ASTM B783-19
(Specification)Standard Specification for Materials for Ferrous Powder Metallurgy (PM) Structural Parts
Standard Specification for Materials for Ferrous Powder Metallurgy (PM) Structural Parts
ABSTRACT
This specification covers a variety of ferrous powder metallurgy structural materials and includes a classification system or material designation code. The classification system includes chemical composition, minimum offset yield strength for as-sintered materials, minimum ultimate tensile strength for heat-treated materials (sinter hardened or quenched and tempered), minimum density, and maximum coercive field strength requirements for iron-phosphorus materials. Structural parts shall be made by pressing and sintering metal powders with or without subsequent heat treatment. Parts may also be made by repressing or repressing and resintering sintered parts, if necessary, with or without subsequent heat treatment to produce finished parts conforming to the requirements of this specification. The material shall conform to the chemical composition requirements for iron, copper, carbon, nickel, molybdenum, chromium, manganese, silicon, sulfur, phosphorus, nitrogen, columbium, and oxygen. The material shall be subjected to chemical analysis and mechanical tests.
SCOPE
1.1 This specification covers a variety of ferrous PM structural materials and includes a classification system or material designation code. The classification system used in this specification includes chemical composition, minimum tensile; 0.2 % offset yield strength for as-sintered materials; and minimum ultimate tensile strength for heat-treated materials (sinter hardened or quenched and tempered). It also contains minimum density and maximum coercive field strength requirements for iron-phosphorus materials.
1.2 Material classification is governed by the designation code which is explained in Appendix X1. The data provided display typical mechanical properties achieved under commercial manufacturing procedures. Physical and mechanical property performance 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-pound units are the standard. Values in SI units result from conversion. They may be approximate and are only for information.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B783 −19
Standard Specification for
Materials for Ferrous Powder Metallurgy (PM) Structural
1
Parts
This standard is issued under the fixed designation B783; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2
1.1 This specification covers a variety of ferrous PM struc- 2.1 ASTM Standards:
tural materials and includes a classification system or material
A839Specification for Iron-Phosphorus Powder Metallurgy
designation code. The classification system used in this speci- Parts for Soft Magnetic Applications
fication includes chemical composition, minimum tensile; B243Terminology of Powder Metallurgy
0.2% offset yield strength for as-sintered materials; and
B528Test Method for Transverse Rupture Strength of Pow-
minimum ultimate tensile strength for heat-treated materials
der Metallurgy (PM) Specimens
(sinter hardened or quenched and tempered). It also contains B962Test Methods for Density of Compacted or Sintered
minimum density and maximum coercive field strength re-
Powder Metallurgy (PM) Products Using Archimedes’
quirements for iron-phosphorus materials.
Principle
B963 Test Methods for Oil Content, Oil-Impregnation
1.2 Material classification is governed by the designation
Efficiency, and Surface-Connected Porosity of Sintered
code which is explained in Appendix X1. The data provided
Powder Metallurgy (PM) Products Using Archimedes’
display typical mechanical properties achieved under commer-
Principle
cial manufacturing procedures. Physical and mechanical prop-
E8Test Methods for Tension Testing of Metallic Materials
erty performance characteristics can change as a result of
[Metric] E0008_E0008M
subsequentprocessingstepsbeyondthestepsdesignatedinthis
E29Practice for Using Significant Digits in Test Data to
standard.
Determine Conformance with Specifications
1.3 With the exception of density values for which the
E1019Test Methods for Determination of Carbon, Sulfur,
3
g/cm unit is the industry standard, property values stated in
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
inch-poundunitsarethestandard.ValuesinSIunitsresultfrom
Alloys by Various Combustion and Inert Gas Fusion
conversion. They may be approximate and are only for
Techniques
information.
3
2.2 MPIF Standard:
1.4 This standard does not purport to address all of the
MPIFStandard35-SPMaterialsStandardsforPMStructural
safety concerns, if any, associated with its use. It is the
Parts
responsibility of the user of this standard to establish appro-
MPIF Standard 10Method for Determination of the Tensile
priate safety, health, and environmental practices and deter-
Properties of Powder Metallurgy (PM) Materials
mine the applicability of regulatory limitations prior to use.
MPIF Standard 66Method for Sample Preparation for the
Determination of the Total Carbon Content of Powder
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard- Metallurgy (PM) Materials (Excluding Cemented Car-
bides)
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom- MPIF Standard 67Guide to Sample Preparation for the
mendations issued by the World Trade Organization Technical Chemical Analysis of the Metallic Elements in Powder
Barriers to Trade (TBT) Committee. Metallurgy (PM) Materials
1 2
This specification is under the jurisdiction ofASTM Committee B09 on Metal For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Powders and Metal Powder Products and is the direct responsibility of Subcom- contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
mittee B09.05 on Structural Parts. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2019. Published October 2019. Originally the ASTM website.
3
approved in 1988. Last previous edition approved in 2013 as B783–13. DOI: Available from Metal Powder Industries Federation (MPIF), 105 College Rd.
10.1520/B0783-19. East, Princeton, NJ 08540, http://www.mpif.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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B783−19
3. Terminology 7. Physical Properties
3.1 Definitions—Definitions of powder metallurgy terms 7.1 Density
...
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 version. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
Designation: B783 − 13 B783 − 19
Standard Specification for
Materials for Ferrous Powder Metallurgy (PM) Structural
1
Parts
This standard is issued under the fixed designation B783; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope Scope*
1.1 This specification covers a variety of ferrous PM structural materials and includes a classification system or material
designation code. The classification system used in this specification includes chemical composition, minimum tensile; 0.2 % offset
yield strength for as-sintered materialsmaterials; and minimum ultimate tensile strength for heat-treated materials (sinter hardened
or quenched and tempered). It also contains minimum density and maximum coercive field strength requirements for
iron-phosphorus materials.
1.2 Material classification is governed by the designation code which is explained in Appendix X1. The data provided display
typical mechanical properties achieved under commercial manufacturing procedures. Physical and mechanical property
performance characteristics can change as a result of subsequent processing steps beyond the steps designated in this standard.
3
1.3 With the exception of density values for which the g/cm unit is the industry standard, property values stated in inch-pound
units are the standard. Values in SI units result from conversion. They may be approximate and are only for information.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
A839 Specification for Iron-Phosphorus Powder Metallurgy Parts for Soft Magnetic Applications
B243 Terminology of Powder Metallurgy
B528 Test Method for Transverse Rupture Strength of Powder Metallurgy (PM) Specimens
B962 Test Methods for Density of Compacted or Sintered Powder Metallurgy (PM) Products Using Archimedes’ Principle
B963 Test Methods for Oil Content, Oil-Impregnation Efficiency, and Surface-Connected Porosity of Sintered Powder
Metallurgy (PM) Products Using Archimedes’ Principle
E8 Test Methods for Tension Testing of Metallic Materials [Metric] E0008_E0008M
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E1019 Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by
Various Combustion and Inert Gas Fusion Techniques
3
2.2 MPIF Standard:
MPIF Standard 35Standard 35-SP Materials Standards for PM Structural Parts
MPIF Standard 10 Method for Determination of the Tensile Properties of Powder Metallurgy (PM) Materials
MPIF Standard 66 Method for Sample Preparation for the Determination of the Total Carbon Content of Powder Metallurgy
(PM) Materials (Excluding Cemented Carbides)
1
This specification is under the jurisdiction of ASTM Committee B09 on Metal Powders and Metal Powder Products and is the direct responsibility of Subcommittee
B09.05 on Structural Parts.
Current edition approved Nov. 1, 2013Oct. 1, 2019. Published November 2013October 2019. Originally approved in 1988. Last previous edition approved in 20102013
as B783B783 – 13.– 10. DOI: 10.1520/B0783-13.10.1520/B0783-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from MPIF, Metal Powder Industries Federation (MPIF), 105 College RoadRd. East, Princeton, NJ 08540.08540, http://www.mpif.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 -------------------
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