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ASTM A 266/A266M : 2020

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Standard Specification for Carbon Steel Forgings for Pressure Vessel Components

Available format(s)

Hardcopy , PDF

Superseded date

10-05-2024

Superseded by

ASTM A 266/A266M : 2021

Language(s)

English

Published date

06-11-2020

$122.77
Including GST where applicable

Committee
A 01
DocumentType
Standard
Pages
5
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

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.

ASTM A 105/A105M : 2021 Standard Specification for Carbon Steel Forgings for Piping Applications
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 370 : 2011 Standard Test Methods and Definitions for Mechanical Testing of Steel Products

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