ASTM A965/A965M-00
(Specification)Standard Specification for Steel Forgings, Austenitic, for Pressure and High Temperature Parts
Standard Specification for Steel Forgings, Austenitic, for Pressure and High Temperature Parts
SCOPE
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 A 788 may be specified when appropriate.
1.3 This specification includes the austenitic steel forgings that were a part of A 336/A 336M.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text and 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.
1.5 Unless the order specifies the applicable "M" specification designation, the material shall be furnished to the inch-pound units.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 965/A 965M – 00 An American National Standard
Standard Specification for
Steel Forgings, Austenitic, for Pressure and High
Temperature Parts
This standard is issued under the fixed designation A 965/A 965M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Ordering Information and General Requirements
1.1 This specification covers austenitic stainless steel forg- 3.1 In addition to the ordering information required by
ings for boilers, pressure vessels, high temperature parts, and Specification A 788, the intended use should be stated if 5.1 is
associated equipment. to be applicable.
1.2 Supplementary requirements are provided for use when 3.2 Material supplied to this specification shall conform to
additional testing, inspection, or processing is required. In the requirements of Specification A 788, which outlines addi-
addition, supplementary requirements from Specification tional ordering information, manufacturing requirements, test-
A 788 may be specified when appropriate. ing and retesting methods and procedures, marking, certifica-
1.3 This specification includes the austenitic steel forgings tion, product analysis variations, and additional supplementary
that were a part of A 336/A 336M. requirements.
1.4 The values stated in either inch-pound units or SI 3.3 If the requirements of this specification are in conflict
(metric) units are to be regarded separately as standards. with the requirements of Specification A 788, the requirements
Within the text and tables, the SI units are shown in brackets. of this specification shall prevail.
The values stated in each system are not exact equivalents; 3.4 If the forgings are intended for use under the ASME
therefore, each system must be used independent of the other. Boiler and Pressure Vessel rules at temperatures exceeding
Combining values from the two systems may result in noncon- 1000°F [540°C], then use Supplementary Requirement S7.
formance with the specification. Grain size requirements for service exceeding 1000°F [540°C]
1.5 Unless the order specifies the applicable “M” specifica- should be specified unless the required grade has the suffix
tion designation, the material shall be furnished to the inch- “H.”
pound units.
4. Melting and Forging
2. Referenced Documents
4.1 In addition to the melting and forging requirements of
2.1 ASTM Standards: Specification A 788, which may include Supplementary Re-
A 336/A 336M Specification for Alloy Steel Forgings for quirement S8, the following condition applies:
Pressure and High-Temperature Parts 4.1.1 A sufficient discard shall be made to secure freedom
A 370 Test Methods and Definitions for Mechanical Testing from injurious pipe and undue segregation.
of Steel Products
NOTE 1—Because of difficulties in retaining nitrogen, vacuum melting
A 788 Specification for Steel Forgings, General Require-
or remelting processes should not be specified for Grades F304N,
ments
F304LN, F316N, F316LN, and FXM-11.
E 112 Test Methods for Determining the Average Grain
5. Machining
Size
2.2 Other Standards:
5.1 Forged pressure vessels for steam power service shall
ASME Boiler and Pressure Vessel Code, including Section
have the inner surface machined or ground. Unfired pressure
VIII Pressure Vessels and Section IX Welding Qualifica-
vessels shall have the inner surfaces sufficiently free of scale to
tions
permit inspection.
5.2 When rough machining is performed, it may be done
1 either before or after heat treatment.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
6. Heat Treatment
A01.06 on Steel Forgings and Billets.
Current edition approved Sept. 10, 2000. Published October 2000. Originally
6.1 Forgings shall be furnished in the solution treated
published as A 965/A 965M-96. Last previous edition A 965/A 965M-99.
condition. On completion of forging operations, the forgings
Annual Book of ASTM Standards, Vol 01.05.
Annual Book of ASTM Standards, Vol 01.03.
shall be solution annealed and quenched in water, oil, or a
Annual Book of ASTM Standards, Vol 03.01.
polymer water solution. Direct quenching after completion of
Available from American Society of Mechanical Engineers, 345 E. 47th Street,
forging without subsequent reheating to the temperatures
New York, NY 10017.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
A 965/A 965M
prescribed in 6.2-6.5 is not permissible. heat in the same heat treatment load.
6.2 For Grades F304H, F309H, F310H, F316H, F321H, 8.2.2 When heat treatment is performed in continuous type
F347H, and F 348H, the minimum solution annealing tempera- furnaces equipped with recording pyrometers, such that com-
ture shall be 1925°F [1050°C]. plete heating records are available, a solution annealing charge
6.3 Grades FXM-11 and FXM-19 shall be solution annealed may be considered as any continuous run not exceeding an 8 h
at 1950°F [1065°C]. period.
6.4 Grade F46 shall be solution annealed in the temperature 8.2.3 For forgings weighing over 5000 lb [2250 kg], as heat
range of 2010–2140°F [1100–1170°C]. treated, one tension test shall be taken from a prolongation on
6.5 The remaining grades in Table 1 shall be solution each forging.
annealed at a minimum temperature of 1900°F [1040°C]. 8.3 The longitudinal axis of the tension test specimen shall
be parallel to the direction of major working of the forging,
7. Chemical Composition
except when Supplementary Requirement S2 is specified. For
7.1 Heat Analysis—The heat analysis obtained from sam-
upset disk forgings the longitudinal axis of the specimen shall
pling in accordance with Specification A 788 shall comply with
be in either the tangential or radial direction.
Table 1.
8.3.1 The location of the longitudinal axis of the tension test
7.2 Product Analysis—The manufacturer shall use the prod-
specimen shall be located midway between the parallel sur-
uct analysis provision of Specification A 788 to obtain a
faces of the test extension, if added to the periphery of disks,
product analysis from a forging representing each heat or
or midway between the center and surface of solid forgings.
multiple heat.
For hollow forgings, or those heat treated after boring, the
7.3 UNS designations follow:
specimen shall be located at midwall. For the special case of
forgings that are heat treated solid, but are subsequently bored,
Grade UNS Designation
the tension test specimen may be taken at the location of the
F304 S30400 minimum inside diameter after boring instead of the mid-radius
F304H S30409
position.
F304L S30403
F304N S30451
9. Grain Size
F304LN S30453
F309H S30909
9.1 For Grades F304H, F316H, F309H, F310H, F321H,
F310 S31000
F347H, and F348H, the grain size of the forgings shall be
F310H S31009
F316 S31600
ascertained according to Test Methods E 112, after solution
F316H S31609
treatment. One sample shall be examined for each tensile
F316L S31603
F316N S31651 specimen required in 8.2 and shall be taken from the tension
F316LN S31653
test location. The grain size shall be number 6, or coarser, over
F321 S32100
at least 75 % of the surveyed area.
F321H S32109
F347 S34700
F347H S34709
10. Repair Welding
F348 S34800
10.1 Repair welding of forgings may be permitted but only
F348H S34809
FXM-19 S20910
at the option of the purchaser. Such repair welds shall be made
FXM-11 S21904
in accordance with Section IX of the ASME Boiler and
F46 S30600
Pressure Vessel Code.
8. Mechanical Properties
11. Marking
8.1 Requirements—The material shall conform to the re-
11.1 The marking requirements of Specification A 788 ap-
quirements for mechanical properties prescribed in Table 2 and
ply.
Supplemental Requirement S2. The largest obtainable tension
test specimen as specified in Test Methods and Definitions
12. Test Reports
A 370 shall be used.
12.1 The certification requirements of Specification A 788
8.2 Number of Tests—The number and location of tests are
shall apply.
based on the heat-treated weight of the forging(s) from the
same heat, solution annealed in the same furnace charge.
13. Keywords
8.2.1 For forgings weighing less t
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