ASTM F3055-14e1

Standard Specification for Additive Manufacturing Nickel Alloy (UNS N07718) with Powder Bed Fusion

SCOPE
1.1 This specification covers additively manufactured UNS N07718 components using full-melt powder bed fusion such as electron beam melting and laser melting. The components produced by these processes are used typically in applications that require mechanical properties similar to machined forgings and wrought products. Components manufactured to this specification are often, but not necessarily, post processed via machining, grinding, electrical discharge machining (EDM), polishing, and so forth to achieve desired surface finish and critical dimensions.  
1.2 This specification is intended for the use of purchasers or producers, or both, of additively manufactured UNS N07718 components for defining the requirements and ensuring component properties.  
1.3 Users are advised to use this specification as a basis for obtaining components that will meet the minimum acceptance requirements established and revised by consensus of the members of the committee.  
1.4 User requirements considered more stringent may be met by the addition to the purchase order of one or more supplementary requirements, which may include, but are not limited to, those listed in Supplementary Requirements S1–S16.  
1.5 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.  
1.6 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Jan-2014
• ICS: 77.150.40 - Nickel and chromium products
• Technical Committee: F42 - Additive Manufacturing Technologies
• Drafting Committee: F42.05 - Materials and Processes

Relations

• Replaces: ASTM F3055-14 - Standard Specification for Additive Manufacturing Nickel Alloy (UNS N07718) with Powder Bed Fusion
• Effective Date: 01-Feb-2014
• Referred By: ASTM F3592-23 - Standard Guide for Additive Manufacturing of Metals – Powder Bed Fusion – Guidelines for Feedstock Re-use and Sampling Strategies
• Effective Date: 01-Feb-2014

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
´1
Designation:F3055 −14
StandardSpecification for
Additive Manufacturing Nickel Alloy (UNS N07718) with
Powder Bed Fusion
This standard is issued under the fixed designation F3055; 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.
ε NOTE—In Tables 1 and 2, Columbium was changed to Niobium editorially in November 2014.
1. Scope 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification covers additively manufactured UNS
B213 Test Methods for Flow Rate of Metal Powders Using
N07718componentsusingfull-meltpowderbedfusionsuchas
the Hall Flowmeter Funnel
electron beam melting and laser melting. The components
B214 Test Method for Sieve Analysis of Metal Powders
produced by these processes are used typically in applications
B243 Terminology of Powder Metallurgy
thatrequiremechanicalpropertiessimilartomachinedforgings
B311 Test Method for Density of Powder Metallurgy (PM)
and wrought products. Components manufactured to this
Materials Containing Less Than Two Percent Porosity
specification are often, but not necessarily, post processed via
B769 Test Method for Shear Testing of Aluminum Alloys
machining, grinding, electrical discharge machining (EDM),
B880 Specification for General Requirements for Chemical
polishing, and so forth to achieve desired surface finish and
Check Analysis Limits for Nickel, Nickel Alloys and
critical dimensions.
Cobalt Alloys
1.2 This specification is intended for the use of purchasers
B964 Test Methods for Flow Rate of Metal Powders Using
orproducers,orboth,ofadditivelymanufacturedUNSN07718
the Carney Funnel
components for defining the requirements and ensuring com-
D3951 Practice for Commercial Packaging
ponent properties.
E3 Guide for Preparation of Metallographic Specimens
1.3 Users are advised to use this specification as a basis for E8/E8M Test Methods for Tension Testing of Metallic Ma-
obtaining components that will meet the minimum acceptance terials
requirements established and revised by consensus of the E9 Test Methods of Compression Testing of Metallic Mate-
members of the committee. rials at Room Temperature
E10 Test Method for Brinell Hardness of Metallic Materials
1.4 User requirements considered more stringent may be
E11 Specification for Woven Wire Test Sieve Cloth and Test
met by the addition to the purchase order of one or more
Sieves
supplementary requirements, which may include, but are not
E18 Test Methods for Rockwell Hardness of Metallic Ma-
limited to, those listed in Supplementary Requirements
terials
S1–S16.
E21 TestMethodsforElevatedTemperatureTensionTestsof
1.5 Units—The values stated in SI units are to be regarded Metallic Materials
as the standard. No other units of measurement are included in
E23 Test Methods for Notched Bar Impact Testing of Me-
this standard. tallic Materials
E29 Practice for Using Significant Digits in Test Data to
1.6 This standard does not purport to address all of the
Determine Conformance with Specifications
safety concerns, if any, associated with its use. It is the
E238 Test Method for Pin-Type Bearing Test of Metallic
responsibility of the user of this standard to establish appro-
Materials
priate safety and health practices and determine the applica-
E354 Test Methods for Chemical Analysis of High-
bility of regulatory limitations prior to use.
Temperature,Electrical,Magnetic,andOtherSimilarIron,
Nickel, and Cobalt Alloys
ThistestmethodisunderthejurisdictionofASTMCommitteeF42onAdditive
Manufacturing Technologies and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
F42.05 on Materials and Processes. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Current edition approved Feb. 1, 2014. Published March 2014. DOI: 10.1520/ Standards volume information, refer to the standard’s Document Summary page on
F3055-14. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
F3055−14
E384 Test Method for Knoop and Vickers Hardness of ISO 6892-2 Metallic materials—Tensile testing—Part 2:
Materials Method of test at elevated temperature
E399 Test Method for Linear-Elastic Plane-Strain Fracture ISO 9001 Quality management system—Requirements
Toughness K of Metallic Materials ISO 9044 Industrial woven wire cloth—Technical require-
Ic
E407 Practice for Microetching Metals and Alloys ments and testing
E466 Practice for Conducting Force Controlled Constant ISO 12108 Metallic materials—Fatigue testing—Fatigue
Amplitude Axial Fatigue Tests of Metallic Materials crack growth method
E606 Test Method for Strain-Controlled Fatigue Testing ISO 12111 Metallic materials—Fatigue testing—Strain-
E647 Test Method for Measurement of Fatigue Crack controlled thermomechanical fatigue testing method
Growth Rates ISO 12135 Metallic materials—Unified method of test for
E1019 Test Methods for Determination of Carbon, Sulfur, the determination of quasistatic fracture toughness
Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt ISO 12737 Metallic materials—Determination of plane-
Alloys by Various Combustion and Fusion Techniques strain fracture toughness (withdrawn)
E1417 Practice for Liquid Penetrant Testing ISO 13485 Medical devices—Quality management
E1450 Test Method for Tension Testing of StructuralAlloys systems—Requirements for regulatory purposes
in Liquid Helium ISO 19819 Metallic materials—Tensile testing in liquid
E1473 Test Methods for Chemical Analysis of Nickel, helium
Cobalt, and High-Temperature Alloys
2.5 SAE Standards:
E1820 Test Method for Measurement of Fracture Toughness
AMS 2774 Heat Treatment Wrought Nickel Alloy and Co-
E1941 Test Method for Determination of Carbon in Refrac-
balt Alloy Parts
toryandReactiveMetalsandTheirAlloysbyCombustion
AMS 2269 Chemical Check Analysis Limits Nickel, Nickel
Analysis
Alloys, and Cobalt Alloys
E2368 Practice for Strain Controlled Thermomechanical
AMS 5596 Nickel Alloy, Corrosion and Heat Resistant,
Fatigue Testing
Sheet, Strip, Foil, and Plate 52.5Ni 19Cr 3.0Mo 5.1Cb
F629 Practice for Radiography of Cast Metallic Surgical
0.90Ti 0.50Al 18Fe
Implants
AS 9100 Quality Systems—Aerospace—Model for Quality
F2792 Terminology for Additive Manufacturing
Assurance in Design, Development, Production, Installa-
,
Technologies
tion and Servicing
F2924 Specification for Additive Manufacturing Titanium-6
2.6 ASME Standard:
Aluminum-4 Vanadium with Powder Bed Fusion
ASME B46.1 Surface Texture
2 7
2.2 ISO/ASTM Standards:
2.7 NIST Standard:
52915 Specification forAdditive Manufacturing File Format
IR 7847 (March 2012) CODEN:NTNOEF
(AMF) Version 1.1
3. Terminology
52921 Terminology for Additive Manufacturing—
Coordinate Systems and Test Methodologies
3.1 Definitions:
2.3 ASQ Standard: 3.1.1 Terminology relating to powder bed fusion in Speci-
ASQ C1 Specification of General Requirements for a Qual- fication F2924 shall apply.
ity Program 3.1.2 Terminology relating to additive manufacturing in
Terminology F2792 shall apply.
2.4 ISO Standards:
3.1.3 Terminology relating to coordinate systems in ISO/
ISO 148-1 Metallic materials—Charpy pendulum impact
ASTM 52921 shall apply.
test—Part 1: Test method
3.1.4 Terminology relating to powder metallurgy in Termi-
ISO 1099 Metallic materials—Fatigue testing—Axial force-
nology B243 shall apply.
controlled method
ISO 4545 Metallic materials—Knoop hardness test—Part 2:
4. Classification
Verification and calibration of testing machines
ISO 6506-1 Metallic materials—Brinell hardness test—Part 4.1 Unless otherwise specified herein, all classifications
shall meet the requirements in each section of this standard.
1: Test method
ISO 6507-1 Metallic materials—Vickers hardness test—Part 4.1.1 Class A components shall be stress relieved per
Section 12.
1: Test method
ISO 6508 Metallic materials—Rockwell hardness test—Part 4.1.2 Class B components shall be stress relieved per
Section 12 and hot isostatically pressed per Section 13.
1: Test method (scales A, B, C, D, E, F, G, H, K, N, T)
ISO 6892-1 Metallic materials—Tensile testing at ambient
temperature
Available from SAE International (SAE), 400 Commonwealth Dr.,Warrendale,
PA 15096-0001, http://www.sae.org.
Available from American Society of Mechanical Engineers (ASME), ASME
Available from American Society for Quality (ASQ), 600 N. Plankinton Ave., International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
Milwaukee, WI 53203, http://www.asq.org. www.asme.org.
4 7
Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St., Available from National Institute of Standards and Technology (NIST), 100
4th Floor, New York, NY 10036, http://www.ansi.org. Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
´1
F3055−14
4.1.3 Class C components shall be stress relieved per 6.1.3 The machine identification, including machine soft-
Section 12, hot isostatically pressed per Section 13, and ware version, manufacturing control system version (if
solution treated per Section 12. automated), build chamber environment, machine
4.1.4 Class D components shall be stress relieved per conditioning, and calibration information of the qualified
Section 12, hot isostatically pressed per Section 13, solution machine;
treated and aged per Section 12. 6.1.4 Predetermined process as substantiated by the quali-
4.1.5 Class E components shall be stress relieved and fication procedure;
solution treated per Section 12. 6.1.5 Safeguards to ensure traceability of the digital files,
4.1.6 Class F components shall be stress relieved, solution including design history of the components;
treated and aged per Section 12. 6.1.6 All the steps necessary to start the build process,
4.1.7 For Class G components, all thermal post processing including build platform selection, machine cleaning, and
shall be optional. powder handling;
6.1.7 The requirements for approving machine operators;
5. Ordering Information 6.1.8 Logging of machine build data files, upper and lower
limits of the parameters affecting component quality and other
5.1 Orders for components compliant with this specification
process validation controls;
shall include the following to describe the requirements ad-
6.1.9 The number of components per build cycle, their
equately:
orientation and location on the build platform, and support
5.1.1 This specification designation,
structures, if required;
5.1.2 Description or part number of product desired,
6.1.10 Process steps including, but not limited to, Section 8;
5.1.3 Quantity of product desired,
6.1.11 Post-processingprocedure,includingsequenceofthe
5.1.4 Classification,
post-processing steps and the specifications for each step;
5.1.5 SI or SAE units,
6.1.12 Thermal processing including stress relieve, furnace
5.1.5.1 Discussion—The STL file format used by many
anneal, hot isostatic pressing, heat treat, and aging; and
powder bed fusion machines does not contain units of mea-
6.1.13 Inspection requirements as agreed between the pur-
surementasmetadata.WhenonlySTLfilesareprovidedbythe
chaser and component supplier, including any supplementary
purchaser, ordering information should specify the units of the
requirements.
component along with the electronic data file. More informa-
tion about data files can be found in ISO/ASTM 52915.
7. Feedstock
5.1.6 Dimensions and tolerances (Section 14),
7.1 The feedstock for this specification shall be metal
5.1.7 Mechanical properties (Section 11),
powder, as defined in Terminology B243, that has the powder
5.1.8 Methods for chemical analysis (Section 9),
type, size distribution, shape, tap density, and flow rate
5.1.9 Sampling methods (Section S14),
acceptable for the process as determined by the component
5.1.10 Post-processing sequence of operations,
supplier.
5.1.11 Thermal processing,
7.2 The metal powder shall be free from detrimental
5.1.12 Allowable porosity (Section S8),
amounts of inclusions and impurities and its chemical compo-
5.1.13 Component marking such as labeling the serial or lot
sition shall be adequate to yield, after processing, the final
number in the CAD file prior to the build cycle, or product
material chemistry listed in Table 1.
tagging,
5.1.14 Packaging, 7.3 Powder blends are allowed unless otherwise specified
5.1.15 Certification, between the component supplier and component purchaser, as
long as all powder used to create the powder blend meets the
5.1.16 Disposition of rejected material (Section 15), and
requirements in Table 1 and lot numbers are documented and
5.1.17 Other supplementary requirements.
maintained.
6. Manufacturing Plan
TABLE 1 Composition (wt %)
6.1 ClassA, B, C, D, E, and F components manufactured to
Element min max
thisspecificationshallhaveamanufacturingplanthatincludes,
Carbon – 0.08
but is not limited to, the following:
Manganese – 0.35
6.1.1 A machine, manufacturing control system, and quali- Silicon – 0.35
Phosphorus – 0.015
fication procedure as agreed between component supplier and
Sulfur – 0.015
purchaser;
Chromium 17.0 21.0
Cobalt – 1.0
NOTE 1—Qualification procedures typically require qualification build
Molybdenum 2.80 3.30
cycles in which mechanical property test specimens are prepared and
Niobium + tantalum 4.75 5.50
measured in accordance with Section 11 or other applicable standards.
Titanium 0.65 1.15
Location, orientation on the build platform, number of test specimens for Aluminum 0.20 0.8
each machine qualification build cycle, and relationship between speci- Iron remainder
Copper – 0.1
men test results and component quality shall be agreed upon between
Nickel 50.00 55.00
component supplier and purchaser.
Boron – 0.006
6.1.2 Feedstock that meets the requirements of Section 7;
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F3055−14
7.4 Used powder is allowed. The proportion of virgin 8.4 Post-processing operations may be used to achieve the
powder to used powder shall be recorded and reported for each desired shape, size, surface finish, or other component proper-
production run. The maximum number of times used powder ties. The post-processing operations shall be agreed upon
can be used as well as the number of times any portion of a between the component supplier and purchaser for Class A
powder lot can be processed in the build chamber should be through F components.
agreed upon between component supplier and purchaser for
Classes A, through F. There are no limits on the number of 9. Chemical Composition
build cycles for
...

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.
´1
Designation: F3055 − 14 F3055 − 14
Standard Specification for
Additive Manufacturing Nickel Alloy (UNS N07718) with
Powder Bed Fusion
This standard is issued under the fixed designation F3055; 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.
ε NOTE—In Tables 1 and 2, Columbium was changed to Niobium editorially in November 2014.
1. Scope
1.1 This specification covers additively manufactured UNS N07718 components using full-melt powder bed fusion such as
electron beam melting and laser melting. The components produced by these processes are used typically in applications that
require mechanical properties similar to machined forgings and wrought products. Components manufactured to this specification
are often, but not necessarily, post processed via machining, grinding, electrical discharge machining (EDM), polishing, and so
forth to achieve desired surface finish and critical dimensions.
1.2 This specification is intended for the use of purchasers or producers, or both, of additively manufactured UNS N07718
components for defining the requirements and ensuring component properties.
1.3 Users are advised to use this specification as a basis for obtaining components that will meet the minimum acceptance
requirements established and revised by consensus of the members of the committee.
1.4 User requirements considered more stringent may be met by the addition to the purchase order of one or more
supplementary requirements, which may include, but are not limited to, those listed in Supplementary Requirements S1–S16.
1.5 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this
standard.
1.6 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2.1 ASTM Standards:
B213 Test Methods for Flow Rate of Metal Powders Using the Hall Flowmeter Funnel
B214 Test Method for Sieve Analysis of Metal Powders
B243 Terminology of Powder Metallurgy
B311 Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity
B769 Test Method for Shear Testing of Aluminum Alloys
B880 Specification for General Requirements for Chemical Check Analysis Limits for Nickel, Nickel Alloys and Cobalt Alloys
B964 Test Methods for Flow Rate of Metal Powders Using the Carney Funnel
D3951 Practice for Commercial Packaging
E3 Guide for Preparation of Metallographic Specimens
E8/E8M Test Methods for Tension Testing of Metallic Materials
E9 Test Methods of Compression Testing of Metallic Materials at Room Temperature
E10 Test Method for Brinell Hardness of Metallic Materials
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E18 Test Methods for Rockwell Hardness of Metallic Materials
This test method is under the jurisdiction of ASTM Committee F42 on Additive Manufacturing Technologies and is the direct responsibility of Subcommittee F42.05
on Materials and Processes.
Current edition approved Feb. 1, 2014. Published March 2014. DOI: 10.1520/F3055-14.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
F3055 − 14
E21 Test Methods for Elevated Temperature Tension Tests of Metallic Materials
E23 Test Methods for Notched Bar Impact Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E238 Test Method for Pin-Type Bearing Test of Metallic Materials
E354 Test Methods for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and
Cobalt Alloys
E384 Test Method for Knoop and Vickers Hardness of Materials
E399 Test Method for Linear-Elastic Plane-Strain Fracture Toughness K of Metallic Materials
Ic
E407 Practice for Microetching Metals and Alloys
E466 Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials
E606 Test Method for Strain-Controlled Fatigue Testing
E647 Test Method for Measurement of Fatigue Crack Growth Rates
E1019 Test Methods for Determination of Carbon, Sulfur, Nitrogen, and Oxygen in Steel, Iron, Nickel, and Cobalt Alloys by
Various Combustion and Fusion Techniques
E1417 Practice for Liquid Penetrant Testing
E1450 Test Method for Tension Testing of Structural Alloys in Liquid Helium
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt, and High-Temperature Alloys
E1820 Test Method for Measurement of Fracture Toughness
E1941 Test Method for Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis
E2368 Practice for Strain Controlled Thermomechanical Fatigue Testing
F629 Practice for Radiography of Cast Metallic Surgical Implants
,
F2792 Terminology for Additive Manufacturing Technologies
F2924 Specification for Additive Manufacturing Titanium-6 Aluminum-4 Vanadium with Powder Bed Fusion
2.2 ISO/ASTM Standards:
52915 Specification for Additive Manufacturing File Format (AMF) Version 1.1
52921 Terminology for Additive Manufacturing—Coordinate Systems and Test Methodologies
2.3 ASQ Standard:
ASQ C1 Specification of General Requirements for a Quality Program
2.4 ISO Standards:
ISO 148-1 Metallic materials—Charpy pendulum impact test—Part 1: Test method
ISO 1099 Metallic materials—Fatigue testing—Axial force-controlled method
ISO 4545 Metallic materials—Knoop hardness test—Part 2: Verification and calibration of testing machines
ISO 6506-1 Metallic materials—Brinell hardness test—Part 1: Test method
ISO 6507-1 Metallic materials—Vickers hardness test—Part 1: Test method
ISO 6508 Metallic materials—Rockwell hardness test—Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T)
ISO 6892-1 Metallic materials—Tensile testing at ambient temperature
ISO 6892-2 Metallic materials—Tensile testing—Part 2: Method of test at elevated temperature
ISO 9001 Quality management system—Requirements
ISO 9044 Industrial woven wire cloth—Technical requirements and testing
ISO 12108 Metallic materials—Fatigue testing—Fatigue crack growth method
ISO 12111 Metallic materials—Fatigue testing—Strain-controlled thermomechanical fatigue testing method
ISO 12135 Metallic materials—Unified method of test for the determination of quasistatic fracture toughness
ISO 12737 Metallic materials—Determination of plane-strain fracture toughness (withdrawn)
ISO 13485 Medical devices—Quality management systems—Requirements for regulatory purposes
ISO 19819 Metallic materials—Tensile testing in liquid helium
2.5 SAE Standards:
AMS 2774 Heat Treatment Wrought Nickel Alloy and Cobalt Alloy Parts
AMS 2269 Chemical Check Analysis Limits Nickel, Nickel Alloys, and Cobalt Alloys
AMS 5596 Nickel Alloy, Corrosion and Heat Resistant, Sheet, Strip, Foil, and Plate 52.5Ni 19Cr 3.0Mo 5.1Cb 0.90Ti 0.50Al
18Fe
AS 9100 Quality Systems—Aerospace—Model for Quality Assurance in Design, Development, Production, Installation and
Servicing
Available from American Society for Quality (ASQ), 600 N. Plankinton Ave., Milwaukee, WI 53203, http://www.asq.org.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
´1
F3055 − 14
2.6 ASME Standard:
ASME B46.1 Surface Texture
2.7 NIST Standard:
IR 7847 (March 2012) CODEN:NTNOEF
3. Terminology
3.1 Definitions:
3.1.1 Terminology relating to powder bed fusion in Specification F2924 shall apply.
3.1.2 Terminology relating to additive manufacturing in Terminology F2792 shall apply.
3.1.3 Terminology relating to coordinate systems in ISO/ASTM 52921 shall apply.
3.1.4 Terminology relating to powder metallurgy in Terminology B243 shall apply.
4. Classification
4.1 Unless otherwise specified herein, all classifications shall meet the requirements in each section of this standard.
4.1.1 Class A components shall be stress relieved per Section 12.
4.1.2 Class B components shall be stress relieved per Section 12 and hot isostatically pressed per Section 13.
4.1.3 Class C components shall be stress relieved per Section 12, hot isostatically pressed per Section 13, and solution treated
per Section 12.
4.1.4 Class D components shall be stress relieved per Section 12, hot isostatically pressed per Section 13, solution treated and
aged per Section 12.
4.1.5 Class E components shall be stress relieved and solution treated per Section 12.
4.1.6 Class F components shall be stress relieved, solution treated and aged per Section 12.
4.1.7 For Class G components, all thermal post processing shall be optional.
5. Ordering Information
5.1 Orders for components compliant with this specification shall include the following to describe the requirements adequately:
5.1.1 This specification designation,
5.1.2 Description or part number of product desired,
5.1.3 Quantity of product desired,
5.1.4 Classification,
5.1.5 SI or SAE units,
5.1.5.1 Discussion—The STL file format used by many powder bed fusion machines does not contain units of measurement as
metadata. When only STL files are provided by the purchaser, ordering information should specify the units of the component
along with the electronic data file. More information about data files can be found in ISO/ASTM 52915.
5.1.6 Dimensions and tolerances (Section 14),
5.1.7 Mechanical properties (Section 11),
5.1.8 Methods for chemical analysis (Section 9),
5.1.9 Sampling methods (Section S14),
5.1.10 Post-processing sequence of operations,
5.1.11 Thermal processing,
5.1.12 Allowable porosity (Section S8),
5.1.13 Component marking such as labeling the serial or lot number in the CAD file prior to the build cycle, or product tagging,
5.1.14 Packaging,
5.1.15 Certification,
5.1.16 Disposition of rejected material (Section 15), and
5.1.17 Other supplementary requirements.
6. Manufacturing Plan
6.1 Class A, B, C, D, E, and F components manufactured to this specification shall have a manufacturing plan that includes,
but is not limited to, the following:
6.1.1 A machine, manufacturing control system, and qualification procedure as agreed between component supplier and
purchaser;
NOTE 1—Qualification procedures typically require qualification build cycles in which mechanical property test specimens are prepared and measured
in accordance with Section 11 or other applicable standards. Location, orientation on the build platform, number of test specimens for each machine
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
www.asme.org.
Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
´1
F3055 − 14
qualification build cycle, and relationship between specimen test results and component quality shall be agreed upon between component supplier and
purchaser.
6.1.2 Feedstock that meets the requirements of Section 7;
6.1.3 The machine identification, including machine software version, manufacturing control system version (if automated),
build chamber environment, machine conditioning, and calibration information of the qualified machine;
6.1.4 Predetermined process as substantiated by the qualification procedure;
6.1.5 Safeguards to ensure traceability of the digital files, including design history of the components;
6.1.6 All the steps necessary to start the build process, including build platform selection, machine cleaning, and powder
handling;
6.1.7 The requirements for approving machine operators;
6.1.8 Logging of machine build data files, upper and lower limits of the parameters affecting component quality and other
process validation controls;
6.1.9 The number of components per build cycle, their orientation and location on the build platform, and support structures,
if required;
6.1.10 Process steps including, but not limited to, Section 8;
6.1.11 Post-processing procedure, including sequence of the post-processing steps and the specifications for each step;
6.1.12 Thermal processing including stress relieve, furnace anneal, hot isostatic pressing, heat treat, and aging; and
6.1.13 Inspection requirements as agreed between the purchaser and component supplier, including any supplementary
requirements.
7. Feedstock
7.1 The feedstock for this specification shall be metal powder, as defined in Terminology B243, that has the powder type, size
distribution, shape, tap density, and flow rate acceptable for the process as determined by the component supplier.
7.2 The metal powder shall be free from detrimental amounts of inclusions and impurities and its chemical composition shall
be adequate to yield, after processing, the final material chemistry listed in Table 1.
7.3 Powder blends are allowed unless otherwise specified between the component supplier and component purchaser, as long
as all powder used to create the powder blend meets the requirements in Table 1 and lot numbers are documented and maintained.
7.4 Used powder is allowed. The proportion of virgin powder to used powder shall be recorded and reported for each production
run. The maximum number of times used powder can be used as well as the number of times any portion of a powder lot can be
processed in the build chamber should be agreed upon between component supplier and purchaser for Classes A, through F. There
are no limits on the number of build cycles for used powder for Class G components. After a build cycle, any remaining used
powder may be blended with virgin powder to maintain a powder quantity large enough for next build cycle. The chemical
composition of used powders shall be analyzed regularly, as
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