ASTM A592/A592M-10(2015)
(Specification)Standard Specification for High-Strength Quenched and Tempered Low-Alloy Steel Forged Parts for Pressure Vessels
Standard Specification for High-Strength Quenched and Tempered Low-Alloy Steel Forged Parts for Pressure Vessels
ABSTRACT
ASTM A592/A592M-04 covers the standard specification for high-strength quenched and tempered low-alloy steel forged fittings and parts used for pressure vessels. The steel shall be made by a melting process and shall be fully killed and fine grained. After forging and before reheating, the forgings shall be cooled to provide substantially complete transformation of austenite. Samples for mechanical test specimens shall be removed after the quenching and tempering heat treatment. The test specimens may be machined from a production forging or from special forged blocks suitably worked and heat treated with the production forgings. Such special blocks shall be obtained from an ingot, slab, or billet from the same heat as the forgings they represent and shall be reduced by forging in a manner similar to that for the products to be represented. The specimens shall undergo tension and Charpy V-notch impact tests.
SCOPE
1.1 This specification2 covers high-strength quenched and tempered low-alloy steel forged parts for pressure vessels. The maximum thickness of forgings under this specification shall be 11/2 in. [38 mm] for Grade A, and 4 in. [100 mm] for Grades E and F.
Note 1: These grades are similar to corresponding grades in Specification A517/A517M.
1.2 Although no provision is made for supplementary requirements in this standard, the supplementary requirements in Specification A788/A788M may be considered by the purchaser.
1.3 Welding technique is of fundamental importance and it is presupposed that welding procedures will be in accordance with approved methods for the class of material used.
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.
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Designation:A592/A592M −10 (Reapproved 2015)
Standard Specification for
High-Strength Quenched and Tempered Low-Alloy Steel
Forged Parts for Pressure Vessels
This standard is issued under the fixed designationA592/A592M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope A517/A517M Specification for PressureVessel Plates,Alloy
2 Steel, High-Strength, Quenched and Tempered
1.1 This specification covers high-strength quenched and
A788/A788M Specification for Steel Forgings, General Re-
tempered low-alloy steel forged parts for pressure vessels. The
quirements
maximum thickness of forgings under this specification shall
E112 Test Methods for Determining Average Grain Size
be 1 ⁄2 in. [38 mm] for GradeA, and 4 in. [100 mm] for Grades
E and F.
3. Ordering Information and General Requirements
NOTE 1—These grades are similar to corresponding grades in Specifi-
3.1 In addition to the ordering information required by
cation A517/A517M.
Specification A788/A788M, the purchaser shall include with
1.2 Although no provision is made for supplementary re-
the inquiry and order the following information:
quirements in this standard, the supplementary requirements in
3.1.1 Adetailed drawing, a sketch, or written description of
Specification A788/A788M may be considered by the pur-
the forging.
chaser.
3.1.2 The charpy impact test temperature if a test tempera-
1.3 Welding technique is of fundamental importance and it
ture lower than 32°F [0°C] is required.
is presupposed that welding procedures will be in accordance
3.1.3 Additional heat treatment cycles to be applied to the
with approved methods for the class of material used.
mechanical test specimens following removal from the heat-
1.4 The values stated in either SI units or inch-pound units
treated forging or special forged test block.
are to be regarded separately as standard. The values stated in
3.1.4 Required supplementary requirement(s) from Specifi-
each system may not be exact equivalents; therefore, each
cation A788/A788M.
system shall be used independently of the other. Combining
3.2 Material supplied to this specification shall conform to
values from the two systems may result in non-conformance
the requirements of Specification A788/A788M, which out-
with the standard.
lines additional ordering information, manufacturing
1.5 Unless the order specifies the applicable “M” specifica-
requirements, testing and retesting methods and procedures,
tion designation, the material shall be furnished to the inch-
marking, certification, product analysis variations, and addi-
pound units.
tional supplementary requirements. Failure to comply with the
requirements of Specification A788/A788M constitutes non-
2. Referenced Documents
conformance with this specification.
2.1 ASTM Standards:
3.3 If the requirements of this specification are in conflict
A370 Test Methods and Definitions for Mechanical Testing
with the requirements of Specification A788/A788M, the
of Steel Products
requirements of this specification shall prevail.
4. Materials and Manufacture
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee 4.1 MeltingProcess—The steel shall be made in accordance
A01.06 on Steel Forgings and Billets.
with the Melting Process Section of Specification A788/
Current edition approved March 1, 2015. Published March 2015. Originally
A788M.
approved in 1968. Last previous edition approved in 2010 as A592/A592M – 10.
DOI: 10.1520/A0592_A0592M-10R15.
4.2 Grain Size—The steel shall be fully killed, fine grained
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
(ASTM No. 5 or finer), as determined in accordance with Test
cation SA-592/SA-592M in Section II of that Code.
Methods E112, Plate IV.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4.3 Discard—Sufficient discard shall be made from each
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ingottoensurefreedomfrompipingandexcessivesegregation.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A592/A592M−10 (2015)
TABLE 2 Tensile Requirements
4.4 The finished product shall be a hot-worked forging as
1 1
defined by Specification A788/A788M, and shall be forged as Up to 2 ⁄2 in. Over 2 ⁄2 in.to4in.
[65 mm], incl [65 to 100 mm], incl
close as practicable to the finished shape and size.
Tensile strength, psi (MPa) 115 000 to 135 000 105 000 to 135 000
[795 to 930] [725 to 930]
5. Heat Treatment
Yield strength (0.2 % offset), min, 100 000 [690] 90 000 [620]
psi [MPa]
5.1 After forging and before reheating, the forgings shall be
Elongation in 2 in. [50 mm], 18 17
cooled to provide substantially complete transformation of
min, %
austenite. Heat treatment for properties shall consist of heating
Reduction of area, min, % 45 40
the forgings to not less than 1650°F [900°C], quenching in a
liquid medium, and tempering at 1150°F [620°C] minimum,
with a holding time of 1 h/in. [1 h/25 mm] minimum, but in no
case less than ⁄2 h.
3 for lateral expansion opposite the notch in Charpy V-notch
impact tests. In addition, for the Charpy impact test, the values
6. Chemical Requirements
of energy absorption in foot-pounds [or joules] and the fracture
6.1 Heat Analysis—The heat analysis obtained from sam- appearance in percent shear shall be recorded and reported for
pling in acc
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A592/A592M − 10 A592/A592M − 10 (Reapproved 2015)
Standard Specification for
High-Strength Quenched and Tempered Low-Alloy Steel
Forged Parts for Pressure Vessels
This standard is issued under the fixed designation A592/A592M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*Scope
1.1 This specification covers high-strength quenched and tempered low-alloy steel forged parts for pressure vessels. The
maximum thickness of forgings under this specification shall be 1 ⁄2 in. [38 mm] for Grade A, and 4 in. [100 mm] for Grades E
and F.
NOTE 1—These grades are similar to corresponding grades in Specification A517/A517M.
1.2 Although no provision is made for supplementary requirements in this standard, the supplementary requirements in
Specification A788/A788M may be considered by the purchaser.
1.3 Welding technique is of fundamental importance and it is presupposed that welding procedures will be in accordance with
approved methods for the class of material used.
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.
2. Referenced Documents
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A517/A517M Specification for Pressure Vessel Plates, Alloy Steel, High-Strength, Quenched and Tempered
A788/A788M Specification for Steel Forgings, General Requirements
E112 Test Methods for Determining Average Grain Size
3. Ordering Information and General Requirements
3.1 In addition to the ordering information required by Specification A788/A788M, the purchaser shall include with the inquiry
and order the following information:
3.1.1 A detailed drawing, a sketch, or written description of the forging.
3.1.2 The charpy impact test temperature if a test temperature lower than 32°F [0°C] is required.
3.1.3 Additional heat treatment cycles to be applied to the mechanical test specimens following removal from the heat- treated
heat-treated forging or special forged test block.
3.1.4 Required supplementary requirement(s) from Specification A788/A788M.
3.2 Material supplied to this specification shall conform to the requirements of Specification A788/A788M, which outlines
additional ordering information, manufacturing requirements, testing and retesting methods and procedures, marking, certification,
product analysis variations, and additional supplementary requirements. Failure to comply with the requirements of Specification
A788/A788M constitutes non-conformance with this specification.
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.06
on Steel Forgings and Billets.
Current edition approved Nov. 1, 2010March 1, 2015. Published December 2010March 2015. Originally approved in 1968. Last previous edition approved in 20092010
as A592/A592M – 04 (2009).A592/A592M – 10. DOI: 10.1520/A0592_A0592M-10. 10.1520/A0592_A0592M-10R15.
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-592/SA-592M in Section II of that Code.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
A592/A592M − 10 (2015)
3.3 If the requirements of this specification are in conflict with the requirements of Specification A788/A788M, the
requirements of this specification shall prevail.
4. Materials and Manufacture
4.1 Melting Process—The steel shall be made in accordance with the Melting Process Section of Specification A788/A788M.
4.2 Grain Size—The steel shall be fully killed, fine grained (ASTM No. 5 or finer), as determined in accordance with Test
Methods E112, Plate IV.
4.3 Discard—Sufficient discard shall be made from each ingot to ensure freedom from piping and excessive segregation.
4.4 The finished product shall be a hot-worked forging as defined by Specification A788/A788M, and shall be forged as close
as practicable to the finished shape and size.
5. Heat Treatment
5.1 After forging and before reheating, the forgings shall be cooled to provide substantially complete transformation of
austenite. Heat treatment for properties shall consist of heating the forgings to not less than 1650°F [900°C], quenching in a liquid
medium, and tempering at 1150°F [620°C] minimum, with a holding time of 1 h/in. [1 h/25 mm] minimum, but in no case less
than ⁄2 h.
6. Chemical Requirements
6.1 Heat Analysis—The heat analysis obtained from sampling in accordance with Specification A788/A788M shall comply with
Table 1.
6.2 Product Analysis—The purchaser may use the product analysis provision of Specification A788/A788M to obtain a product
analysis from a forging representing each heat or multiple heat.
TABLE 1 Chemical Requirements
Element Composition, %
A A A
Grade A Grade E Grade F
Carbon
0.15–0.21 0.12–0.20 0.10–0.20
Manganese
0.80–1.10 0.40–0.70 0.60–1.00
Phosphorus, max 0.025 0.025 0.025
Sulfur, max 0.025 0.025 0.025
Silicon
0.40–0.80 0.20–0.35 0.15–0.35
Nickel
. . . . . . 0.70–1.00
Chromium
0.50–0.80 1.40–2.00 0.40–0.65
Molybdenum
0.18–0.28 0.40–0.60
...
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