1、Designation: D5204 13D5204 17Standard Classification System for and Basis for SpecificationforPolyamide-Imide (PAI) Molding and Extrusion Materials1This standard is issued under the fixed designation D5204; the number immediately following the designation indicates the year oforiginal adoption or, i
2、n the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope
3、*1.1 This classification system covers polyamide-imide materials suitable for injection molding and extrusion.1.2 The properties included in this classification system are those required to identify the compositions covered. It is possiblethat other requirements are necessary to identify particular
4、characteristics important to specialized applications. The use of suffixesas shown in Section 5 is one way of specifying these requirements.1.3 This standard allows for the use of recycled materials provided that specification requirements based upon this classificationsystem are met.1.4 This classi
5、fication system and subsequent line call-out (specification) is intended to be a means of calling out plasticsmaterials used in the fabrication of end items or parts. It is not intended for the selection of materials. Material selection needs tobe made by those having expertise in the plastics field
6、 after careful consideration of the design and the performance required ofthe part, the environment to which it will be exposed, the fabrication process to be employed, the inherent properties of the materialother than those covered by this classification, and the economics.1.5 The values stated in
7、SI units are to be regarded as the standard. (Reporting in inch-pound units is acceptable.)1.6 The following precautionary caveat pertains only to the test methods portion, Section 11, of this classification system:Thisstandard does not purport to address all of the safety concerns, if any, associat
8、ed with its use. It is the responsibility of the userof this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the applicabilityof regulatory limitations prior to use.NOTE 1There is no known ISO equivalent to this standard.1.7 This international
9、 standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2.
10、 Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials atCommercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulatio
11、nD256 Test Methods for Determining the Izod Pendulum Impact Resistance of PlasticsD257 Test Methods for DC Resistance or Conductance of Insulating MaterialsD618 Practice for Conditioning Plastics for TestingD790 Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electri
12、cal Insulating MaterialsD792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by DisplacementD883 Terminology Relating to Plastics1 This classification system is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.
13、15 on ThermoplasticMaterials.Current edition approved Sept. 1, 2013Dec. 1, 2017. Published September 2013January 2018. Originally approved in 1991. Last previous edition approved in 20112013as D5204 - 11.D5204 - 13. DOI: 10.1520/D5204-13.10.1520/D5204-17.2 For referencedASTM standards, visit theASTM
14、 website, www.astm.org, or contactASTM Customer Service at serviceastm.org. ForAnnual Book ofASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indica
15、tion of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be con
16、sidered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D1525 Test Method for Vicat Softening Temperature of PlasticsD1600 Terminology for Abbrevia
17、ted Terms Relating to PlasticsD1708 Test Method for Tensile Properties of Plastics by Use of Microtensile SpecimensD2863 Test Method for Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics(Oxygen Index)D3641 Practice for Injection Molding Test Specimens of Thermo
18、plastic Molding and Extrusion MaterialsD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsIEEE/ASTM SI-10 Standard for Use of the International
19、System of Units (SI): The Modern Metric System2.2 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 Classification System D5204. The Department of Defense adopted Cla
20、ssificationSystem D5204 on July 27, 1994, and canceled MIL-P-46179A.2.3 SAE Specifications:4AMS 3670B Polyamide-Imide Bar, Rod, and Shapes Molded or ExtrudedAMS 3670/1B Unfilled Polyamide-Imide Bar, Rod and ShapesAMS 3670/2B Polyamide-Imide Bar, Rod and Shapes 20-Graphite-3-Polytetrafluoroethylene F
21、illedAMS 3670/3B Polyamide-Imide Bar, Rod and Shapes 12-Graphite-3-Polytetrafluoroethylene FilledAMS 3670/4C Polyamide-Imide Bar, Rod and Shapes 30 Glass FiberAMS 3670/5C Polyamide-Imide Bar, Rod and Shapes 30 Carbon Graphite Fiber3. Terminology3.1 The terminology used in this classification system
22、is in accordance with Terminology D883 and D1600.3.2 Definitions of Terms Specific to This Standard:3.2.1 polyamide-imide (PAI), na polymer that may be is composed of linkages of all random, or all block, or all alternating,or any combination thereof, amide and imide units in the structural backbone
23、.4. Classification4.1 The polyamide-imide materials shall be are designated PAI, as specified in Terminology D1600.4.2 Polyamide-imide materials are classified into groups that are subdivided into classes and grades as shown in Table PAI.4.2.1 An example of this classification system is as follows:T
24、he designation PAI012L23 would indicate from Table PAI:PAI = Polyamide-imide as found in Terminology D1600,01 (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 in
25、corporation of special materials not covered in Table PAI, the “other” category (0) for group, class, andgrade is shown on the table with the basic properties to be obtained from Table A.4.3 Use Table A to specify physical property requirements for other PAI materials. These properties shall be are
26、shown by asix-character designation. The designation shall consist consists of the letter A and the five digits comprising the cell numbers forthe property requirements in the order as they appear in Table A.4.3.1 Although the values listed are necessary to include the range of properties available
27、in existing materials, this does notinfer that not every possible combination of the properties exists or is obtainable.can be obtained.4.3.2 A single letter shall be used to indicate the major reinforcement or combinations, or both, along with two digits thatindicate the percentage of additive(s) b
28、y total mass, with tolerances tabulated as follows:Asingle letter is used to identify the grade and indicate the major reinforcement or combinations, or both, along with two digitsthat indicate the percentage of additive(s) by total mass.The reinforcement and additive letter designations and associa
29、ted tolerancelevels are shown in Table 1.3 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.4 Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http:/www.sa
30、e.org.D5204 172TABLE 1 Reinforcement-Filler Symbols and TolerancesCategory Material ToleranceC Carbon or graphite fiber reinforced 3 percentage pointsG Glass fiber reinforced 3 percentage pointsL Lubricants 3 percentage pointsM Minerals 3 percentage pointsR Combinations of reinforcements orfillers,
31、or both5 percentage pointsR Combinations of reinforcements orfillers, or both5 percentage points4.3.3 This part of the classification system uses the type and percentage of additive to designate the modification of the basicmaterial. To facilitate this designation, the type and percentage of additiv
32、e can beis frequently shown on the suppliers technicaldata sheet unless it is proprietary in nature. suppliers technical data sheet. If necessary, additional requirements shall be areindicated by use of the suffix part of the system, as given in Section 5.4.3.4 Reinforced, filled, and lubricated ver
33、sions of PAI materials that are not in Table PAI are classified in accordance withTables PAI and A. Table PAI is used to specify the Group or group and class of PAI and Table A is used to specify the propertyrequirements. An example of this classification system for a polyamide-imide material contai
34、ning 40 % glass 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 = elongation, 4 %, min,5 = flexural strength, 269 MPa, min,5 = flexural
35、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 on application, that are not covered by the basic requirements (Table PAI)or cell-table requirements (Table A),
36、 they shall be are indicated through the use of suffixes.5.2 A list of Use the suffixes found in Classification System D4000 (Table 3) are to be used for additional requirements asappropriate.Additional suffixes will be added to Classification System D4000 as test methods and requirements are develo
37、ped andrequested.5.2.1 An example of this classification system using a suffix is as follows:The designation PAI013G30CBXXXPAI013G30 = polyamide-imide material as described in Table PAI,C = melting point / softening point from Classification SystemD4000B = Test Method D1525, Rate A (Vicat), andXXX =
38、 three digit number indicating minimum value, C.5.3 Suffixes for electrical properties, if required, can be are found in Table SE in Supplementary Requirements.theSupplementary Requirements section of this standard.6. General Requirements6.1 Basic requirements from Table A, as they apply, are always
39、 in effect unless these requirements are superseded by specificsuffix requirements, which always take precedence.6.1.1 The material composition shall be uniform and shall conform to the requirements specified herein.7. Detail Requirements7.1 Test specimens for the various materials shall conform to
40、the requirements prescribed in TableAand the suffix requirementsas they apply.7.2 For the purpose of determining conformance, all specified limits in this specification (line callout) based on thisclassification system, are lot averages by round-off, absolute limits, as defined in Practice E29.7.2.1
41、 With the round-offabsolute method, an observed value or a calculated value shall be rounded off to the nearest unit in thedesignated place of figures. The rounded off value shall then is not rounded, but is to be compared directly towith the specifiedlimiting value. Conformance or nonconformance wi
42、th a specification based on this classification system is based on thiscomparison.8. Sampling8.1 Sampling shall be statistically adequate to satisfy requirements of 12.2. A batch or lot of material shall be is defined asmaterial produced in a single compound blend.D5204 1739. Test Specimen9.1 Dry pe
43、llets before molding test specimens. Pellets dried on trays at 149C (300F) in a desiccant air drier for a minimumof 24 h have been found to be satisfactory for injection molding.9.2 Unless otherwise specified, prepare injection and extrusion resins test specimens shall be prepared by injection moldi
44、ng inaccordance with Practice D3641.NOTE 3Typical conditions for molding are melt temperature of 315 to 370C (600 to 700F) and mold temperature of 195 to 215C (380 to 420F),depending on the product. Because of the equipment requirements and difficulty associated with molding PAI, the manufacturer no
45、rmally does all moldingof parts.10. Conditioning10.1 Postcure all test specimens in accordance with the manufacturers instructions.10.2 Condition all test specimens for a minimum of 40 h at 23 6 2C and 50 6 10 % relative humidity 23C and 50 % relativehumidity in accordance with 3.1.2 of Practice D61
46、8 after postcuring and before testing.11. Test Methods11.1 Determine the properties enumerated in this classification system in accordance with the relevant methods as they apply.11.2 Specify methods for reinforcement and additive concentration.12. Certification and Inspection12.1 Inspection and cer
47、tification of the material supplied with reference to a specification based on this classification systemshall be for conformance to the requirements specified herein.12.2 Lot acceptance inspection shall be the basis on which acceptance or rejection of the lot is made and shall consist of thetests l
48、isted, as they apply, as follows: tensile strength at break, tensile elongation at break, and specific gravity.12.3 Periodic check inspection shall consist of the tests specified for all requirements of the material under this classificationsystem. Inspection frequency shall be adequate to ensure th
49、at the material is certifiable in accordance with 12.4NOTE 4If any failure occurs, it is acceptable to retest the material to establish conformity.12.4 Certification shall state that the material meets the requirements of the acceptance tests of this classification system inaccordance withwas manufactured by a process in statistical control, sampled, tested, and inspected in accordance 12.2. Lotaverage values shall be reported for the lot acceptance properties as designated by the classification in accordance with TablePAI.with this classification system,
