1、Designation: B783 10B783 13Standard Specification forMaterials for Ferrous Powder Metallurgy (PM) StructuralParts1This standard is issued under the fixed designation B783; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of
2、 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*Scope1.1 This specification covers a variety of ferrous PM structural materials and includes a classification system or
3、materialdesignation code.The classification system used in this specification includes chemical composition, minimum tensile; 0.2 % offsetyield strength for as-sintered materials and minimum ultimate tensile strength for heat-treated materials (sinter hardened orquenched and tempered). It also conta
4、ins minimum density and maximum coercive field strength requirements for iron-phosphorusmaterials.1.2 Material classification is governed by the designation code which is explained in Appendix X1. The data provided displaytypical mechanical properties achieved under commercial manufacturing procedur
5、es. Physical and mechanical propertyperformance characteristics can change as a result of subsequent processing steps beyond the steps designated in this standard.1.3 With the exception of density values for which the g/cm3 unit is the industry standard, property values stated in inch-poundunits are
6、 the standard. Values in SI units result from conversion in accordance with conversion. IEEE/ASTM SI 10. They may beapproximate and are only for information.2. Referenced Documents2.1 ASTM Standards:2A839 Specification for Iron-Phosphorus Powder Metallurgy (P/M) Parts for Soft Magnetic ApplicationsB
7、243 Terminology of Powder MetallurgyB528 Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) SpecimensB962 Test Methods for Density of Compacted or Sintered Powder Metallurgy (PM) Products Using Archimedes PrincipleB963 Test Methods for Oil Content, Oil-Impregnation Efficiency, and
8、 Interconnected Porosity of Sintered Powder Metallurgy(PM) Products Using Archimedes PrincipleE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE1019 Test Methods for Determination of Carbon, Su
9、lfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys byVarious Combustion and Fusion TechniquesIEEE/ASTM SI 10 American National Standard for Use of the International System of Units (SI): The Modern Metric System2.2 MPIF Standard:3MPIF Standard 35 Materials Standards for PM Structur
10、al PartParts3. Terminology3.1 DefinitionsDefinitions of powder metallurgy terms can be found in Terminology B243.Additional descriptive informationis available in the Related Materials section of Vol 02.05 of the Annual Book of ASTM Standards.4. Ordering Information4.1 Materials for parts conforming
11、 to this specification shall be ordered by material designation code.4.2 Orders for parts under this specification may include the following information:1 This specification is under the jurisdiction of ASTM Committee B09 on Metal Powders and Metal Powder Products and is the direct responsibility of
12、 SubcommitteeB09.05 on Structural Parts.Current edition approved Jan. 1, 2010Nov. 1, 2013. Published December 2010November 2013. Originally approved in 1988. Last previous edition approved in 20042010as B78304. 10. DOI: 10.1520/B0783-10.10.1520/B0783-13.2 For referencedASTM standards, visit theASTM
13、website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from MPIF, 105 College Road East, Princeton, NJ 08540.This document is not an ASTM standard and
14、 is intended only to provide the user of an ASTM standard an indication 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 t
15、he current versionof the standard as published by ASTM is to be considered 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 States14.2.1 Certification and
16、test reports, if required (see Section 11),4.2.2 Test methods and mechanical properties other than strength (see 8.2 and 8.3),4.2.3 Density (see 7.1),4.2.4 Porosity or oil content (see 7.2), and4.2.5 Special packaging if required.5. Materials and Manufacture5.1 Structural parts shall be made by comp
17、acting and sintering metal powders with or without subsequent heat -treating. Partsmay also be made by repressing or repressing and resintering sintered parts, if necessary, with or without subsequent heat treatmentto produce finished parts conforming to the requirements of this specification.6. Che
18、mical Composition6.1 The material shall conform to the requirements of Table 1.6.2 Chemical analysis, if required, shall be performed by methods agreed upon by the producer and the user.6.3 Various analytical test methods are used to determine the chemical composition (see ASTM standards for the app
19、ropriatetest methods) of PM materials. Combustion-infra-red absorption and inert gas fusion methods (Test Methods E1019) are used forthe specific elements carbon, nitrogen, oxygen, and sulfur.6.4 The Chemical Composition Requirements Table (Table 1) designates the limits of metallurgically combined
20、carbon for eachalloy. The combined carbon level can be estimated metallographically for sintered PM steels. When a clear pearlite to ferrite ratiocannot be estimated metallographically, total carbon can be determined using analytical methods (Test Methods E1019). Thiswould include very low carbon le
21、vels (0.08 %), heat treated steels and materials made from prealloyed base powders or diffusionalloyed powders. When reporting carbon levels, the report should identify whether the carbon is metallurgically combined carbonor total carbon and the test method should be identified. While total carbon w
22、ill approximate the combined carbon in manymaterials, free graphite and other carbonaceous material will raise the total carbon level above the level of combined carbon,possibly causing the total carbon content to exceed the combined carbon level specified for the material.7. Physical Properties7.1
23、Density:7.1.1 The user and producer may agree upon a minimum average density for the part or minimum densities for specific regionsof the part, or both, except soft magnetic materials, which require a minimum average density as part of the material specification.7.1.2 Density shall be determined in
24、accordance with Test Method B962.7.2 Porosity:7.2.1 The producer and the user may also agree upon a minimum volume oil content for parts that are to be self-lubricating.7.2.2 Porosity or oil content, or both, shall be determined in accordance with Test Method B963.7.2.3 The producer and the user may
25、 agree upon a functional test for porosity in parts that are to be self-lubricating, or forpermeability where fluid flow must be restricted.8. Mechanical Properties8.1 The guaranteed properties shown in Tables 2-12 are included in the suffix of the material designation code. The code isadopted from
26、MPIF Standard 35. All tensile strengths are read as 103 psi, and are defined as the 0.2 % offset yield strength foras-sintered materials and the ultimate tensile strength for heat-treated materials (sinter hardened or quenched and tempered).Iron-phosphorus materials (Table 3) contain an alphanumeric
27、 suffix and are an exception to this rule. The iron-phosphorus suffixis related to the minimum density and maximum coercive field strength and not the tensile yield strength (see X1.3 and X1.4 fordetails).8.1.1 Materials that are heat treated (sinter-hardened or quenched and tempered) have the numer
28、ic value followed by HT in thesuffix.8.2 The producer and the user should agree upon the method to be used to verify the minimum strength characteristics of thefinished parts. Since it is usually impossible to machine tensile test specimens from these parts, alternative strength tests areadvisable.
29、An example would be measuring the force needed to break teeth off a gear with the gear properly fixtured.8.3 If the tensile properties of the materials are required, standard test bars shall be compacted from the same mixed powderlot, at the density of a critical region in the part, and processed al
30、ong with the parts. When a PM part has a larger ruling sectionthan the test bar being used, the test bar may not be representative of the part.The following procedures are listed with the preferredmethod first.8.3.1 Transverse rupture strength (see Test Method B528) can be related to the minimum ten
31、sile strength by the ratio of typicaltransverse rupture strength to typical tensile strength at the same density as the part, as shown in, or interpolated from the tablescontained in Appendix X1.B783 132TABLE 1 Chemical Composition RequirementsANOTE 1For the Stainless Steels: N1Nitrogen alloyed. Goo
32、d strength, low elongation. N2Nitrogen alloyed. High strength, medium elongation. LLow carbon. Lower strength, highestelongation. HTMartensitic grade, heat treated. Highest strength.Chemical Composition, Mass %MaterialDesignation Iron Copper Carbon NickelMolyb-denumChro-miumMan-ga-neseSilicon Sulfur
33、 Phos-phorus Nitro-gen Colum-bium Oxygen OtherF-0000 Min Bal. . 0.0 . . . . . . . . . . .F-0000 Max Bal. . 0.3 . . . . . . . . . . 2.0F-0005 Min Bal. . 0.3 . . . . . . . . . . .F-0005 Max Bal. . 0.6 . . . . . . . . . . 2.0F-0008 Min Bal. . 0.6 . . . . . . . . . . .F-0008 Max Bal. . 0.9 . . . . . . .
34、 . . . 2.0FY-4500 Min Bal. . 0.00 . . . . . . 0.40 0.00 . 0.00 .FY-4500 Max Bal. . 0.03 . . . . . . 0.50 0.01 . 0.10 0.5FY-8000 Min Bal. . 0.00 . . . . . . 0.75 0.00 . 0.00 FY-8000 Max Bal. . 0.03 . . . . . . 0.85 0.01 . 0.10 0.5FX-1000 Min Bal. 8.0 0.0 . . . . . . . . . . .FX-1000 Max Bal. 14.9 0.3
35、B . . . . . . . . . . 2.0FX-1005 Min Bal. 8.0 0.3B . . . . . . . . . . .FX-1005 Max Bal. 14.9 0.6B . . . . . . . . . . 2.0FX-1008 Min Bal. 8.0 0.6B . . . . . . . . . . .FX-1008 Max Bal. 14.9 B . . . . . . . . . . 2.0FX-1008 Max Bal. 14.9 0.9 . . . . . . . . . . 2.0FX-2000 Min Bal. 15.0 0.0 . . . . .
36、 . . . . . .FX-2000 Max Bal. 25.0 0.3B . . . . . . . . . . 2.0FX-2005 Min Bal. 15.0 0.3B . . . . . . . . . . .FX-2005 Max Bal. 25.0 0.6B . . . . . . . . . . 2.0FX-2008 Min Bal. 15.0 0.6B . . . . . . . . . . .FX-2008 Max Bal. 25.0 0.9B . . . . . . . . . . 2.0FC-0200 Min Bal. 1.5 0.0 . . . . . . . . .
37、 . .FC-0200 Max Bal. 3.9 0.3 . . . . . . . . . . 2.0FC-0205 Min Bal. 1.5 0.3 . . . . . . . . . . .FC-0205 Max Bal. 3.9 0.6 . . . . . . . . . . 2.0FC-0208 Min Bal. 1.5 0.6 . . . . . . . . . . .FC-0208 Max Bal. 3.9 0.9 . . . . . . . . . . 2.0FC-0505 Min Bal. 4.0 0.3 . . . . . . . . . . .FC-0505 Max Ba
38、l. 6.0 0.6 . . . . . . . . . . 2.0FC-0508 Min Bal. 4.0 0.6 . . . . . . . . . . .FC-0508 Max Bal. 6.0 0.9 . . . . . . . . . . 2.0FC-0808 Min Bal. 7.0 0.6 . . . . . . . . . . .FC-0808 Max Bal. 9.0 0.9 . . . . . . . . . . 2.0B783133TABLE 1 ContinuedChemical Composition, Mass %MaterialDesignation Iron C
39、opper Carbon NickelMolyb-denumChro-miumMan-ga-neseSilicon Sulfur Phos-phorus Nitro-gen Colum-bium Oxygen OtherFC-1000 Min Bal. 9.0 0.0 . . . . . . . . . . .FC-1000 Max Bal. 11.0 0.3 . . . . . . . . . . 2.0FN-0200 Min Bal. 0.0 0.0 1.0 . . . . . . . . . .FN-0200 Max Bal. 2.5 0.3 3.0 . . . . . . . . .
40、2.0FN-0205 Min Bal. 0.0 0.3 1.0 . . . . . . . . . .FN-0205 Max Bal. 2.5 0.6 3.0 . . . . . . . . . 2.0FN-0208 Min Bal. 0.0 0.6 1.0 . . . . . . . . . .FN-0208 Max Bal. 2.5 0.9 3.0 . . . . . . . . . 2.0FN-0405 Min Bal. 0.0 0.3 3.0 . . . . . . . . . .FN-0405 Max Bal. 2.0 0.6 5.5 . . . . . . . . . 2.0FN-
41、0408 Min Bal. 0.0 0.6 3.0 . . . . . . . . . .FN-0408 Max Bal. 2.0 0.9 5.5 . . . . . . . . . 2.0FL-4005 Min Bal. . 0.4 . 0.40 . 0.05 . . . . . . .FL-4005 Max Bal. . 0.7 . 0.60 . 0.30 . . . . . . 2.0FL-4205 Min Bal. . 0.4 0.35 0.50 . 0.20 . . . . . . .FL-4205 Max Bal. . 0.7 0.55 0.85 . 0.40 . . . . .
42、. 2.0FL-4400 Min Bal. . 0.0 . 0.75 . 0.05 . . . . . . .FL-4400 Max Bal. . 0.3 . 0.95 . 0.30 . . . . . . 2.0FL-4405 Min Bal. . 0.4 . 0.75 . 0.05 . . . . . . .FL-4405 Max Bal. . 0.7 . 0.95 . 0.30 . . . . . . 2.0FL-4605 Min Bal. . 0.4 1.70 0.45 . 0.05 . . . . . . .FL-4605 Max Bal. . 0.7 2.00 0.60 . 0.3
43、0 . . . . . . 2.0FL-4805 Min Bal. . 0.4 1.20 1.10 . 0.30 . . . . . . .FL-4805 Max Bal. 0.7 1.60 1.40 . 0.50 . . . . . . 2.0FL-48105 Min Bal. . 0.4 1.65 0.85 . 0.30 . . . . . . .FL-48105 Max Bal. . 0.7 2.05 1.15 . 0.55 . . . . . . 2.0FL-4905 Min Bal. . 0.4 . 1.30 . 0.05 . . . . . . .FL-4905 Max Bal.
44、. 0.7 . 1.70 . 0.30 . . . . . . 2.0FL-5208 Min Bal. . 0.6 . 0.15 1.3 0.05 . . . . . . .FL-5208 Max Bal. . 0.8 . 0.30 1.7 0.30 . . . . . . 2.0FL-5305 Min Bal. . 0.4 . 0.40 2.7 0.05 . . . . . . .FL-5305 Max Bal. . 0.6 . 0.60 3.3 0.30 . . . . . . 2.0FLN2C-4005 Min Bal. 1.3 0.4 1.55 0.40 . 0.05 . . . .
45、. . .FLN2C-4005 Min Bal. 1.3 0.4 1.5 0.40 . 0.05 . . . . . . .FLN2C-4005 Max Bal. 1.7 0.7 1.95 0.60 . 0.30 . . . . . . 2.0FLN2C-4005 Max Bal. 1.7 0.7 2.0 0.60 . 0.30 . . . . . . 2.0B783134TABLE 1 ContinuedChemical Composition, Mass %MaterialDesignation Iron Copper Carbon NickelMolyb-denumChro-miumMa
46、n-ga-neseSilicon Sulfur Phos-phorus Nitro-gen Colum-bium Oxygen OtherFLN4C-4005 Min Bal. 1.3 0.4 3.60 0.40 . 0.05 . . . . . . .FLN4C-4005 Min Bal. 1.3 0.4 3.6 0.40 . 0.05 . . . . . . .FLN4C-4005 Max Bal. 1.7 0.7 4.40 0.60 . 0.30 . . . . . . 2.0FLN4C-4005 Max Bal. 1.7 0.7 4.4 0.60 . 0.30 . . . . . .
47、2.0FLN-4205(formerlyLow-AlloySteel)Min Bal. . 0.4 1.35C 0.49 . 0.20 . . . . . . .FLN-4205(formerlyLow-AlloySteel)Min Bal. . 0.4 1.3C 0.49 . 0.20 . . . . . . .FLN-4205 Max Bal. . 0.7 2.50C 0.85 . 0.40 . . . . . . 2.0FLN-4205 Max Bal. . 0.7 2.5C 0.85 . 0.40 . . . . . . 2.0FLN2-4400 Min Bal. . 0.0 1.00
48、 0.65 . 0.05 . . . . . . .FLN2-4400 Min Bal. . 0.0 1.0 0.65 . 0.05 . . . . . . .FLN24400 Max Bal. . 0.3 3.00 0.95 . 0.30 . . . . . . 2.0FLN24400 Max Bal. . 0.3 3.0 0.95 . 0.30 . . . . . . 2.0FLN2-4405(formerlyLow-AlloySteel)Min Bal. . 0.4 1.00 0.65 . 0.05 . . . . . . .FLN2-4405(formerlyLow-AlloyStee
49、l)Min Bal. . 0.4 1.0 0.65 . 0.05 . . . . . . .FLN2-4405 Max Bal. . 0.7 3.00 0.95 . 0.30 . . . . . . 2.0FLN2-4405 Max Bal. . 0.7 3.0 0.95 . 0.30 . . . . . . 2.0FLN44400 Min Bal. . 0.0 3.00 0.65 . 0.05 . . . . . . .FLN44400 Min Bal. . 0.0 3.0 0.65 . 0.05 . . . . . . .FLN44400 Max Bal. . 0.3 5.00 0.95 . 0.30 . . . . . . 2.0FLN44400 Max Bal. . 0.3 5.0 0.95 . 0.30 . . . . . . 2.0FLN44405(formerlyLow-AlloySteel)Min Bal. . 0.4 3.00 0.65 . 0.05 . . . . . . .FLN44405(formerlyLow-AlloySteel)Min Bal. . 0.4 3.0 0.65 . 0.05 . . . . . . .FLN44405 Max Bal. . 0.7 5.00 0.95 . 0
