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ASTM F3554-22

(Specification)

Standard Specification for Additive Manufacturing – Finished Part Properties – Grade 4340 (UNS G43400) via Laser Beam Powder Bed Fusion for Transportation Applications

Standard Specification for Additive Manufacturing – Finished Part Properties – Grade 4340 (UNS G43400) via Laser Beam Powder Bed Fusion for Transportation Applications

SCOPE
1.1 This specification covers additive manufacturing of parts manufactured via laser beam powder bed fusion (PBF-LB) processing of Grade 4340 (UNS G43400) used in transportation applications, including automotive applications. Parts made using this processing method require heat treatment to achieve maximum strength and are typically used in applications that require mechanical properties similar to wrought Grade 4340 (UNS G43400) products. Products built to this specification may require additional post-processing in the form of machining, polishing etc. to meet necessary surface finish and dimensional tolerances.  
1.2 This specification describes the required facility, training, equipment, and processing requirements necessary to support the production of parts with properties and associated quality metrics outlined in a part classification structure.  
1.3 This specification is intended for the use of purchasers or producers, or both, of PBF-LB Grade 4340 (UNS G43400) parts for defining the requirements based on classification methodology. These requirements shall be agreed upon by the part supplier and purchaser.  
1.4 Users are advised to use this specification as a basis for obtaining parts that will meet the minimum acceptance requirements established and revised by consensus of committee members.  
1.5 User requirements considered more stringent may be met by additional requirements in the purchase order.  
1.6 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.7 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.

General Information

Status
Published
Publication Date
30-Sep-2022
ICS
25.030 - Additive manufacturing
Technical Committee
F42 - Additive Manufacturing Technologies
Drafting Committee
F42.07 - Applications
Current Stage
Ref Project

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ASTM F3554-22 - Standard Specification for Additive Manufacturing – Finished Part Properties – Grade 4340 (UNS G43400) via Laser Beam Powder Bed Fusion for Transportation ApplicationsASTM F3554-22 - Standard Specification for Additive Manufacturing – Finished Part Properties – Grade 4340 (UNS G43400) via Laser Beam Powder Bed Fusion for Transportation Applications
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ASTM F3554-22 - Standard Specification for Additive Manufacturing – Finished Part Properties – Grade 4340 (UNS G43400) via Laser Beam Powder Bed Fusion for Transportation Applications
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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:F3554 −22
Standard Specification for
Additive Manufacturing – Finished Part Properties – Grade
4340 (UNS G43400) via Laser Beam Powder Bed Fusion for
1
Transportation Applications
This standard is issued under the fixed designation F3554; 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 Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This specification covers additive manufacturing of
Barriers to Trade (TBT) Committee.
parts manufactured via laser beam powder bed fusion (PBF-
LB) processing of Grade 4340 (UNS G43400) used in trans-
2. Referenced Documents
portationapplications,includingautomotiveapplications.Parts
2
2.1 ASTM Standards:
made using this processing method require heat treatment to
B822 Test Method for Particle Size Distribution of Metal
achieve maximum strength and are typically used in applica-
Powders and Related Compounds by Light Scattering
tions that require mechanical properties similar to wrought
D3951 Practice for Commercial Packaging
Grade 4340 (UNS G43400) products. Products built to this
E3 Guide for Preparation of Metallographic Specimens
specification may require additional post-processing in the
E8/E8M Test Methods for Tension Testing of Metallic Ma-
form of machining, polishing etc. to meet necessary surface
terials
finish and dimensional tolerances.
E10 Test Method for Brinell Hardness of Metallic Materials
1.2 This specification describes the required facility,
E29 Practice for Using Significant Digits in Test Data to
training, equipment, and processing requirements necessary to
Determine Conformance with Specifications
support the production of parts with properties and associated
E407 Practice for Microetching Metals and Alloys
quality metrics outlined in a part classification structure.
E112 Test Methods for Determining Average Grain Size
E1019 Test Methods for Determination of Carbon, Sulfur,
1.3 This specification is intended for the use of purchasers
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt
or producers, or both, of PBF-LB Grade 4340 (UNS G43400)
parts for defining the requirements based on classification Alloys by Various Combustion and Inert Gas Fusion
Techniques
methodology. These requirements shall be agreed upon by the
part supplier and purchaser. E1245 Practice for Determining the Inclusion or Second-
Phase Constituent Content of Metals byAutomatic Image
1.4 Users are advised to use this specification as a basis for
Analysis
obtainingpartsthatwillmeettheminimumacceptancerequire-
E1417 Practice for Liquid Penetrant Testing
ments established and revised by consensus of committee
E1479 Practice for Describing and Specifying Inductively
members.
Coupled Plasma Atomic Emission Spectrometers
1.5 User requirements considered more stringent may be
E1742 Practice for Radiographic Examination
met by additional requirements in the purchase order.
E2234 Practice for Sampling a Stream of Product by Attri-
butes Indexed by AQL
1.6 The values stated in SI units are to be regarded as
E2594 Test Method forAnalysis of NickelAlloys by Induc-
standard. The values given in parentheses after SI units are
tively Coupled Plasma Atomic Emission Spectrometry
provided for information only and are not considered standard.
(Performance-Based)
1.7 This international standard was developed in accor-
E2762 Practice for Sampling a Stream of Product by Vari-
dance with internationally recognized principles on standard-
ables Indexed by AQL
ization established in the Decision on Principles for the
F2971 Practice for Reporting Data for Test Specimens Pre-
pared by Additive Manufacturing
1
This specification is under the jurisdiction of ASTM Committee F42 on
2
Additive Manufacturing Technologies and is the direct responsibility of Subcom- For referenced ASTM standards, visit the ASTM website, www.astm.org, or
mittee F42.07 on Applications. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Oct. 1, 2022. Published November 2022. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/F3554-22. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F3554−22
7
F3122 Guide for Evaluating Mechanical Properties of Metal 2.7 ANSI/A
...

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1.7.3 Data items or an exchange format for PSD methods other than light scattering, for example, imaging or sieving.  
1.7.4 Data elements for data modules related to PSD (for example, for personnel, material, or equipment).  
1.7.5 The implementation details of how data should be imported to proprietary data management systems from the common data exchange format.  
1.7.6 The implementation details of how data should be exported from proprietary data management systems to the common data exchange format.  
1.7.7 Guidelines for creating unique identifiers for data module records  
1.8 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.9 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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Standard Guide for Additive Manufacturing – Feedstock – Particle Shape Image Analysis by Optical Photography to Identify and Quantify the Agglomerates/Satellites in Metal Powder Feedstock

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5.1 Particle characterization, especially particle size distribution, has been an important parameter for quality control (QC) and research and development (R&D) in a very wide variety of industries and markets, anywhere a particulate system is a final product or an intermediate constituent somewhere in the process. But size alone is not a sufficient morphological measurement to use to understand many factors of the complete particle morphology of particulate systems and their effects on other properties. This information is expected to contribute to the understanding of the effects of shape on powder spreadability and flowability in the creation of the bed in powder bed fusion AM and the density and porosity of the final AM parts (definitions in ISO/ASTM 52900 and Terminology B243). Ultimately, specifications can be developed for quality control (QC) tolerances for these shape parameters that can be measured with a straightforward, fast automated analysis
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1.1 This guide explains how to characterize the quality of metal powder feedstock to additive manufacturing (AM) relative to the powder shape using automated static or dynamic image analysis by optical photography. This guide will describe the method(s) to measure powder shape parameters that can identify potentially detrimental powder characteristics and specifically describe how to identify and quantify the proportion of agglomerates/satellites and other irregularly shaped non-spherical powder particles in a powder batch.  
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1.1 This practice is intended to be used to assign part classifications across the aviation industries that use AM to produce parts.  
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1.6 The classification scheme in this practice establishes a consistent methodology to define and communicate the consequence of failure associated with AM aviation parts.  
1.7 This practice is not intended to supersede the requirements and definitions of the applicable regulations or policies, including but not limited to the ones listed in Annex A1.  
1.8 Tables A1.1-A1.3 align the existing regulations and guidance with the four part classes established herein. However, this alignment should not be construed as an alignment of the existing regulations to each other.  
1.9 The material or process, or both, in general does not affect the consequence of failure of a part, therefore the classification scheme defined in this document may be used outside AM.  
1.10 The user of this standard should not assume regulators’ endorsement of this standard as accepted mean of compliance.  
1.11 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.  
1.12 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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