1、 ENGINEERING STANDARDS Material Specification LIMITED USE EDS-M-7403 Seal Materials Do Not Use on New Program; No Replacement. 6d*88 .* - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program 72P# 957%L: 6#$ . Copyright 2011 General Motors Company All Rights Reserved June 2011 Originating Department: GM
2、Korea Engineering Standards Page 1 of 7 1 Scope 1.1 Purpose. This standard provides a system for specifying significant properties of seal materials as used in products such as radial lip seal and o-rings. It is based on the principle that for critical parts such as seals, it is desirable to specify
3、 the type of the compound and to base as many properties as possible on measurements made on actual parts (or on sections taken from parts). 1.1 The system comprises tabulations of physical and chemical characteristics of seal materials; each represented by a letter and/or number symbol. By the use
4、of various combinations of these in a line call-out, a wide variety of seal materials may be described and classified. 1 P7 1.1 +95 . ., 8t ( &8x J 866 F$ . 3.2 ,h 8: . ,h8:8t E 172P .(# =)0 5:872P =88 ,l8) 9I%P ,h8: dGl) E4%P$ GM KOREA ENGINEERING STANDARDS EDS-M-7403 Copyright 2011 General Motors
5、Company All Rights Reserved June 2011 Page 3 of 7 Version : 4 3.3 Hardness. Shall conform to the number formed by the first two numerals appearing after the compound symbol as follows. 3.3 $ . $80 M8 ,h8: dGl %7 .8t % 8* 3_8# $ 7 ?* 8-,F$ . Hardness symbol / $ dGl IRHD requirement / IRHD 7 ? Hardnes
6、s symbol / $ dGl IRHD requirement / IRHD 7 ? 60 55 ) 65 75 70 ) 80 65 60 ) 70 80 75 ) 85 70 65 ) 75 85 80 ) 90 Remarks: In general, best results are obtained from seals in this range of 65 ) 75. / /x : 8-L958p) 65 ) 758 $* J# 6d*8&8 98t 0* !A!$ . 3.4 Tensile Strength. As determined by ASTM D412, sha
7、ll not be less than the value indicated by the tensile strength symbol. 3.4 88 I$ . 4G -8t ASTM D412 8x =l9F+ , 6x( 88I$ dGl4 !A!# F.($ 6 F$ . Tensile strength symbol / 88 I$ dGl Minimum tensile strength / 2 88 I$ Tensile strength symbol / 88 I$ dGl Minimum tensile strength / 2 88 I$ Metric / -,Bd-E
8、4 Customary / B195E4 MPa PSi Metric / -,Bd-E4 Customary / B195E4 MPa PSi 050 07 5.0 700 055 08 5.5 800 070 10 7.0 1000 085 12 8.5 1200 095 14 9.5 1400 110 16 11.0 1600 125 18 12.5 1800 140 20 14.0 2000 150 22 15.0 2200 165 24 16.5 2400 180 26 18.0 2600 195 28 19.5 2800 205 30 20.5 3000 3.5 Compressi
9、on Set. ASTM D395, Method B (Test temperature is same to table 2, 25% Compression, Test hour 70H). 3.5 75 6 :888 . ASTM D395, - B (4G 7$# E 2 7t % 8F+ , 25% 68 , 4G 48 70H). Compression set symbol / 75 6 :888 dGl Compression set requirement (%) / 75 6 :888 7 9 (%) Compression set symbol / 75 6 :888
10、dGl Compression set requirement (%) / 75 6 :888 7 9 (%) C1 10 max. / $4 10. C4 40 max. / $4 40. C2 20 max. / $4 20. C5 50 max. / $4 50. C3 30 max. / $4 30. C6 60 max. / $4 60. Remarks: In no case should compression set exceed 60 percent. / /x : 60%* :8888t 862T 6| %P$ . GM KOREA ENGINEERING STANDARD
11、S EDS-M-7403 Copyright 2011 General Motors Company All Rights Reserved June 2011 Page 4 of 7 Version : 4 3.6 Hardness Change. Shall be evaluated on test pieces cut from seals after immersion in ASTM reference fluid according to ASTM D471 or after heat aging according to ASTM D573 and shall conform t
12、o the values indicated by the hardness change symbol, as follows. 3.6.1 Symbol (Example). DX 102. D X 102 Range of hardness change Test media Hardness change symbol prefix letter 3.6.2 Test Media. Test shall be performed in the test media shown by the second digit of the hardness change symbol. (Tim
13、e of immersion shall be 70 hours, unless otherwise specified and temperature of test media shall conform to Table 2.) Symbol Test media A Air X ASTM Oil No.1 Y ASTM Oil No.2 Z ASTM Oil No.3 3.6.3 Range of Hardness Change. Values of hardness change shall be five times each of the numerals shown. A de
14、crease, or minus value is indicated when the numeral appears to the left of zero(0) which is used to separate decrease and increase in hardness change values. Correspondingly all digits appearing to the right of the zero(0) indicate hardness increase. For example: Symbol Hardness change (IRHD) 102 (
15、-5) ) +10 210 (-10) ) (-5) 002 0 ) +10 014 +5 ) +20 300 (-15) ) 0 3.6.4 Symbol (Example). A specification requiring hardness change in more than one test media is written as follows. D X001 D Z102 3.6 $ -G . ASTM D471 7 &d* ASTM E:4767 $(,! ASTM D573 7 &d( )d 47( “G* 4A G 6d*8* 8(2P +& 4D7 $4F $-G*
16、D4F$ . $80 M8t $-G dGl4 !A!# F0 8?F6 F$ . 3.6.1 dGl (78 88x 7 , F6* 72T8p) F$ . 5.3 1 -C -L)X . GM 8-LE:47 8F 9P%P .E8! 8*8 4G D8t ., 8-LE:47 9I%P 4G 8x 7 98x +94P6 F+ , 61 )= 987 :04 .2P8 388x -O6x6 F$ . &H88 , d# , 22e , 9P9 )9I ,* /D# 21: &%0 4)%P 6&F -8($ -P2%T 7 , 1)7 388x -O6x6 F$ . $* F84 6#
17、F , 8-L958p) 4 4=8x F6 F$ . -$8 GE84 6# F , )=8# 38%L: 68t 9PE8 61 )= 987 +& F$- 4G 8x -L.) 3LFF 0* ,l2PGF6 F$ . 8. 77 86 :04 .2P7t )=888 F87 8F $%P : 4G 8x 44F 3L 8$ . 5.4 FF2P# 6| %P$ . GM KOREA ENGINEERING STANDARDS EDS-M-7403 Copyright 2011 General Motors Company All Rights Reserved June 2011 Pa
18、ge 7 of 7 Version : 4 5.5 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemical composition of an existing product has occurred, a complete copy of the Material Safety Data Sheet/Safety Data Sheet must be submitted in compliance with the
19、 Globally Harmonized System of Classification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDS requirements. In addition, product MSDS/SDS submissions must be in compliance with specific country General Motors TMC003 Material Safety Data Sheet/Safety Data Sheet guidanc
20、e documents where available. 5.6 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 6 Approved Sources Engineering qualifications of an approved source are required for this standard. Only sources listed in the GM Mat
21、erials File under this standard number have been qualified by Engineering as meeting the requirements of this standard. For other GM locations, the responsible Engineering group should be contacted to obtain the approved source in that individual country. 7 Notes 7.1 Glossary. Not applicable. 7.2 Ac
22、ronyms, Abbreviations, and Symbols. GHS Globally Harmonized System MSDS Material Safety Data Sheet SDS Safety Data Sheet 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per EDS-M-7403 9 Release and Revisions This standard was originated in O
23、ctober 1994. It was first approved by Engineering Standard Committee in October 1994. It was first published in October 1994. 5.5 ,p:6|98.(8* / 6|98.(8* (MSDS/SDS). 49PE8 )= D# d97 )=%L# 9PE ! GF,p: 92e8 -%P 7 , GF ,p: .* y E47 4F 2l 9G 43B (GHS) D# 5 :7!- ,p:6|98.(8* / 6|98.(8* 7 1F8x +9F# ,p:6|98.
24、(8* / 6|98.(8* 9PF6+ F$ . 4958p) 9PE8 ,p:6|98.(8* / 6|98.(8*# GM8 ,p:6|98.(8* / 6|98.(8*7 4F :?8 TMC0038 7 1F8x :43LF6+ F$ . 5.6 ., E:47 9P4%P +& 8:&8t GMW3059 (8TF,p: 179P )8 9P* &d(6 F$ . 6 38 6= 8 E:48t 38%P 6=7 $4F d3T95 :8x 7F$ . 8 E:47 8F d3T958 :8 7x*%P GM 88 +2l7 !7(%P 6=+8 8 E:48 7 1F8x 94A
25、$ . $* :7!7 88?F GM 8 7 , F$- 4-) 38%P 6= 9I.(* 83LFd 88F2P# F$- :04 .2P7t GE8F6 F$ . 7 768 9I8 7.1 98,l 76 . F$-1F 68 . 7.2 66 -C dGl . GHS Globally Harmonized System MSDS Material Safety Data Sheet SDS Safety Data Sheet 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T &# $80 M8 EdF$ . Material per EDS-M-7403
26、 9 9P9I -C P9I 8)Y ., E:48t 1994“x 1087 E:4 -Gl4 .7 %L6 , d3TE:41,h7 8F 1994 “x 10 87 38%L6$ . ., E:48t 1994 “x 10 87 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 4 JUN 2011 Apply new Engineering Standard Template. Limited use with no replacement (Polymer / Organic Material Lab Team) / 4 d3TE:4 64 957 . F9I957 ($4=E:4 68 ) =* (G)8*4G D4 )
