ASTM F3607-22

Standard Specification for Additive Manufacturing – Finished Part Properties – Maraging Steel via Powder Bed Fusion

SCOPE
1.1 This specification covers additive manufacturing of parts via full-melt laser beam powder bed fusion (PBF-LB) processing of maraging steel alloys. Parts made using this processing method are typically used in applications that require mechanical properties similar to wrought products, either as fabricated or heat treated. Products built to this specification may require additional post-processing in the form of machining, polishing, etc., to meet necessary surface finish and dimensional requirements.  
1.2 Maraging steel (MS) is a class of precipitation hardened steel, where aging heat treatment is used to form precipitates and, consequently, achieve significantly increased hardness and strength. This specification focuses specifically on 300 grade maraging steel, which corresponds to UNS K93120 and EN1.2709. MS grade 300 has higher concentrations of cobalt and titanium than lower grades.  
1.3 This specification is intended for the use of purchasers or producers, or both, of additively manufactured maraging steel parts for defining the requirements and ensuring part properties.  
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 the addition to the purchase order of one or more supplementary requirements, which include, but are not limited to, those listed in Supplementary Requirements in Sections S1 to S3.  
1.6 The values stated in SI units are to be regarded as standard. All units of measure included in this guide are accepted for use with the SI.  
1.7 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.  
1.8 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-Nov-2022
• Technical Committee: F42 - Additive Manufacturing Technologies
• Drafting Committee: F42.05 - Materials and Processes

Relations

• Refers: ASTM B213-20 - Standard Test Methods for Flow Rate of Metal Powders Using the Hall Flowmeter Funnel
• Effective Date: 01-Apr-2020
• Refers: ASTM A579/A579M-20 - Standard Specification for Superstrength Alloy Steel Forgings
• Effective Date: 01-Mar-2020

Standards Content (Sample)

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: F3607 − 22
Standard Specification for
Additive Manufacturing – Finished Part Properties –
1
Maraging Steel via Powder Bed Fusion
This standard is issued under the fixed designation F3607; 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 responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
1.1 This specification covers additive manufacturing of
mine the applicability of regulatory limitations prior to use.
parts via full-melt laser beam powder bed fusion (PBF-LB)
1.8 This international standard was developed in accor-
processing of maraging steel alloys. Parts made using this
dance with internationally recognized principles on standard-
processing method are typically used in applications that
ization established in the Decision on Principles for the
require mechanical properties similar to wrought products,
Development of International Standards, Guides and Recom-
either as fabricated or heat treated. Products built to this
mendations issued by the World Trade Organization Technical
specification may require additional post-processing in the
Barriers to Trade (TBT) Committee.
form of machining, polishing, etc., to meet necessary surface
finish and dimensional requirements.
2. Referenced Documents
1.2 Maraging steel (MS) is a class of precipitation hardened
2
2.1 ASTM Standards:
steel, where aging heat treatment is used to form precipitates
A262 Practices for Detecting Susceptibility to Intergranular
and, consequently, achieve significantly increased hardness and
Attack in Austenitic Stainless Steels
strength. This specification focuses specifically on 300 grade
A579/A579M Specification for Superstrength Alloy Steel
maraging steel, which corresponds to UNS K93120 and
Forgings
EN1.2709. MS grade 300 has higher concentrations of cobalt
A1080/A1080M Practice for Hot Isostatic Pressing of Steel,
and titanium than lower grades.
Stainless Steel, and Related Alloy Castings
1.3 This specification is intended for the use of purchasers
B213 Test Methods for Flow Rate of Metal Powders Using
or producers, or both, of additively manufactured maraging
the Hall Flowmeter Funnel
steel parts for defining the requirements and ensuring part
B311 Test Method for Density of Powder Metallurgy (PM)
properties.
Materials Containing Less Than Two Percent Porosity
B769 Test Method for Shear Testing of Aluminum Alloys
1.4 Users are advised to use this specification as a basis for
obtaining parts that will meet the minimum acceptance require- B855 Test Method for Volumetric Flow Rate of Metal
Powders Using the Arnold Meter and Hall Flowmeter
ments established and revised by consensus of committee
members. Funnel
B964 Test Methods for Flow Rate of Metal Powders Using
1.5 User requirements considered more stringent may be
the Carney Funnel
met by the addition to the purchase order of one or more
D3951 Practice for Commercial Packaging
supplementary requirements, which include, but are not limited
E3 Guide for Preparation of Metallographic Specimens
to, those listed in Supplementary Requirements in Sections S1
E8/E8M Test Methods for Tension Testing of Metallic Ma-
to S3.
terials
1.6 The values stated in SI units are to be regarded as
E9 Test Methods of Compression Testing of Metallic Mate-
standard. All units of measure included in this guide are
rials at Room Temperature
accepted for use with the SI.
E10 Test Method for Brinell Hardness of Metallic Materials
E18 Test Methods for Rockwell Hardness of Metallic Ma-
1.7 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the terials
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 F42.05 on Materials and Processes. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Current edition approved Dec. 1, 2022. Published September 2023. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/F3607-22. the ASTM website.
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F3607 − 22
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