qualities
41、, provision is made for deviation or adding requirements through a system of prefix grade numbers, suffix letters, and suffix numbers. Grade No. 1 indicates that only the basic requirements are compulsory and no suffix requirements are permitted. Grades other than No. 1 are used for expressing devia
42、tions or additional requirements. A grade number is written as a material prefix number preceding the letters for type and class (see 8.1). Grade No. 1 is always an available suffix grade number, and thus is not referenced in the last column of each basic requirement table. 4.2 Suffix Letters The su
43、ffix letters that may be used together with their meaning, appear in Table 3. 4.3 Suffix Numbers Each suffix letter should preferably be followed by two suffix numbers (see Note 9 in 7.1). The first suffix number always indicates the method of test; time of test is part of the method and is taken fr
44、om the listings in Table 4. The second suffix number, if used, always indicates the temperature of test and is taken from Table 5. Where three-digit numbers are required, a dash () is used for separation, for example: A110; B410; F111. Table 3 - Meaning of suffix letters Suffix Letter Test Required
45、A Heat Aging Resistance B Compression Set C Ozone or Weather Resistance D Compression-Deflection Resistance EA Fluid Resistance (Aqueous) EF Fluid Resistance (Fuels) EO Fluid Resistance (Oils and Lubricants) F Low-Temperature Resistance G Tear Resistance H Flex Resistance J Abrasion Resistance K Adh
46、esion M Flammability Resistance N Impact Resistance P Staining Resistance R Resilience SR Compression Stress Relaxation Z Any special rubber material requirement which shall be specified in detail SAE INTERNATIONAL J200 Revised JUN2015 Page 6 of 62 Table 4 - SAE Flexible Polymers and Coated Fabrics
47、ASTM D 1171Test Method for Rubber DeteriorationSurface Ozone Cracking Outdoors or Chamber (Triangular Specimens) ASTM D 1329Test Method for Evaluating Rubber PropertyRetraction at Low Temperatures (TR Test) ASTM D 1349Practice for RubberStandard Temperatures for Testing ASTM D 1418Practice for Rubbe
48、r and Rubber LatticesNomenclature ASTM D 2137Test Methods for Rubber PropertyBrittleness Point of Flexible Polymers and Coated Fabrics ASTM D 2240Test Method for Rubber PropertyDurometer Hardness SAE INTERNATIONAL J200 Revised JUN2015 Page 8 of 62 ASTM D 3183Practice for RubberPreparation of Pieces
49、for Test Purposes from Products 2. Use ozone chamber exposure method of ASTM Method D 1149, Method B, Procedure B4. 3. ASTM Method D 1171, Weather Test, is 6 weeks duration. Test area and time of year to be agreed upon by the purchaser and the manufacturer. 4. Use ozone chamber exposure method of ASTM Method D 1149, Method B, Procedure B2. 5. Distilled water shall be used. Volume increase by water displacement method,
