ASTM A508/A508M-95(1999)

Standard Specification for Quenched and Tempered Vacuum-Treated Carbon and Alloy Steel Forgings for Pressure Vessels

STANDARD published on 10.9.1999

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The information about the standard:

Designation standards: ASTM A508/A508M-95(1999)
Note: WITHDRAWN
Publication date standards: 10.9.1999
SKU: NS-2888
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM A508/A508M-95(1999) :

Keywords:

Vacuum treated steels, forgings-carbon/alloy steel, quenched and tempered/vacuum-treated (for, pressure vessels), spec, ICS Number Code 77.140.30 (Steels for pressure purposes)

Additional information

1. Scope

1.1 This specification covers quenched and tempered vacuum treated carbon and alloy steel forgings for pressure vessels such as those used in reactor systems. Specifically, it covers forgings for vessel closures, shells, flanges, tube sheets, rings, heads, and similar parts.

1.2 All grades are considered weldable under proper conditions. Welding technique is of fundamental importance, and it is presupposed that welding procedure and inspection will be in accordance with approved methods for the grade of material used.

1.3 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standards. Within the text and the tables, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other. Combining values from the two systems may result in nonconformance with the specification.

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

Note 1-Grades 1 and 1A are composed of different chemistries but have the same mechanical requirements. Note 2-Designations have been changed as follows: Current Grade 1 Grade 1A Grade 2 Class 1 Grade 2 Class 2 Grade 3 Class 1 Grade 3 Class 2 Grade 4N Class 1 Grade 4N Class 2 Grade 4N Class 3 Grade 5 Class 1 Grade 5 Class 2 Grade 22 Class 3 Grade 3V Formerly Class 1 Class 1A Class 2 Class 2A Class 3 Class 3A Class 4 Class 4A Class 4B Class 5 Class 5A Class 22B Class 3V

2. Referenced Documents

A388/A388M-26	Standard Practice for Ultrasonic Examination of Steel Forgings
Boiler and Pressure Vessel Code—Section III, Articles NB2300,	NC 2300, ND 2300, NE 2300, NF 2300, NG 2300 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://www.asme.org.
A788/A788M-25a	Standard Specification for Steel Forgings, General Requirements (Includes all amendments and changes 5/12/2025).
A966/A966M-15(2025)	Standard Practice for Magnetic Particle Examination of Steel Forgings Using Alternating Current
A275/A275M-23	Standard Practice for Magnetic Particle Examination of Steel Forgings
A370-24a	Standard Test Methods and Definitions for Mechanical Testing of Steel Products (Includes all amendments and changes 10/29/2024).
E428-08	Standard Practice for Fabrication and Control of Metal, Other than Aluminum, Reference Blocks Used in Ultrasonic Testing
E208-20e1	Standard Test Method for Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic Steels (Includes all amendments and changes 2/9/2023).

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