1、Designation: D 5204 06Standard Classification System forPolyamide-Imide (PAI) Molding and Extrusion Materials1This standard is issued under the fixed designation D 5204; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of l
2、ast revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This classification system covers po
3、lyamide-imide ma-terials suitable for injection molding and extrusion.1.2 The properties included in this classification system arethose required to identify the compositions covered. There maybe other requirements necessary to identify particular charac-teristics important to specialized applicatio
4、ns. These may bespecified by using suffixes as given in Section 5.1.3 This standard allows for the use of recycled materialsprovided that specification requirements based upon this clas-sification system are met.1.4 This classification system and subsequent line call-out(specification) is intended t
5、o be a means of calling out plasticsmaterials used in the fabrication of end items or parts. It is notintended for the selection of materials. Material selectionshould be made by those having expertise in the plastics fieldafter careful consideration of the design and the performancerequired of the
6、part, the environment to which it will beexposed, the fabrication process to be employed, the inherentproperties of the material other than those covered by thisclassification, and the economics.1.5 The values stated in SI units are to be regarded as thestandard. (Reporting in inch-pound units is ac
7、ceptable.)NOTE 1There is no equivalent or similar ISO standard.1.6 The following precautionary caveat pertains only to thetest methods portion, Section 11, of this classification system:This standard does not purport to address all of the safetyconcerns, if any, associated with its use. It is the re
8、sponsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 149 Test Method for Dielectric Breakdown Voltage andDielectric Strength of Electrical Insula
9、ting Materials atCommercial Power FrequenciesD 150 Test Methods for A-C Loss Characteristics andPermittivity (Dielectric Constant) of Solid Electrical Insu-lationD 256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD 257 Test Methods for D-C Resistance or Conductance ofIn
10、sulating MaterialsD 618 Practice for Conditioning Plastics for TestingD 790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating MaterialsD 792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD 883 Terminol
11、ogy Relating to PlasticsD 1525 Test Method for Vicat Softening Temperature ofPlasticsD 1600 Terminology for Abbreviated Terms Relating toPlasticsD 1708 Test Method for Tensile Properties of Plastics byUse of Microtensile SpecimensD 2863 Test Method for Measuring the Minimum OxygenConcentration to Su
12、pport Candle-Like Combustion ofPlastics (Oxygen Index)D 3641 Practice for Injection Molding Test Specimens ofThermoplastic Molding and Extrusion MaterialsD 3892 Practice for Packaging/Packing of PlasticsD 4000 Classification System for Specifying Plastic Mate-rialsE29 Practice for Using Significant
13、Digits in Test Data toDetermine Conformance with SpecificationsIEEE/ASTM SI-10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System1This classification system is under the jurisdiction ofASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20
14、.15 on ThermoplasticMaterials.Current edition approved Sept. 1, 2006. Published September 2006. Originallyapproved in 1991. Last previous edition approved in 2003 as D 5204 - 03.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org.
15、For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.2.
16、2 Military and Federal Specifications and Standards:3MIL-P-46179A Plastic Molding and Extrusion Materials,Polyamide-Imide (PAI)NOTE 2MIL-P-46179A property requirements are the basis of Clas-sification System D 5204. The Department of Defense adopted Classifi-cation System D 5204 on July 27, 1994, an
17、d canceled MIL-P-46179A.2.3 SAE Specifications:4AMS 3670B Polyamide-Imide Bar, Rod, and ShapesMolded or ExtrudedAMS 3670/1B Unfilled Polyamide-Imide Bar, Rod andShapesAMS 3670/2B Polyamide-Imide Bar, Rod and Shapes 20-Graphite-3-Polytetrafluoroethylene FilledAMS 3670/3B Polyamide-Imide Bar, Rod and
18、Shapes 12-Graphite-3-Polytetrafluoroethylene FilledAMS 3670/4C Polyamide-Imide Bar, Rod and Shapes 30Glass FiberAMS 3670/5C Polyamide-Imide Bar, Rod and Shapes 30Carbon Graphite Fiber3. Terminology3.1 The terminology used in this classification system is inaccordance with Terminology D 883 and D 160
19、0.3.2 Definitions of Terms Specific to This Standard:3.2.1 polyamide-imide (PAI), na polymer that may becomposed of linkages of all random, or all block, or allalternating, or any combination thereof, amide and imide unitsin the structural backbone.4. Classification4.1 The polyamide-imide materials
20、shall be designated PAI,as specified in Terminology D 1600.4.2 Polyamide-imide materials are classified into groupsthat are subdivided into classes and grades as shown in TablePAI.4.2.1 An example of this classification system is as follows:The designation PAI012L23 would indicate from Table PAI:PAI
21、 = Polyamide-imide as found in Terminology D 1600,01 (Group) = Injection molding material,2 (Class) = Wear resistance PAI, andL23 (Grade) = Nominal 20 % graphite and 3 % PTFE with the require-ments given in Table PAI.4.2.2 To facilitate the incorporation of special materials notcovered in Table PAI,
22、 the “other” category (0) for group, class,and grade is shown on the table with the basic properties to beobtained from Table A.4.3 Table A shall be used to specify the physical propertyrequirements that shall be shown by a six-character designa-tion. The designation shall consist of the letter A an
23、d the fivedigits comprising the cell numbers for the property require-ments in the order as they appear in Table A.4.3.1 Although the values listed are necessary to include therange of properties available in existing materials, users shouldnot infer that every possible combination of the properties
24、exists or can be obtained.4.3.2 A single letter shall be used to indicate the majorreinforcement or combinations, or both, along with two digitsthat indicate the percentage of additive(s) by total mass, withtolerances tabulated as follows:Category Material ToleranceC Carbon or graphite fiber reinfor
25、ced 63 percentage pointsG Glass fiber reinforced 63 percentage pointsL Lubricants 63 percentage pointsM Minerals 63 percentage pointsR Combinations of reinforcements orfillers, or both65 percentage points4.3.3 This part of the classification system uses the type andpercentage of additive to designat
26、e the modification of thebasic material. To facilitate this designation, the type andpercentage of additive can be shown on the suppliers technicaldata sheet unless it is proprietary in nature. If necessary,additional requirements shall be indicated by use of the suffixpart of the system, as given i
27、n Section 5.4.3.4 An example of this classification system for apolyamide-imide material is as follows:The designation PAI0130G40A61550PAI0130 = polyamide-imide from Table PAI,G40 = glass reinforced at 40 % nominal level,A = Table A physical-property requirements,6 = tensile strength, 172 MPa, min,1
28、 = elongation, 4 %, min,5 = flexural strength, 269 MPa, min,5 = flexural modulus, 11700 MPa, min, and0 = unspecified property.If no properties are specified, the designation would be PAI0130G40A00000.5. Suffixes5.1 When additional requirements are needed, based onapplication, that are not covered by
29、 the basic requirements(Table PAI) or cell-table requirements (Table A), they shall beindicated through the use of suffixes.5.2 A list of suffixes can be found in Classification SystemD 4000 (Table 3) and may be used for additional requirementsas appropriate. Additional suffixes will be added to Cla
30、ssifica-tion System D 4000 as test methods and requirements aredeveloped and requested.5.2.1 An example of this classification system using a suffixis as follows:The designation PAI013G30CAXXXPAI013G30 = polyamide-imide material as described in Table PAI,C = melting point / softening point from Clas
31、sification SystemD 4000,A = Test Method D 1525, Rate A (Vicat), andXXX = three digit number indicating minimum value, C.5.3 Suffixes for electrical properties, if required, can befound in Table SE in Supplementary Requirements.6. General Requirements6.1 Basic requirements from Table A, as they apply
32、, arealways in effect unless these requirements are superseded byspecific suffix requirements, which always take precedence.6.1.1 The material composition shall be uniform and shallconform to the requirements specified herein.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 7
33、00Robbins Ave., Philadelphia, PA 19111-5094, attn: NPODS.4Available from the Society of Automotive Engineers, Inc., 400 CommonwealthDrive, Warrendale, PA 15096.D52040627. Detail Requirements7.1 Test specimens for the various materials shall conformto the requirements prescribed in Table A and the su
34、ffixrequirements as they apply.7.2 For the purpose of determining conformance, all speci-fied limits in this specification (line callout) based on thisclassification system, are lot average by round-off, as defined inPractice E 29.7.2.1 With the round-off method, an observed value or acalculated val
35、ue should be rounded off to the nearest unit in thedesignated place of figures. The rounded off value should thenbe compared directly to the specified limiting value. Conform-ance or nonconformance with a specification based on thisclassification system is based on this comparison.8. Sampling8.1 Sam
36、pling shall be statistically adequate to satisfy re-quirements of 12.2. A batch or lot of material shall be definedas material produced in a single compounding run.9. Test Specimen9.1 Dry pellets before molding test specimens. Pellets driedon trays at 149C 300F in a desiccant air drier for aminimum
37、of 24 h have been found to be satisfactory forinjection molding.9.2 Unless otherwise specified, injection and extrusion res-ins test specimens shall be prepared by injection molding inaccordance with Practice D 3641.NOTE 3Typical conditions for molding are melt temperature of 315 to370C 600 to 700F
38、and mold temperature of 195 to 215C 380 to420F, depending on the product. Because of the equipment requirementsand difficulty associated with molding PAI, the manufacturer normallydoes all molding of parts.10. Conditioning10.1 Postcure all test specimens in accordance with themanufacturers instructi
39、ons.10.2 Condition all test specimens for a minimum of 40 h at23 6 2C and 50 6 5 % relative humidity after postcuring andbefore testing.11. Test Methods11.1 Determine the properties enumerated in this classifica-tion system in accordance with the relevant methods as theyapply.11.2 Specify methods fo
40、r reinforcement and additive con-centration.12. Certification and Inspection12.1 Inspection and certification of the material suppliedwith reference to a specification based on this classificationsystem shall be for conformance to the requirements specifiedherein.12.2 Lot acceptance inspection shall
41、 be the basis on whichacceptance or rejection of the lot is made and shall consist ofthe tests listed, as they apply, as follows: tensile strength atbreak, tensile elongation at break, and specific gravity.12.3 Periodic check inspection shall consist of the testsspecified for all requirements of the
42、 material under thisclassification system. Inspection frequency shall be adequate toensure that the material is certifiable in accordance with 12.4NOTE 4If any failure occurs, the material may be retested to establishconformity.12.4 Certification shall state that the material meets therequirements o
43、f the acceptance tests of this classificationsystem in accordance with 12.2. Lot average values shall bereported for the lot acceptance properties as designated by theclassification in accordance with Table PAI.12.5 A report of the test results shall be furnished whenrequested. The report shall cons
44、ist of the lot-acceptance inspec-tion for the shipment. The results of the most recent periodic-check inspection shall also be furnished when requested by thepurchaser.13. Packaging and Package Marking13.1 For packing, packaging, and package marking, theprovisions of Practice D 3892 shall apply.14.
45、Keywords14.1 extrusion material; line call-out; molding material;polyamide-imideD5204063TABLE PAI Requirements for Polyamide-Imide PlasticsGroup Description Class Description Grade DescriptionTensile Strength,Test MethodD 1708,MPa psi, minTensile Elongation,Test MethodD 1708,%,minSpecific Gravity,Te
46、st Method D 79201 Injection Molding 1 general purpose M03 3 % mineral 158 23 000 9 1.38 to 1.430 other2 wear resistance L15 12 % graphite, 3 % PTFE 124 18 000 5 1.44 to 1.48L23 20 % graphite, 3 % PTFE 114 16 500 5 1.48 to 1.52L20 12 % graphite, 8 % PTFE 97 14 000 4 1.48 to 1.52R35 35 % filled 110 16
47、 000 3 1.56 to 1.600 other3 high strength G30 30 % glass fiber 172 25 000 4 1.59 to 1.63C30 30 % carbon fiber 163 23 600 4 1.46 to 1.500 other02 Extrusion 1 general purpose M03 3 % mineral 158 23 000 9 1.38 to 1.430 other2 wear resistance L15 12 % graphite, 3 % PTFE 124 18 000 5 1.44 to 1.48R35 35 %
48、 filled 110 16 000 3 1.56 to 1.600 other3 high strength G30 30 % glass fiber 172 25 000 4 1.59 to 1.63C30 30 % carbon fiber 163 23 600 4 1.46 to 1.500 other00 Other 0 other 0 otherTABLE A Detailed Requirements for Special Polyamide-ImidesDesignationOrder PropertyA01234569B1 Tensile strength,Cunspeci
49、fied 97 114 124 138 159 172 specify valueMPaDpsi, min 14 000 16 500 18 000 20 000 23 000 25 0002 Elongation,C% , min unspecified 4 5 6 7 8 9 specify value3 Flexural strength,Eunspecified 152 165 193 228 269 290 specify valueMPaDpsi, min 22 000 24 000 28 000 33 000 39 000 42 0004 Flexural modulus,Eunspecified 3860 5030 5520 9660 11 700 15 900 specify valueMPaDpsi, min 560 000 730 000 800 000 1 400 000 1 700 000 2 300 0005 Izod ImpactF,J/mGunspecified 37 53 64 80 101 117 specify valueft lb/in.,
