ASTM A302/A302M-17

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 specification2 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:    
Grade  
Tensile Strength,
ksi [MPa]  
Type  
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.  
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.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 31-Oct-2017
• ICS: 77.140.30 - Steels for pressure purposes
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.11 - Steel Plates for Boilers and Pressure Vessels

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: A302/A302M −17
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* 2. Referenced Documents
3
2
2.1 ASTM Standards:
1.1 This specification covers manganese-molybdenum and
A20/A20M SpecificationforGeneralRequirementsforSteel
manganese-molybdenum-nickel alloy steel plates intended par-
Plates for Pressure Vessels
ticularly for welded boilers and other pressure vessels.
A435/A435M Specification for Straight-Beam Ultrasonic
1.2 Plates under this specification are available in four
Examination of Steel Plates
grades having different strength levels as follows:
A577/A577M Specification for Ultrasonic Angle-Beam Ex-
Tensile Strength,
amination of Steel Plates
Grade Type
ksi [MPa]
A578/A578M Specification for Straight-Beam Ultrasonic
A 75–95 [515–655] manganese-molybdenum
Examination of Rolled Steel Plates for Special Applica-
B 80–100 [550–690] manganese-molybdenum
C 80–100 [550–690] manganese-molybdenum-nickel
tions
D 80–100 [550–690] manganese-molybdenum-nickel
3. General Requirements and Ordering Information
1.3 The maximum thickness of plates is limited only by the
3.1 Material supplied to this material specification shall
capacity of the chemical composition to meet the specified
conform to Specification A20/A20M. These requirements out-
mechanical property requirements.
line the testing and retesting methods and procedures, permit-
1.4 The values stated in either inch-pound units or SI units
ted variations in dimensions, and mass, quality and repair of
are to be regarded separately as standard. Within the text, the
defects, marking, loading, and ordering information.
SI units are shown in brackets. The values stated in each
3.2 In addition to the basic requirements of this
system are not exact equivalents; therefore, each system must
specification, certain supplementary requirements are available
be used independently of the other. Combining values from the
when additional control, testing, or examination is required to
two systems may result in nonconformance with the specifi-
meet end use requirements. The purchaser is referred to the
cation.
listed supplementary requirements in this specification and to
1.5 This international standard was developed in accor-
the detailed requirements in Specification A20/A20M.
dance with internationally recognized principles on standard-
3.3 Coils are excluded from qualification to this specifica-
ization established in the Decision on Principles for the
tion until they are processed into finished plates. Plates
Development of International Standards, Guides and Recom-
produced from coil means plates that have been cut to
mendations issued by the World Trade Organization Technical
individuallengthsfromcoil.Theprocessordirectlycontrols,or
Barriers to Trade (TBT) Committee.
is responsible for, the operations involved in the processing of
coils into finished plates. Such operations include decoiling,
leveling, cutting to length, testing, inspection, conditioning,
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
heat treatment (if applicable), packaging, marking, loading for
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
shipment, and certification.
A01.11 on Steel Plates for Boilers and Pressure Vessels.
Current edition approved Nov. 1, 2017. Published November 2017. Originally
3
approved in 1947. Last previous edition approved in 2012 as A302/A302M – 12. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
DOI: 10.1520/A0302_A0302M-17. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- Standardsvolume information, refer to the standard’s Document Summary page on
cation SA-302/SA-302M in Section II of that Code. 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
1

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A302/A302M − 17
TABLE 1 Chemical Requirements
NOTE 1—Where “…” appears, there is no requirement.
Composition, %
Elements
Grade A Grade B Grade C Grade D
A
Carbon, max:
Up to 1 in. [25 mm], incl, in thickness 0.20 0.20 0.20 0.20
Over 1 to 2 in. [50 mm], incl
...

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 − 12 A302/A302M − 17
Standard Specification for
Pressure Vessel Plates, Alloy Steel, Manganese-
1
Molybdenum and Manganese-Molybdenum-Nickel
This standard is issued under the fixed designation A302/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*
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.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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
3.1 Material supplied to this material specification shall conform to Specification A20/A20M. 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
requirements in this specification and to the detailed requirements 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 A01.11
on Steel Plates for Boilers and Pressure Vessels.
Current edition approved May 1, 2012Nov. 1, 2017. Published June 2012November 2017. Originally approved in 1947. Last previous edition approved in 20072012 as
A302/A302M – 03 (2007).A302/A302M – 12. DOI: 10.1520/A0302_A0302M-12.10.1520/A0302_A0302M-17.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-302/SA-302M in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Standardsvolume 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
1

---------------------- Page: 1 ----------------------
A302/A302M − 17
3.3 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 in the processing of coils into finished plates. Such operations in
...