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This specification covers austenitic stainless steel forgings for pressure and high temperature parts such as boilers, pressure vessels, and associated equipment. The grades covered here are F304, F304H, F304L, F304N, F304LN, F309H, F310, F310H, F316, F316H, F316L, F316N, F316LN, F321, F321H, F347, F347H, F348, F348H, FXM-19, FXM-11, and F46. Materials shall be produced by melting, forging, and rough machining, and shall be furnished by heat treatment in solution treated condition (solution annealing and quenching in water, oil, or a polymer water solution). Stainless steel specimens shall undergo heat and product analyses to evaluate the conformance of individual grades to specified elemental chemical compositions. Forgings shall also be examined for the adherence of each grade to required grain sizes and mechanical properties, which include tensile strength, yield strength, elongation, and reduction of area.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers austenitic stainless steel forgings for boilers, pressure vessels, high temperature parts, and associated equipment.
1.2 Supplementary requirements are provided for use when additional testing, inspection, or processing is required. In addition, supplementary requirements from Specification A788/A788M may be specified when appropriate.
1.3 This specification includes the austenitic steel forgings that were a part of Specification A336/A336M.
1.4 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.
1.5 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A336/A336M Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A745/A745M Practice for Ultrasonic Examination of Austenitic Steel Forgings
A788/A788M Specification for Steel Forgings, General Requirements
A1058 Test Methods for Mechanical Testing of Steel Products--Metric
E112 Test Methods for Determining Average Grain Size
Other StandardsASME Boiler and Pressure Vessel Code, including Section VIII Pressure Vessels and 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.
ICS Number Code 77.140.20 (Steels of high quality)
UNSPSC Code 31132600(Stainless steel forgings)
ASTM A965 / A965M-14, Standard Specification for Steel Forgings, Austenitic, for Pressure and High Temperature Parts, ASTM International, West Conshohocken, PA, 2014, www.astm.orgBack to Top