1、Designation: D7292 18Standard Specification forExtruded, Compression-Molded, and Injection-Molded BasicShapes of Polyamide-Imide (PAI)1This standard is issued under the fixed designation D7292; the number immediately following the designation indicates the year oforiginal adoption or, in the case of
2、 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.1. Scope*1.1 This specification covers requirements and methods oftest for the material, dimensions, and wo
3、rkmanship ofextruded, compression molded, and injection molded partsmanufactured from PAI.1.2 The properties included in this specification are thoserequired for the compositions covered. Requirements neces-sary to identify particular characteristics important to special-ized applications are descri
4、bed by the classification systemgiven in Section 5.1.3 This specification allows for the use of recycled mate-rials provided that specification requirements based upon thisspecification are met.1.4 The values stated in English units are to be regarded asstandard in all property and dimensional table
5、s. For referencepurposes, SI units and conversion factors are also included.1.5 The following precautionary caveat pertains only to thetest method portion Section 12, of this specification. Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the
6、 responsibility of the userof this standard to establish appropriate safety, health, andenvironmental practices and determine the applicability ofregulatory limitations prior to use.NOTE 1There is no known ISO equivalent to this standard.1.6 This international standard was developed in accor-dance w
7、ith internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standar
8、ds:2D256 Test Methods for Determining the Izod PendulumImpact Resistance of PlasticsD618 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of PlasticsD790 Test Methods for Flexural Properties of Unreinforcedand Reinforced Plastics and Electrical Insulating Materi-
9、alsD792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD883 Terminology Relating to PlasticsD1708 Test Method for Tensile Properties of Plastics by Useof Microtensile SpecimensD3418 Test Method for Transition Temperatures and En-thalpies of Fusion and Cr
10、ystallization of Polymers byDifferential Scanning CalorimetryD3892 Practice for Packaging/Packing of PlasticsD4000 Classification System for Specifying Plastic Materi-alsD5204 Classification System and Basis for Specification forPolyamide-Imide (PAI) Molding and Extrusion MaterialsD7209 Guide for Wa
11、ste Reduction, Resource Recovery, andUse of Recycled Polymeric Materials and Products (With-drawn 2015)33. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 finished product (F), na product that meets thedimensional criteria of Tables A and B in this specification.3.1.2 plate, nfla
12、t stock with thickness greater than316 in.(4.76 mm).1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials.Current edition approved Aug. 1, 2018. Published August 2018. Originallyapproved in 200
13、6. Last previous edition approved in 2012 as D7292 - 12. DOI:10.1520/D7292-18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page on
14、the ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*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 StatesThis international st
15、andard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.13.1
16、.3 recycled plastic shape, na product made from up to100 % recycled plastic.3.1.4 rod, nsolid extruded cylindrical shape with a mini-mum diameter of332 in. (2.38 mm).3.1.5 virgin plastic shape, na shape produced entirely ofplastic resin that has not been melt processed more than once.3.2 Additional
17、Definitions:3.2.1 For definitions of other technical terms pertaining toplastics used in this specification, see Terminology D883 orGuide D7209.4. Applications4.1 Typical applications for these parts are for products thatrequire low coefficient of friction, good thermal resistance, andtoughness up t
18、o 250C. However, usage is not limited to theseapplications. Specific grades are designed for high strength,wear resistance, low coefficient of friction and reinforced forimproved load bearing capacity and non-abrasive wear.5. Classification and Material5.1 Product shape and size as defined in the ap
19、plicablepurchase order.5.2 This specification covers product manufactured as listedin Table S-PAI. Materials included in the designations refer-ence Classification System D5204 callouts where applicable.5.2.1 The PAI material used in the product is normallycategorized by type, grade, and class depen
20、ding on resin andfiller compositions as defined in Table S-PAI.5.3 The type, class, and grade are further differentiatedbased on Table S-PAI, Table A, and dimensional requirements,Table I.5.4 Property Tables:5.4.1 Table S-PAI is used to describe manufactured parts.5.4.2 Table I is used to describe p
21、roducts not included inTable S-PAI via a cell callout that includes the applicable TableS-PAI type and specific properties.5.4.3 To facilitate the incorporation of future or specialmaterials not covered by the Table S-PAI, the “other” category(00) for type, class and grade is shown in the table with
22、 thebasic properties to be obtained from Table I, as they apply.5.4.4 Reinforcements and Additive MaterialsA symbol(single letter) is to be used for the major reinforcement orcombination, or both, along with two numbers which indicatethe percentage of addition by mass with the tolerances astabulated
23、 below. This must be included in all Table I callouts.Symbol Material Tolerance(Based on the Total Mass)C Carbon andgraphite fiber2 %G Glass fiber 2 %L Lubricants (for example,PTFE, graphite, siliconeand molybdenum disulfide)Depends upon material andprocessto be specifiedM Mineral 2 %R Combinations
24、ofreinforcements orfillers, or both3 %5.5 Callout DesignationAone-line system shall be used tospecify PAI parts covered by this specification. The systemuses predefined cells to refer to specific aspects of thisspecification, as illustrated below:5.5.1 Description:5.5.1.1 Example 1Extruded PAI rod:C
25、ELL CALLOUT: S-PAI0111S-PAI01 = Extruded Product made from PAI resin in accordance withTable S-PAI1 = Class: Electrical grade1 = Grade: PAI011M03 as specified in Table S-PAI5.5.1.2 Example 2Product made from injection moldedglass filled PAI material:CELL CALLOUT: S-PAI0231S-PAI02 = Injection molded
26、product made from PAI resin asspecified in Table S-PAI3 = Class: glass reinforced1 = Grade: PAI013G30 as specified in table S-PAI5.5.1.3 Example 3Product not included in Table S-PAI:CELL CALLOUT: S-PAI 0000 1022500S-PA0000 = Molded product made from PAI resin00 = Type Other0 = Class Other0 = Grade O
27、ther1 = Minimum Tensile Strength of 10,000 psi0 = Elongation no requirement2 = Minimum tansile Modulus of 400,000 psi2 = Minimum Flexural Modulus of 550,000 psi5 = Izod Impact specified value of 4.5 ft-lb/in min0 = Minimum glass transition temperature not required0 = other not required5.5.2 The thre
28、e examples illustrate how a one-line, alpha-numeric sequence identify the product composition, commer-cial parameters, and physical characteristics of extruded,compression-molded or injection-molded product. A spacemust be used as a separator between the specification numberand the type designation.
29、 No separators are needed betweentype, class, and grade. When special notes are to be included,such information shall be preceded by a comma. Specialtolerances must be noted at time of order and are inserted afterthe grade in parenthesis and preceded by a comma.D7292 182TABLE S-PAI Additional Detail
30、ed Requirementsfor Extruded, Compression- and Injection-Molded PAI ShapesType Description Class Description Grade ApplicableD5204CalloutUltimateTensileStrength,min. psi (MPa)Elongationat Break,% min.SpecificGravity01ExtrudedShapes1 ElectricalGrade1 PAI021M03 17 000(117)10 1.381.44Other 0 As Specifie
31、d2 BearingGrade1 PAI022L15 12 000(83)3 1.431.48Other 0 As Specified3 GlassFiber1 PAI023G30 18 000(124)2 1.571.62Other 0 As Specified4 CarbonFiber1 PAI023C30 8000 (55) 2 1.441.49Other 0 As Specified0 Other 0 As Specified02InjectionMoldedShapes1 ElectricalGrade1 PAI011M03Other 0 As Specified2 BearingG
32、rade1 PAI012L15Other 0 As Specified3 GlassFiber1 PAI013G30Other 0 As Specified4 CarbonFiber1 PA013C300 Other 0 As Specified03 CompressionMolded1 ElectricalGrade1 PAI000M30 10 000(69)2 1.381.44Other 0 As Specified2 BearingGrade1 PAI000L15 10 000(69)2 1.431.48Other 0 As Specified3 GlassFiberOther 0 As
33、 Specified4 CarbonFiber0 Other 0 As Specified00 Other 0 Other 0 As SpecifiedTABLE A Dimensional Requirements for Extruded PAI RodSize (in.) RoundnessTolerances (in.)Camber,max. (in.)4ft 8ft0.093 +0.003/-0 0.625 2.500.125 +0.003/-0 0.625 2.500.250A0.625 2.500.375A0.375 1.500.500A0.250 1.000.625A0.250
34、 1.000.750A0.250 1.001.000A0.187 0.751.250A0.187 0.751.375A0.125 0.501.750A0.125 0.502.000A0.125 0.50ASupply oversized and machine to size.D7292 183TABLE B Dimensional Requirements for Extruded PAI Sheets and PlatesNOTE 1Squareness requirements listed in 12.7.NOTE 2To convert inches to millimetres,
35、multiply by 25.4Size Thickness (in.) Thickness Tolerance(in.)LengthCamberWidth Bow0.187 n.a. 0.50/4 ft 0.062/2 ft0.250 +0.025/-0 0.50/4 ft 0.062/2 ft0.375 +0.025/-0 0.50/4 ft 0.062/2 ft0.500 +0.025/-0 0.375/4 ft 0.062/2 ft0.625 +0.025/-0 0.375/4 ft 0.062/2 ft0.750 +0.025/-0 0.375/4 ft 0.062/2 ft1.00
36、0 +0.025/-0 0.25/4 ft 0.062/2 ftTABLE I Additional Detailed Requirementsfor Extruded, Compression- and Injection-Molded PAI ShapesDesignationOrderPropertyA01234569B1 Tensilestrength,C,Dpsi,(MPa),minUnspecified 10 000(69)12 000(83)14 000(97)16 000(110)20 000(138)25 000(172)Specifyvalue2 Elongation,C%
37、, minUnspecified 5 10 20 50 100 200 Specifyvalue3 TensileModulus,Cpsi,(MPa),minUnspecified 300 000(2073)400 000(2760)500 000(3448)600 000(4137)800 000(5516)1 000 000(6895)Specifyvalue4 Flexuralmodulus,Epsi,(MPa),minUnspecified 450 000(3100)550 000(3792)650 000(4482)750 000(5171)1 000 000(6895)1 500
38、000(10 343)Specifyvalue5 IzodImpactF,Gft lb/in.,(J/m),minUnspecified 0.8(43)1.0(53)2.0(107)3.0(160)4.5(240)6.0(320)Specifyvalue6 Glasstransitiontemperature(C)Unspecified 270 272 274 276 278 280 Specifyvalue7TobedeterminedUnspecified SpecifyvalueAPhysical property data were determined using injection
39、 molded or extruded (as applicable) and postcured specimens.BIf a specific value is required it must be shown in the call-out.CSee Test Method D638 using the Type I specimen.DMPa 145 = psi.ESee Test Method D790, Method 1, Procedure A.FSee Test Method D256, Method A, using the center portion of a Tes
40、t Method D638, Type I specimen.GJ/m 0.01873 = ft lb in.6. Physical Property Requirements6.1 The physical property values listed within this specifi-cations tables are to be considered minimum specificationvalues. Any requirement for specific test data for a givenproduction lot shall be specified at
41、the time of order. Physicalproperties for products not included in Table S-PAI shall bespecified using Table I for extruded, compression- andinjection-molded products.7. Dimensional Requirements7.1 The type, class, and grade is further differentiated by theuse of Table S-PAI, and dimensional require
42、ments, Tables Aand B. Products shall be produced with the lowest stress levelsfor machined parts and within commercial tolerances asdelineated in Tables A and B. The manner in which thetolerances are obtained is not relevant.7.2 Tubular bar dimensions shall be supplied in the unfin-ished condition,
43、unless otherwise specified at the time of order.7.3 The maximum allowable camber, or bow, or both, shallbe within the limits referenced in Tables A and B.8. Workmanship, Finish, and Appearance8.1 AppearanceThe appearance of products shall be aspublished by the shapes manufacturer.8.2 FinishAll produ
44、cts shall be free of blisters, wrinkles,cracks, gouges, and defects that restrict commercial use of theproduct. Special surface finish shall be supplied only whenspecified in the purchase order or contract.8.3 DefectsAll products shall be free of voids, dirt,foreign material, and embedded particles
45、exceeding132-in.(0.8-mm) maximum diameter as defined below.D7292 1848.3.1 The criteria for determining the internal cleanlinessshall be external visual inspection. A maximum number of twointernal defects per square foot of plate or sheet and one footlength of rod or tubular bar is allowed. Clusters
46、of defects lessthan132-in. (0.8-mm) diameter are to be counted as a singledefect.9. Sampling9.1 Sampling shall be statistically adequate to satisfy therequirements of this specification as applicable.9.2 For purposes of sampling, an inspection lot for exami-nation and tests shall consist of all mate
47、rial of the same type,class, and grade and nominal size submitted for inspection atone time.10. Number of Tests10.1 Routine lot inspection shall consist of all the criteriaspecified in the applicable product tables.10.2 The criteria listed in these product tables and defini-tions are sufficient to e
48、stablish conformity of the shape to thisspecification. When the number of test specimens is not statedin the test method, a single determination is sufficient. If morethan a single determination is made, the results shall beaveraged. The final result shall conform to the requirementsprescribed in th
49、is specification.11. Test Conditions11.1 Conditioning of SpecimensThe specification valuesand dimensions are based on conditioning techniques outlinedin Procedure A of Practice D618.11.2 Standard ConditionsThe tests shall be conducted atthe standard laboratory conditions of 73.4 6 3.6F (23 6 2C)and 50 6 10 % RH.12. Test Methods12.1 Tensile stress at break, elongation at break, and tensilemodulus shall be determined in accordance with Test MethodD638 at a rate of 0.1 in./min.12.2 Glass transition Tg in accordance with Test Metho
