ASTM A302/A302M-12
(Specification)Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Molybdenum and Manganese-Molybdenum-Nickel
Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Molybdenum and Manganese-Molybdenum-Nickel
ABSTRACT
This specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates intended particularly for welded boilers and other pressure vessels. According to their strength levels, the plates are available in four grades: Grades A, B, C, and D. The maximum thickness of plates 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 grain size requirements. The plates shall be subjected to tension test to determine the tensile strength, yield strength, and elongation.
SCOPE
1.1 This specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates intended particularly for welded boilers and other pressure vessels.
1.2 Plates under this specification are available in four grades having different strength levels as follows:
GradeTensile Strength,
ksi [MPa]Type A75–95 [515–655] manganese-molybdenum B80–100 [550–690]manganese-molybdenum C80–100 [550–690]manganese-molybdenum-nickel D80–100 [550–690]manganese-molybdenum-nickel
1.3 The maximum thickness of plates is limited only by the capacity of the chemical composition to meet the specified mechanical property requirements. The minimum thickness is limited to 0.25 in. [6.5 mm].
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: A302/A302M −12
Standard Specification for
Pressure Vessel Plates, Alloy Steel, Manganese-
1
Molybdenum and Manganese-Molybdenum-Nickel
This standard is issued under the fixed designationA302/A302M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* A577/A577M Specification for Ultrasonic Angle-Beam Ex-
2 amination of Steel Plates
1.1 This specification covers manganese-molybdenum and
A578/A578M Specification for Straight-Beam Ultrasonic
manganese-molybdenum-nickel alloy steel plates intended par-
Examination of Rolled Steel Plates for Special Applica-
ticularly for welded boilers and other pressure vessels.
tions
1.2 Plates under this specification are available in four
grades having different strength levels as follows:
3. General Requirements and Ordering Information
Tensile Strength,
Grade Type
ksi [MPa] 3.1 Material supplied to this material specification shall
A 75–95 [515–655] manganese-molybdenum
conform to Specification A20/A20M. These requirements out-
B 80–100 [550–690] manganese-molybdenum
line the testing and retesting methods and procedures, permit-
C 80–100 [550–690] manganese-molybdenum-nickel
ted variations in dimensions, and mass, quality and repair of
D 80–100 [550–690] manganese-molybdenum-nickel
defects, marking, loading, and ordering information.
1.3 The maximum thickness of plates is limited only by the
capacity of the chemical composition to meet the specified
3.2 In addition to the basic requirements of this
mechanical property requirements. The minimum thickness is
specification, certain supplementary requirements are available
limited to 0.25 in. [6.5 mm].
when additional control, testing, or examination is required to
meet end use requirements. The purchaser is referred to the
1.4 The values stated in either inch-pound units or SI units
listed supplementary requirements in this specification and to
are to be regarded separately as standard. Within the text, the
the detailed requirements in Specification A20/A20M.
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system must
3.3 Coils are excluded from qualification to this specifica-
be used independently of the other. Combining values from the
tion until they are processed into finished plates. Plates
two systems may result in nonconformance with the specifi-
produced from coil means plates that have been cut to
cation.
individuallengthsfromcoil.Theprocessordirectlycontrols,or
is responsible for, the operations involved in the processing of
2. Referenced Documents
coils into finished plates. Such operations include decoiling,
3
2.1 ASTM Standards:
leveling, cutting to length, testing, inspection, conditioning,
A20/A20M SpecificationforGeneralRequirementsforSteel
heat treatment (if applicable), packaging, marking, loading for
Plates for Pressure Vessels
shipment, and certification.
A435/A435M Specification for Straight-Beam Ultrasonic
NOTE 1—For plates produced from coil and furnished without heat
Examination of Steel Plates
treatment or with stress relieving only, three test results are reported for
each qualifying coil. Additional requirements regarding plates from coil
are described in Specification A20/A20M.
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
3.4 If the requirements of this specification are in conflict
A01.11 on Steel Plates for Boilers and Pressure Vessels.
with the requirements of Specification A20/A20M, the require-
Current edition approved May 1, 2012. Published June 2012. Originally
ments of this specification shall prevail.
approved in 1947. Last previous edition approved in 2007 as A302/
A302M – 03 (2007). DOI: 10.1520/A0302_A0302M-12.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
4. Materials and Manufacture
cation SA-302/SA-302M in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1 Steelmaking Practice—The steel shall be killed and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
shall conform to the fine grain size requirement of Specifica-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tion A20/A20M.
*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
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...
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:A302/A302M–03(Reapproved2007) Designation: A302/A302M – 12
Standard Specification for
Pressure Vessel Plates, Alloy Steel, Manganese-
1
Molybdenum and Manganese-Molybdenum-Nickel
This standard is issued under the fixed designationA302/A302M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
2
1.1 This specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates intended
particularly for welded boilers and other pressure vessels.
1.2 Plates under this specification are available in four grades having different strength levels as follows:
Tensile Strength,
Grade Type
ksi [MPa]
A 75–95 [515–655] manganese-molybdenum
B 80–100 [550–690] manganese-molybdenum
C 80–100 [550–690] manganese-molybdenum-nickel
D 80–100 [550–690] manganese-molybdenum-nickel
1.3 The maximum thickness of plates is limited only by the capacity of the chemical composition to meet the specified
mechanical property requirements. The minimum thickness is limited to 0.25 in. [6.5 mm].
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.May 1, 2007.2012. Published March 2008.June 2012. Originally approved in 1947. Last previous edition approved in 20032007 as
A302/A302M – 03 (2007). DOI: 10.1520/A0302_A0302M-03R07.10.1520/A0302_A0302M-12.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-302/SA-302M 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
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A302/A302M – 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, and so forth.
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 i
...
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