1、Designation: D5204 11D5204 13Standard Classification System forPolyamide-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, in the case of revision, the yea
2、r 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 Department of Defense.1. Scope*1.1 This classification system cove
3、rs 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 characteristics important to special
4、ized 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 classification system and subsequent line
5、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 after careful consideration of the
6、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 SI units are to be regarded as the s
7、tandard. (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, associated with its use. It is the responsi
8、bility of the userof this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations priorto use.NOTE 1There is no known ISO equivalent to this standard.2. Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown V
9、oltage and Dielectric Strength of Solid Electrical Insulating Materials atCommercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical InsulationD256 Test Methods for Determining the Izod Pendulum Impact Resistance of PlasticsD2
10、57 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 Electrical Insulating MaterialsD792 Test Methods for Density and Specific Gravity (Relative
11、 Density) of Plastics by DisplacementD883 Terminology Relating to PlasticsD1525 Test Method for Vicat Softening Temperature of PlasticsD1600 Terminology for Abbreviated Terms Relating to PlasticsD1708 Test Method for Tensile Properties of Plastics by Use of Microtensile SpecimensD2863 Test Method fo
12、r Measuring the Minimum Oxygen Concentration to Support Candle-Like Combustion of Plastics(Oxygen Index)1 This classification system is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved
13、Feb. 15, 2011Sept. 1, 2013. Published March 2011September 2013. Originally approved in 1991. Last previous edition approved in 20062011as D5204 - 06.D5204 - 11. DOI: 10.1520/D5204-11.10.1520/D5204-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service
14、 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 indication of what changes have been made to the previous ver
15、sion. 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 considered the official document.*A Summary of Changes sec
16、tion appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D3641 Practice for Injection Molding Test Specimens of Thermoplastic Molding and Extrusion MaterialsD3892 Practice for Packaging/Packing of Plasti
17、csD4000 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 System of Units (SI): The Modern Metric System2.2 Military and Federal Specifications
18、 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 ClassificationSystem D5204 on July 27, 1994, and canceled MIL-P-46179A.2.3 SAE Specifica
19、tions: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 FilledAMS 3670/3B Polyamide-Imide Bar, Rod and Shapes 12-Graphite-3-Polytetrafluoroeth
20、ylene 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 is in accordance with Terminology D883 and D1600.3.2 Definitions of Terms Specific to
21、 This Standard:3.2.1 polyamide-imide (PAI), na polymer that may be composed of linkages of all random, or all block, or all alternating, orany combination thereof, amide and imide units in the structural backbone.4. Classification4.1 The polyamide-imide materials shall be designated PAI, as specifie
22、d 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:The designation PAI012L23 would indicate from Table PAI:PAI = Polyamide-imide as found in Ter
23、minology 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 incorporation of special materials not covered in Table PAI, the “other” category (0) for grou
24、p, 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 shown by asix-character designation. The designation shall consist of the letter A and the five
25、digits comprising the cell numbers for theproperty 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 in existing materials, this does notinfer that every possible combination of the properties exists or is
26、obtainable.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) by total mass, with tolerances tabulated as follows:Category Material ToleranceC Carbon or graphite fiber reinforced 3 percent
27、age pointsG Glass fiber reinforced 3 percentage pointsL Lubricants 3 percentage pointsM Minerals 3 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 modificatio
28、n of the basicmaterial. To facilitate this designation, the type and percentage of additive can be shown on the suppliers technical data sheetunless it is proprietary in nature. If necessary, additional requirements shall be indicated by use of the suffix part of the system,as given in Section 5.4.3
29、.4 An example of this classification system for a polyamide-imide material is as follows: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 Commonwea
30、lth Dr., Warrendale, PA 15096-0001, http:/www.sae.org.D5204 132The 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 str
31、ength, 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 on application, that are not covered by the basic requirements (Table PAI)or c
32、ell-table requirements (Table A), they shall be indicated through the use of suffixes.5.2 A list of suffixes found in Classification System D4000 (Table 3) are to be used for additional requirements as appropriate.Additional suffixes will be added to Classification System D4000 as test methods and r
33、equirements are developed and requested.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, R
34、ate A (Vicat), andXXX = three digit number indicating minimum value, C.5.3 Suffixes for electrical properties, if required, can be found in Table SE in Supplementary Requirements.6. General Requirements6.1 Basic requirements from Table A, as they apply, are always in effect unless these requirements
35、 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 the requirements prescribed in Table
36、Aand 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, as defined in Practice E29.7.2.1 With the round-off method, an observed value or a ca
37、lculated value shall be rounded off to the nearest unit in thedesignated place of figures. The rounded off value shall then be compared directly to the specified limiting value. Conformanceor nonconformance with a specification based on this classification system is based on this comparison.8. Sampl
38、ing8.1 Sampling shall be statistically adequate to satisfy requirements of 12.2.Abatch or lot of material shall be defined as materialproduced in a single compound blend.9. Test Specimen9.1 Dry pellets before molding test specimens. Pellets dried on trays at 149C (300F) in a desiccant air drier for
39、a minimumof 24 h have been found to be satisfactory for injection molding.9.2 Unless otherwise specified, injection and extrusion resins test specimens shall be prepared by injection molding inaccordance with Practice D3641.NOTE 3Typical conditions for molding are melt temperature of 315 to 370C (60
40、0 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 normally does all moldingof parts.10. Conditioning10.1 Postcure all test specimens in accordance with the manufact
41、urers instructions.10.2 Condition all test specimens for a minimum of 40 h at 23 6 2C and 50 6 10 % relative humidity after postcuring andbefore testing.11. Test Methods11.1 Determine the properties enumerated in this classification system in accordance with the relevant methods as they apply.11.2 S
42、pecify methods for reinforcement and additive concentration.D5204 13312. Certification and Inspection12.1 Inspection and certification 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
43、acceptance inspection shall be the basis on which acceptance or rejection of the lot is made and shall consist of thetests listed, 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 specifi
44、ed for all requirements of the material under this classificationsystem. Inspection frequency shall be adequate to ensure that 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 stat
45、e that the material meets the requirements of the acceptance tests of this classification system inaccordance with 12.2. Lot average values shall be reported for the lot acceptance properties as designated by the classification inaccordance with Table PAI.12.5 A report of the test results shall be f
46、urnished when requested. The report shall consist of the lot-acceptance inspection forthe shipment. The results of the most recent periodic-check inspection shall also be furnished when requested by the purchaser.13. Packaging and Package Marking13.1 For packing, packaging, and package marking, the
47、provisions of Practice D3892 shall apply.14. Keywords14.1 extrusion material; line call-out; molding material; polyamide-imideD5204 134TABLE PAI Requirements for Polyamide-Imide PlasticsGroup Description Class Description Grade DescriptionTensile Strength,Test MethodD1708,MPa (psi), minTensile Elong
48、ation,Test MethodD1708, %, minSpecific Gravity,Test Method D79201 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
49、 % PTFE 97 (14 000) 4 1.48 to 1.52R35 35 % filled 110 (16 000) 3 1.56 to 1.600 other3 high strength G30 30 % glass fiber 172 (25 000) 4 1.59 to 1.633 high strength G30 30 % glass fiber 200 (29 000) 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 1.48L23 20 % graphite, 3 % PTFE 114 (16 500) 5 1.48 to 1.52R35 35 % filled 110 (16 000) 3 1.56 to 1.600 other3 high strength G30 30 % glass fiber
