1、Designation: B 783 04Standard Specification forMaterials for Ferrous Powder Metallurgy (P/M) StructuralParts1This standard is issued under the fixed designation B 783; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of las
2、t revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers a variety of ferrous P/Mstructural materials and includes a classification system ormaterial d
3、esignation code. The classification system used inthis specification includes chemical composition, minimumtensile; 0.2 % offset yield strength for as-sintered materials andminimum ultimate tensile strength for heat-treated materials(sinter hardened or quenched and tempered). It also containsminimum
4、 density and maximum coercive field strength re-quirements for iron-phosphorus materials. Material classifica-tion is governed by the designation code which is explained inAppendix X1. The data provided display typical mechanicalproperties achieved under commercial manufacturing proce-dures. Physica
5、l and mechanical property performance charac-teristics can change as a result of subsequent processing stepsbeyond those designated in this standard. These changes couldimprove or degrade the properties.1.2 Property values stated in inch-pound units are thestandard. Conversion factors to SI units ma
6、y be approximate.2. Referenced Documents2.1 ASTM Standards:2A 839 Specification for Iron-Phosphorus Powder Metal-lurgy (P/M) Parts for Soft Magnetic ApplicationsB 243 Terminology of Powder MetallurgyB 328 Test Method for Density, Oil Content, and Intercon-nected Porosity of Sintered Powder Metal Str
7、uctural Partsand Oil-Impregnated BearingsB 528 Test Method for Transverse Rupture Strength ofMetal Powder SpecimensE 8 Test Methods for Tension Testing of Metallic MaterialsE 1019 Test Methods for Determination of Carbon, Nitro-gen and Oxygen in Iron, Nickel, and Cobalt Alloys2.2 Other Standard:MPIF
8、 Standard 35 Materials Standard for P/M StructuralParts33. Terminology3.1 DefinitionsDefinitions of powder metallurgy termscan be found in Terminology B 243. Additional descriptiveinformation is available in the Related Materials section of Vol02.05 of the Annual Book of ASTM Standards.4. Ordering I
9、nformation4.1 Materials for parts conforming to this specification shallbe ordered by material designation code.4.2 Orders for parts under this specification may include thefollowing information:4.2.1 Certification, if required (see Section 11),4.2.2 Test methods and mechanical properties other than
10、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 pressing and sinteringmetal powders with or without subsequent heat treating. Partsmay also be made by
11、repressing or repressing and resinteringsintered parts, if necessary, with or without subsequent heattreatment to produce finished parts conforming to the require-ments of this specification.6. Chemical Composition6.1 The material shall conform to the requirements of Table1.6.2 Chemical analysis, if
12、 required, shall be made by meth-ods agreed upon by the producer and the user.6.3 Various analytical test methods are used to determinethe chemical composition (see ASTM standards for the appro-priate test methods) of P/M materials. Combustion-infra-red1This specification is under the jurisdiction o
13、f ASTM Committee B09 on MetalPowders and Metal Powder Products and is the direct responsibility of Subcom-mittee B09.05 on Structural Parts.Current edition approved May 1, 2004. Published June 2004. Originallyapproved in 1988. Last previous edition approved in 1999 as B 783 99e1.2For referenced ASTM
14、 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 onthe ASTM website.3Available from MPIF, 105 College Road East, Princeton, NJ 08540.1Copyright ASTM
15、International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE 1 Chemical Composition RequirementsChemical Composition, Weight %MaterialDesignationIron Copper Carbon NickelMolyb-denumChro-miumMan-ganeseSilicon SulfurPhos-phorusNitro-genColum-biumOxygen Other
16、F-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 . . . . . . . . . . 2.0FY-4500 Min Bal. . 0.00 . . . . . .
17、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 0.3A. . . . . . . . . . 2.0FX-1005 Min Bal. 8.0 0
18、.3A. . . . . . . . . . .FX-1005 Max Bal. 14.9 0.6A. . . . . . . . . . 2.0FX-1008 Min Bal. 8.0 0.6A. . . . . . . . . . .FX-1008 Max Bal. 14.9 0.9A. . . . . . . . . . 2.0FX-2000 Min Bal. 15.0 0.0 . . . . . . . . . . .FX-2000 Max Bal. 25.0 0.3A. . . . . . . . . . 2.0FX-2005 Min Bal. 15.0 0.3A. . . . .
19、. . . . . .FX-2005 Max Bal. 25.0 0.6A. . . . . . . . . . 2.0FX-2008 Min Bal. 15.0 0.6A. . . . . . . . . . .FX-2008 Max Bal. 25.0 0.9A. . . . . . . . . . 2.0FC-0200 Min Bal. 1.5 0.0 . . . . . . . . . . .FC-0200 Max Bal. 3.9 0.3 . . . . . . . . . . 2.0FC-0205 Min Bal. 1.5 0.3 . . . . . . . . . . .FC-0
20、205 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 Bal. 6.0 0.6 . . . . . . . . . . 2.0FC-0508 Min Bal. 4.0 0.6 . . . . . . . . . . .FC-0508 Max Bal. 6.0 0
21、.9 . . . . . . . . . . 2.0FC-0808 Min Bal. 7.0 0.6 . . . . . . . . . . .FC-0808 Max Bal. 9.0 0.9 . . . . . . . . . . 2.0FC-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 . . . .
22、. . . . . 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 . . . . . . .
23、. . 2.0FN-0408 Min Bal. 0.0 0.6 3.0 . . . . . . . . . .FN-0408 Max Bal. 2.0 0.9 5.5 . . . . . . . . . 2.0FL-4205 Min Bal. . 0.4 0.35 0.50 . . . . . . . . .FL-4205 Max Bal. . 0.7 0.55 0.85 . . . . . . . . 2.0B783042TABLE 1 ContinuedChemical Composition, Weight %MaterialDesignationIron Copper Carbon N
24、ickelMolyb-denumChro-miumMan-ganeseSilicon SulfurPhos-phorusNitro-genColum-biumOxygen OtherFL-4605 Min Bal. . 0.4 1.70 0.40 . . . . . . . . .FL-4605 Max Bal. . 0.7 2.00 1.10 . . . . . . . . 2.0FL-4405 Min Bal. . 0.4 . 0.75 . . . . . . . . .FL-4405 Max Bal. . 0.7 . 0.95 . . . . . . . . 2.0FLN-4205 Mi
25、n Bal. . 0.4 1.35B0.49 . . . . . . . . .FLN-4205 Max Bal. . 0.7 2.50B0.85 . . . . . . . . 2.0FLN2-4405 Min Bal. . 0.4 1.00 0.65 . . . . . . . . .FLN2-4405 Max Bal. . 0.7 3.00 0.95 . . . . . . . . 2.0FLN4-4405 Min Bal. . 0.4 3.00 0.65 . . . . . . . . .FLN4-4405 Max Bal. . 0.7 5.00 0.95 . . . . . . .
26、. 2.0FLN6-4405 Min Bal. . 0.4 5.00 0.65 . . . . . . . . .FLN6-4405 Max Bal. . 0.7 7.00 0.95 . . . . . . . . 2.0FLNC-4405 Min Bal. 1.0 0.4 1.00 0.65 . . . . . . . . .FLNC-4405 Max Bal. 3.0 0.7 3.00 0.95 . . . . . . . . 2.0FLN2-4408 Min Bal. . 0.6 1.0 0.65 . . . . . . . . .FLN2-4408 Max Bal. . 0.9 3.0
27、 0.95 . . . . . . . . 2.0FLN4-4408 Min Bal. . 0.6 3.0 0.65 . . . . . . . . .FLN4-4408 Max Bal. . 0.9 5.0 0.95 . . . . . . . . 2.0FLN6-4408 Min Bal. . 0.6 5.0 0.65 . . . . . . . . .FLN6-4408 Max Bal. . 0.9 7.0 0.95 . . . . . . . . 2.0FLN-4608 Min Bal. . 0.6 3.6C0.39 . . . . . . . .FLN-4608 Max Bal. .
28、 0.9 5.0C1.10 . . . . . . . 2.0FLC-4608 Min Bal. 1.0 0.6 1.6 0.39 . . . . . . . . .FLC-4608 Max Bal. 3.0 0.9 2.0 1.10 . . . . . . . . 2.0FLC-4908 Min Bal. 1.0 0.6 . 1.30 . . . . . . . . .FLC-4908 Max Bal. 3.0 0.9 . 1.70 . . . . . . . . 2.0FLNC-4408 Min Bal. 1.0 0.6 1.0 0.65 . . . . . . . . .FLNC-440
29、8 Max Bal. 3.0 0.9 3.0 0.95 . . . . . . . . 2.0FD-0200 Min Bal. 1.3 0.0 1.55 0.4 . . . . . . . . .FD-0200 Max Bal. 1.7 0.3 1.95 0.6 . . . . . . . . 2.0FD-0205 Min Bal. 1.3 0.3 1.55 0.4 . . . . . . . . .FD-0205 Max Bal. 1.7 0.6 1.95 0.6 . . . . . . . . 2.0FD-0208 Min Bal. 1.3 0.6 1.55 0.4 . . . . . .
30、 . . .FD-0208 Max Bal. 1.7 0.9 1.95 0.6 . . . . . . . . 2.0FD-0405 Min Bal. 1.3 0.3 3.60 0.4 . . . . . . . . .FD-0405 Max Bal. 1.7 0.6 4.40 0.6 . . . . . . . . 2.0FD-0408 Min Bal. 1.3 0.6 3.60 0.4 . . . . . . . . .FD-0408 Max Bal. 1.7 0.9 4.40 0.6 . . . . . . . . 2.0SS-303N1,N2 Min Bal. . 0.00 8.0 .
31、 17.0 0.0 0.0 0.15 0.00 0.20 . . .SS-303N1,N2 Max Bal. . 0.15 13.0 . 19.0 2.0 1.0 0.30 0.20 0.60 . . 2.0SS-303L Min Bal. . 0.00 8.0 . 17.0 0.0 0.0 0.15 0.00 0.00 . . .SS-303L Max Bal. . 0.03 13.0 . 19.0 2.0 1.0 0.30 0.20 0.03 . . 2.0SS-304N1,N2 Min Bal. . 0.00 8.0 . 18.0 0.0 0.0 0.00 0.00 0.20 . . .
32、SS-304N1,N2 Max Bal. . 0.08 12.0 . 20.0 2.0 1.0 0.03 0.04 0.60 . . 2.0SS-304H,L Min Bal. . 0.00 8.0 . 18.0 0.0 0.0 0.00 0.00 0.00 . . .SS-304H,L Max Bal. . 0.03 12.0 . 20.0 2.0 1.0 0.03 0.04 0.03 . . 2.0SS-316N1,N2 Min Bal. . 0.00 10.0 2.0 16.0 0.0 0.0 0.00 0.00 0.20 . . .SS-316N1,N2 Max Bal. . 0.08
33、 14.0 3.0 18.0 2.0 1.0 0.03 0.04 0.60 . . 2.0B783043absorption and inert gas fusion methods (Test Methods E 1019)are used for the specific elements of carbon, nitrogen, oxygenand sulfur.6.4 The Chemical Composition Requirements Table (Table1) designates the limits of metallurgically combined carbon
34、foreach alloy. The combined carbon level can be estimatedmetallographically for sintered P/M steels. When a clearpearlite to ferrite ratio cannot be estimated metallographically,total carbon can be determined using analytical methods (TestMethods E 1019). This would include very low carbon levels(0.
35、08 %), heat treated steels and materials made from preal-loyed base powders or diffusion alloyed powders. Whenreporting carbon levels, the report should identify whether thecarbon is metallurgically combined carbon or total carbon andthe test method should be identified. While total carbon willappro
36、ximate the combined carbon in many materials, freegraphite and other carbonaceous material will raise the totalcarbon level above the level of combined carbon, possiblycausing the total carbon content to exceed the combined carbonlevel specified for the material.7. Physical Properties7.1 Density:7.1
37、.1 The user and producer may agree upon a minimumaverage density for the part or minimum densities for specificregions of the part, or both, except soft magnetic materials,which require a minimum average density as part of thematerial specification.7.1.2 Density shall be determined in accordance wit
38、h TestMethod B 328.7.2 Porosity:7.2.1 The producer and the user may also agree upon aminimum volume oil content for parts that are to be self-lubricating.7.2.2 Porosity or oil content, or both, shall be determined inaccordance with Test Method B 328.7.2.3 The producer and the user may agree upon a f
39、unc-tional test for porosity in parts that are to be self-lubricating, orfor permeability where fluid flow must be restricted.8. Mechanical Properties8.1 The guaranteed properties shown in Tables 2-11 areincluded in the suffix of the material designation code. Thecode is adopted from MPIF Standard 3
40、5. All tensile strengthsare read as 103psi, and are defined as the 0.2 % offset yieldstrength for as-sintered materials and the ultimate tensilestrength for heat-treated materials (sinter hardened or quenchedand tempered). Iron-phosphorus materials (Table 3) contain analphanumeric suffix and are an
41、exception to this rule. Theiron-phosphorus suffix is related to the minimum density andTABLE 1 ContinuedChemical Composition, Weight %MaterialDesignationIron Copper Carbon NickelMolyb-denumChro-miumMan-ganeseSilicon SulfurPhos-phorusNitro-genColum-biumOxygen OtherSS-316H,L Min Bal. . 0.00 10.0 2.0 1
42、6.0 0.0 0.0 0.00 0.00 0.00 . . .SS-316H,L Max Bal. . 0.03 14.0 3.0 18.0 2.0 1.0 0.03 0.04 0.03 . . 2.0SS-409L Min Bal. 0.00 . . 10.50 0.0 0.0 0.00 0.00 0.00 8 3%C. .SS-409L Max Bal. . 0.03 . . 11.75 1.0 1.0 0.03 0.04 0.03 0.80 . 2.0SS-409LEDMin Bal. . 0.00 0.0 . 11.50 0.0 0.0 0.00 0.00 0.00 8 3%C. .
43、SS-409LEDMax Bal. . 0.03 0.5 . 13.50 1.0 1.0 0.03 0.04 0.03 0.80 . 2.0SS-410 Min Bal. . 0.00 . . 11.50 0.0 0.0 0.00 0.00 0.20 . . .SS-410 Max Bal. . 0.25 . . 13.50 1.0 1.0 0.03 0.04 0.60 . . 2.0SS-410L Min Bal. . 0.00 . . 11.50 0.0 0.0 0.00 0.00 0.00 . . .SS-410L Max Bal. . 0.03 . . 13.50 1.0 1.0 0.
44、03 0.04 0.03 . . 2.0SS-430N2 Min Bal. . 0.00 . . 16.00 0.0 0.0 0.00 0.00 0.20 . . .SS-430N2 Max Bal. . 0.08 . . 18.00 1.0 1.0 0.03 0.04 0.60 . . 2.0SS-430L Min Bal. . 0.00 . . 16.00 0.0 0.0 0.00 0.00 0.00 . . .SS- 430L Max Bal. . 0.03 . . 18.00 1.0 1.0 0.03 0.04 0.03 . . 2.0SS-434N2 Min Bal. . 0.00
45、. 0.75 16.00 0.0 0.0 0.00 0.00 0.20 . . .SS-434N2 Max Bal. . 0.08 . 1.25 18.00 1.0 1.0 0.03 0.04 0.60 . . 2.0SS-434L Min Bal. . 0.00 . 0.75 16.00 0.0 0.0 0.00 0.00 0.00 . . .SS-434L Max Bal. . 0.03 . 1.25 18.00 1.0 1.0 0.03 0.04 0.03 . . 2.0ACarbon, on basis of iron only, may be a metallographic est
46、imate.BAt least 1 % of the nickel is admixed as elemental powder.CAt least 2 % of the nickel is admixed as elemental powder.DLE = L grade with extended chemical composition.NOTEFor the Stainless Steels: N1Nitrogen alloyed. Good strength, low elongation. N2Nitrogen alloyed. High strength, medium elon
47、gation.LLow carbon. Lower strength, highest elongation. HTMartensitic grade, heat treated. Highest strength.B783044maximum coercive field strength and not the tensile yieldstrength (see X1.3 and X1.4 for details).8.1.1 Materials that are heat treated (sinter-hardened orquenched and tempered) have th
48、e numeric value followed byHT in the suffix.8.2 The producer and the user should agree upon the methodto be used to verify the minimum strength characteristics of thefinished parts. Since it is usually impossible to machine tensiletest specimens from these parts, alternative strength tests areadvisa
49、ble. An example would be measuring the force needed tobreak 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 molded from the same mixed powderlot, at the density of a critical region in the part, and processedalong with the parts. When a P/M part has a larger rulingsection than the test bar being used, the test bar may not berepresentative of the part. The following procedures are listedwith the preferred method first.8.3.1 Transverse rupture strength (see Test Method B 528)can be relate
