ASTM A765/A765M-01

Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements

SCOPE
1.1 This specification covers heat-treated carbon steel and alloy steel forgings with mandatory toughness requirements. These forgings are intended for pressure vessels, feedwater heaters, and similar uses.
1.2 These forgings include tube sheets, covers, channel barrels, integral forged channels, rings, nozzles, flanges, and similar parts.
1.3 All grades are considered weldable under proper conditions.
1.4 The maximum thickness of forgings produced to this specification is limited only by the capacity of the selected grade to respond to any heat treatment specified and to meet the specified mechanical tests, including impact tests at the specified temperature.
1.5 Material supplied to this specification shall conform to the requirements of Specification A 788, which outlines additional ordering information, manufacturing requirements, testing and retesting methods and procedures, marking, certification, product analysis variations, and additional supplementary requirements.
1.6 If the requirements of this specification are in conflict with the requirements of Specification A 788, the requirements of this specification shall prevail.
1.7 The values stated in either inch-pound units or SI [metric] units are to be regarded separately as the 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 independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.8 Unless the order specifies the applicable "M" specification designation, the material shall be furnished to the inch-pound units.

General Information

• Status: Historical
• Publication Date: 09-Oct-2001
• ICS: 77.140.30 - Steels for pressure purposes
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.06 - Steel Forgings and Billets

Relations

• Replaces: ASTM A765/A765M-98a - Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements
• Effective Date: 10-Oct-2001
• Replaced By: ASTM A765/A765M-04 - Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements
• Effective Date: 01-Jul-2004
• Referred By: ASTM A788/A788M-23 - Standard Specification for Steel Forgings, General Requirements
• Effective Date: 10-Oct-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 765/A 765M – 01
Standard Specification for
Carbon Steel and Low-Alloy Steel Pressure-Vessel-
Component Forgings with Mandatory Toughness
1
Requirements
This standard is issued under the fixed designation A 765/A 765M; 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 2. Referenced Documents
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1.1 This specification covers heat-treated carbon steel and 2.1 ASTM Standards:
alloy steel forgings with mandatory toughness requirements. A 275/A 275M Test Method for Magnetic Particle Exami-
3
These forgings are intended for pressure vessels, feedwater nation of Steel Forgings
heaters, and similar uses. A 370 Test Methods and Definitions for Mechanical Testing
4
1.2 These forgings include tube sheets, covers, channel of Steel Products
barrels, integral forged channels, rings, nozzles, flanges, and A 388/A 388M Practice for Ultrasonic Examination of
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similar parts. Heavy Steel Forgings
1.3 All grades are considered weldable under proper condi- A 788 Specification for Steel Forgings, General Require-
3
tions. ments
1.4 The maximum thickness of forgings produced to this E 112 Test Methods for Determining the Average Grain
5
specification is limited only by the capacity of the selected Size
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grade to respond to any heat treatment specified and to meet the E 165 Test Method for Liquid Penetrant Examination
specified mechanical tests, including impact tests at the speci- 2.2 ASME Standards:
7
fied temperature. Boiler and Pressure Vessel Code
1.5 Material supplied to this specification shall conform to
3. Ordering Information
the requirements of Specification A 788, which outlines addi-
tional ordering information, manufacturing requirements, test- 3.1 In addition to the ordering information requirements of
Specification A 788, a detailed sketch or written description of
ing and retesting methods and procedures, marking, certifica-
tion, product analysis variations, and additional supplementary the forging and the method of selecting the test location (see
requirements. 6.2) should be supplied to the producer, when appropriate areas
of significant in-service loading of the forging need to be
1.6 If the requirements of this specification are in conflict
with the requirements of Specification A 788, the requirements designated.
3.2 The required impact test temperature should be supplied
of this specification shall prevail.
1.7 The values stated in either inch-pound units or SI if different than the temperature listed in Table 3, otherwise the
impact test shall be conducted at the temperature listed in Table
[metric] units are to be regarded separately as the standard;
within the text and tables, the SI units are shown in brackets. 3 for the chosen Grade.
3.3 If a hubbed tube sheet is to be supplied for ASME Boiler
The values stated in each system are not exact equivalents;
therefore, each system must be used independently of the other. and Pressure Code Application Supplementary Requirement
S12 of Specification A 788 should be specified.
Combining values from the two systems may result in noncon-
formance with the specification.
4. Heat Treatment for Mechanical Properties
1.8 Unless the order specifies the applicable “M” specifica-
4.1 Heat treatment shall consist of normalizing and temper-
tion designation, the material shall be furnished to the inch-
ing, double normalizing and tempering, or quenching and
pound units.
tempering at the manufacturer’s option.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
3
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 01.05.
4
A01.06 on Steel Forgings and Billets. Annual Book of ASTM Standards, Vol 01.03.
5
Current edition approved Oct. 10, 2001. Published December 2001. Originally Annual Book of ASTM Standards, Vol 03.01.
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published as A 765–79. Last previous edition A 765/A 765M–98a. Annual Book of ASTM Standards, Vol 03.03.
2 7
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Society of Mechanical Engineers, 345 E. 47th St.,
cation SA–765/SA–765M in Section II of that code. New York, NY 10017.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A 765/A 765M – 01
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TABLE 1 Chemical Requirements
normally referred to as ⁄4 T by T when T is the maximum
Composition, % heat-treated thickness. A thermal buffer may be used to adhere
to the condition in 6.3. Unless otherwise agreed upon, the
Grade I Grade II Gra
...