Standard Specification for Carbon Steel Forgings for Pressure Vessel Components

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

05-25-2021

Publisher

American Society for Testing and Materials

1.1This specification2 covers four grades of carbon steel forgings for boilers, pressure vessels, and associated equipment.

Note 1:Designations have been changed as follows:

Current	Formerly
Grade 1	Class 1
Grade 2	Class 2
Grade 3	Class 3
Grade 4	Class 4

1.2Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.

1.3The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.

1.4Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.

1.5This 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.

Committee	A 01
DocumentType	Standard
Pages	5
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM A 266/A266M : 2020

ASTM A 788/A788M : 2019 : REV A	Standard Specification for Steel Forgings, General Requirements
ASTM A 181/A181M : 2014 : R2020	Standard Specification for Carbon Steel Forgings, for General-Purpose Piping
ASTM A 105/A105M : 2021	Standard Specification for Carbon Steel Forgings for Piping Applications

ASTM A 370 : 2021	Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A 1058 : 2019	Standard Test Methods for Mechanical Testing of Steel Products—Metric
ASTM A 788/A788M : 2022	Standard Specification for Steel Forgings, General Requirements
ASTM A 788/A788M : 2023	Standard Specification for Steel Forgings, General Requirements
ASTM E 165/E165M : 2023	Standard Practice for Liquid Penetrant Testing for General Industry
ASTM A 275/A275M : 2018	Standard Practice for Magnetic Particle Examination of Steel Forgings
ASTM A 275/A275M : 2023	Standard Practice for Magnetic Particle Examination of Steel Forgings
ASTM A 370 : 2020	Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A 370 : 2023	Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM E 381 : 2022	Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
ASTM A 370 : 2022	Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A 275/A275M : 2018 : R2023	Standard Practice for Magnetic Particle Examination of Steel Forgings
ASTM A 788/A788M : 2022 : REV A	Standard Specification for Steel Forgings, General Requirements
ASTM E 112 : 2013 : R2021	Standard Test Methods for Determining Average Grain Size
ASTM E 112 : 2013	Standard Test Methods for Determining Average Grain Size
ASTM E 381 : 2020	Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
ASTM E 165/E165M : 2018	Standard Practice for Liquid Penetrant Testing for General Industry
ASTM A 370 : 2024	Standard Test Methods and Definitions for Mechanical Testing of Steel Products