ASTM A225/A225M-12
(Specification)Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Vanadium-Nickel
Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Vanadium-Nickel
ABSTRACT
This specification covers manganese-vanadium-nickel alloy steel plates intended primarily for welded layered pressure vessels. Plates that shall be used are of Grades C and D and their maximum thickness is limited only by the capacity of the chemical composition to meet the specified mechanical property requirements. The steel shall be killed and shall conform to fine austenitic grain size requirements. The plates shall undergo heat treatment. The mechanical properties such as tensile strength, yield strength, and elongation shall be determined by subjecting the plates to a tension test.
SCOPE
1.1 This specification covers manganese-vanadium-nickel alloy steel plates intended primarily for welded layered pressure vessels.
1.2 Plates under this specification are available in two grades having different strength levels as follows: Grade Tensile Strength, ksi [MPa] C105–135 [725–930] D 3 in. [75 mm] and under 80–105 [550–725] Over 3 in. [75 mm]75–100 [515–690]
1.3 The maximum thickness of plates is limited only by the capacity of the chemical composition to meet the specified mechanical property requirements; however, current mill practice normally limits Grade C to 0.58 in. [15 mm] maximum and Grade D to 6 in. [150 mm] maximum.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, 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.
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Designation: A225/A225M −12
Standard Specification for
Pressure Vessel Plates, Alloy Steel, Manganese-Vanadium-
1
Nickel
This standard is issued under the fixed designationA225/A225M; 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* amination of Steel Plates
2 A578/A578M Specification for Straight-Beam Ultrasonic
1.1 This specification covers manganese-vanadium-nickel
Examination of Rolled Steel Plates for Special Applica-
alloy steel plates intended primarily for welded layered pres-
tions
sure vessels.
1.2 Plates under this specification are available in two 3. General Requirements and Ordering Information
grades having different strength levels as follows:
3.1 Material supplied to this material specification shall
Grade Tensile Strength, ksi [MPa]
conform to Specification A20/A20M. These requirements out-
C 105–135 [725–930]
line the testing and retesting methods and procedures, permit-
D
ted variations in dimensions, and mass, quality and repair of
3 in. [75 mm] and under 80–105 [550–725]
Over 3 in. [75 mm] 75–100 [515–690]
defects, marking, loading, and ordering information.
1.3 The maximum thickness of plates is limited only by the
3.2 In addition to the basic requirements of this
capacity of the chemical composition to meet the specified
specification, certain supplementary requirements are available
mechanical property requirements; however, current mill prac-
when additional control, testing, or examination is required to
ticenormallylimitsGradeCto0.58in.[15mm]maximumand
meet end use requirements. The purchaser is referred to the
Grade D to 6 in. [150 mm] maximum.
listed supplementary requirements in this specification and to
1.4 The values stated in either inch-pound units or SI units the detailed requirements in Specification A20/A20M.
are to be regarded separately as standard. Within the text, the
3.3 Coils are excluded from qualification to this specifica-
SI units are shown in brackets. The values stated in each
tion until they are processed into finished plates. Plates
system are not exact equivalents; therefore, each system must
produced from coil means plates that have been cut to
be used independently of the other. Combining values from the
individuallengthsfromcoil.Theprocessordirectlycontrols,or
two systems may result in nonconformance with the specifi-
is responsible for, the operations involved in the processing of
cation.
coils into finished plates. Such operations include decoiling,
leveling, cutting to length, testing, inspection, conditioning,
2. Referenced Documents
heat treatment (if applicable), packaging, marking, loading for
3
2.1 ASTM Standards:
shipment, and certification.
A20/A20M SpecificationforGeneralRequirementsforSteel
NOTE 1—For plates produced from coil and furnished without heat
Plates for Pressure Vessels
treatment or with stress relieving only, three test results are reported for
A435/A435M Specification for Straight-Beam Ultrasonic
each qualifying coil. Additional requirements regarding plates from coil
Examination of Steel Plates
are described in Specification A20/A20M.
A577/A577M Specification for Ultrasonic Angle-Beam Ex-
3.4 If the requirements of this specification are in conflict
with the requirements of Specification A20/A20M, the require-
ments of this specification shall prevail.
1
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. Materials and Manufacture
A01.11 on Steel Plates for Boilers and Pressure Vessels.
Current edition approved May 1, 2012. Published June 2012. Originally
4.1 Steelmaking Practice—The steel shall be killed and
approved in 1939. Last previous edition approved in 2007 as A225/A225M – 03
shall conform to the fine austenitic grain size requirement of
(2007). DOI: 10.1520/A0225_A0225M-12.
2
Specification A20/A20M.
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SA-225/SA-225M in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5. Heat Treatment
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1 Grade D plates of all thicknesses and Grade C plates of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. thicknesses over 2 in. [50 mm] shall be normalized.
*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
1
---------------------- Page: 1 ------------
...
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:A225/A225M–03(Reapproved2007) Designation: A225/A225M – 12
Standard Specification for
Pressure Vessel Plates, Alloy Steel, Manganese-Vanadium-
1
Nickel
This standard is issued under the fixed designationA225/A225M; 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*
2
1.1 This specification covers manganese-vanadium-nickel alloy steel plates intended primarily for welded layered pressure
vessels.
1.2 Plates under this specification are available in two grades having different strength levels as follows:
Grade Tensile Strength, ksi [MPa]
C 105–135 [725–930]
D
3 in. [75 mm] and under 80–105 [550–725]
Over 3 in. [75 mm] 75–100 [515–690]
1.3 The maximum thickness of plates is limited only by the capacity of the chemical composition to meet the specified
mechanical property requirements; however, current mill practice normally limits Grade C to 0.58 in. [15 mm] maximum and
Grade D to 6 in. [150 mm] maximum.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard.Within the text, 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
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.11
on Steel Plates for Boilers and Pressure Vessels.
Current edition approved Nov. 1, 2007. Published March 2008. Originally approved in 1939. Last previous edition approved in 2003 as A225/A225M–03. DOI:
10.1520/A0225_A0225M-03R07.
Current edition approved May 1, 2012. Published June 2012. Originally approved in 1939. Last previous edition approved in 2007 as A225/A225M – 03 (2007). DOI:
10.1520/A0225_A0225M-12.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-225/SA-225M in Section II of that Code.
*ASummary 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.
1
---------------------- Page: 1 ----------------------
A225/A225M – 12
2. Referenced Documents
3
2.1 ASTM Standards:
A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels
A435/A435M Specification for Straight-Beam Ultrasonic Examination of Steel Plates
A577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel Plates
A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications
3. General Requirements and Ordering Information
3.1Plates3.1 Material supplied to this productmaterial specification shall conform to Specification A20/A20M, which outlines
the testing and retesting methods and procedures, permissible variations in dimensions and mass, quality and repair of defects,
marking, loading, etc.
3.2Specification . These requirements outline the testing and retesting methods and procedures, permitted variations in
dimensions, and mass, quality and repair of defects, marking, loading, and ordering information.
3.2 In addition to the basic requirements of this specification, certain supplementary requirements are available when additional
control, testing, or examination is required to meet end use requirements. The purchaser is referred to the listed supplementary
requirementsinthisspecificationandtothedetailedrequirementsinSpecificationA20/A20Malsoestablishestherulesforordering
information that should be complied with when purchasing plates to this specification.
3.3In addition to the basic requirements of this specification, certain supplementary requirements are available where additional
control, testing, or examination is required to meet end use requirements.
3.4The purchaser is referred to the listed supplementary requirements in this specification and to the detailed requirements in
Specification A20/A20M.
3.5Coils3.3 Coils are excluded from qualification to this specification until they are processed into finished plates. Plates
produced from coil means plates that have been cut to individual lengths from coil. The processor directly controls, or is
responsible for, the operations involved
...
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