ASTM A266/A266M-11

Standard Specification for Carbon Steel Forgings for Pressure Vessel Components

STANDARD published on 1.10.2011

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The information about the standard:

Designation standards: ASTM A266/A266M-11
Note: WITHDRAWN
Publication date standards: 1.10.2011
SKU: NS-1811
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM A266/A266M-11 :

Keywords:

pressure vessel service, steel forgingscarbon: Boiler/superheater tubes--specifications, Carbon steel forgings--specifications, Pressure vessel steel forgings--specifications, Superheater tubes--specifications, ICS Number Code 77.140.30 (Steels for pressure purposes), 77.140.85 (Iron and steel forgings)

Additional information

1. Scope

1.1 This specification 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

1.2 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 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.

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

2. Referenced Documents

E112-25	Standard Test Methods for Determining Average Grain Size
A1058-19	Standard Test Methods for Mechanical Testing of Steel Products´Metric
A788/A788M-26a	Standard Specification for Steel Forgings, General Requirements (Includes all amendments and changes 8/6/2026).
A370-26	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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