ASTM A266/A266M-21

Standard Specification for Carbon Steel Forgings for Pressure Vessel Components

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STANDARD published on 1.5.2021

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The information about the standard:

Designation standards: ASTM A266/A266M-21
Publication date standards: 1.5.2021
SKU: NS-1025315
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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The category - similar standards:

Steels for pressure purposes Iron and steel forgings

Annotation of standard text ASTM A266/A266M-21 :

This specification covers four grades of carbon steel forgings for boiler and pressure vessel components, and associated equipment. Materials shall be manufactured by melting process and hot-worked forging. Heat and product analyses shall be performed wherein forgings shall conform to chemical requirements for carbon, manganese, phosphorus, sulphur, and silicon. Mechanical properties such as tensile strength, yield strength, elongation, and reduction of area shall be inspected as well. The requirements for annealed, normalized, or normalized and tempered steel forgings, and that for quenched and tempered steel forgings have been specified separately.

Keywords:
pressure vessel service, steel forgings—carbon,, ICS Number Code 77.140.30 (Steels for pressure purposes),77.140.85 (Iron and steel forgings)

Additional information

1. Scope

1.1?This specificationNote 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

1.2?Supplementary 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.

1.3?The 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.

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

1.5?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.

2. Referenced Documents

E112-13(2021)	Standard Test Methods for Determining Average Grain Size
A1058-19	Standard Test Methods for Mechanical Testing of Steel Products´Metric
A788/A788M-23	Standard Specification for Steel Forgings, General Requirements
A370-23	Standard Test Methods and Definitions for Mechanical Testing of Steel Products
E381-22	Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
ASME Boiler and Pressure Vessel Code, Section IX Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://www.asme.org.
E165/E165M-23	Standard Practice for Liquid Penetrant Testing for General Industry
A275/A275M-23	Standard Practice for Magnetic Particle Examination of Steel Forgings

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