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API Std 20S Additively Manufactured Metallic Components for Use in the Petroleum and Natural Gas Industries, First Edition
standard by American Petroleum Institute, 10/01/2021
This standard specifies requirements for qualification of the manufacturing process, production, marking, and documentation of additively manufactured metallic components used in the petroleum and natural gas industries when referenced by an applicable API equipment standard or otherwise specified as a requirement for conformance.
This standard applies to additively manufactured metallic components produced by powder bed fusion (PBF), directed energy deposition (DED), and binder jetting (BJT) processes.
This standard establishes requirements for three additive manufacturing specification levels (AMSL). These three AMSL designations - AMSL 1, AMSL 2, and AMSL 3 - define increasing levels of additive manufacturing technical, quality, and qualification requirements.
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API STANDARD 20S
FIRST EDITION, OCTOBER 2021
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Page
Scope 1
Purpose 1
Applicability 1
Additive Manufacturing Specification Levels (AMSL) 1
Normative References 2
Terms, Definitions, Acronyms, and Abbreviations 4
Terms and Definitions 4
Acronyms and Abbreviations 6
Requirements for the Additive Manufacturing Process 7
General 7
Additive Manufacturer Requirements 7
Feedstock Requirements 9
Substrate Requirements 12
Additive Manufacturing Printing Equipment 12
First Article 13
Post-build Processing—First Article 17
Quality Control Requirements—Powder Bed Fusion (LB and EB)—First Article 18
Quality Control Requirements—Directed Energy Deposition (Wire and Blown Metal Powder)—First Article 18
Quality Control Requirements—Binder Jetting—First Article 20
Limits on the Qualification of the Additive Manufacturing Process 21
Essential Variables 21
Essential Additive Manufacturing Variables to be Reported 22
Essential Additive Manufacturing Variables Not Reported 22
Components Production Control 24
General 24
Manufacturing Process Specification 24
Pre-build Check 24
Batch Control and Powder Reuse 25
Process Interruptions 25
Post-build Processing 25
Marking and Identification of Production Components 26
Production Component Quality Control Requirements 27
General 27
Control of Non-conforming Components 27
Material Testing 29
Chemical Analysis 29
Tensile Testing 30
Impact Testing 30
Hardness Testing 30
Microstructure Analysis 30
Density Testing 30
Production Component Non-destructive Examination Requirement 30
Documentation 33
Page
General 33
Minimum Documentation and Retention 34
Documentation Provided with the Component(s) 34
Handling, Storage, and Shipping 35
Annex A (informative) Non-essential Additive Manufacturing Variables Guidance 36
Annex B (informative) Supplemental Documentation Requirements 37
Annex C (informative) Supplemental Material Test Guidance for Hard Metal Components Manufactured with Binder Jetting 38
Bibliography 39
Qualification Process Flowchart 2
Non-conformances Notification Flowchart 29
Quality Control Requirements—Powder Bed Fusion (LB and EB)—First Article 18
Quality Control Requirements—Directed Energy Deposition (Wire and Blown Metal Powder)—First Article 19
Quality Control Requirements—Binder Jetting First Article 21
PBF and DED Essential Additive Manufacturing Variables to be Reported (as applicable) 22
BJT Essential Additive Manufacturing Variables to be Reported (as applicable) 22
PBF and DED Essential Additive Manufacturing Variables Not Reported (as applicable) 23
BJT Essential Additive Manufacturing Variables Not Reported 23
Sampling 27
Quality Control Requirements—Powder Bed Fusion (LB and EB)—Production Components 31
Quality Control Requirements—Directed Energy Deposition (Wire and Blown Metal Powder)— Production Components 32
Quality Control Requirements—Binder Jetting—Production Components 33
Additively Manufactured Metallic Components for Use in the Petroleum and Natural Gas Industries
This standard specifies requirements for qualification of the manufacturing process, production, marking, and documentation of additively manufactured metallic components used in the petroleum and natural gas industries when referenced by an applicable API equipment standard or otherwise specified as a requirement for conformance. The qualification process flowchart is shown in Figure 1.
This standard applies to additively manufactured metallic components produced by powder bed fusion (PBF), directed energy deposition (DED), and binder jetting (BJT) processes.
This standard establishes requirements for three additive manufacturing specification levels (AMSL). These three AMSL designations—AMSL 1, AMSL 2, and AMSL 3—define increasing levels of additive manufacturing technical, quality, and qualification requirements.
NOTE An AMSL can be assigned to a component by a product specification or standard, the purchaser, or the
manufacturer.