ASTM A302/A302M-03

Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Molybdenum and Manganese-Molybdenum-Nickel

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:Grade Tensile Strength, ksi [MPa] TypeA 75-95 [515-655] Mn-MoB 80-100 [550-690] Mn-MoC 80-100 [550-690] Mn-Mo-NiD 80-100 [550-690] Mn-Mo-Ni
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.

General Information

• Status: Historical
• Publication Date: 09-Sep-2003
• 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

Relations

• Replaces: ASTM A302/A302M-97e1 - Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Molybdenum and Manganese-Molybdenum-Nickel
• Effective Date: 10-Sep-2003
• Replaced By: ASTM A302/A302M-03(2007) - Standard Specification for Pressure Vessel Plates, Alloy Steel, Manganese-Molybdenum and Manganese-Molybdenum-Nickel
• Effective Date: 01-Nov-2007
• Referred By: ASTM A20/A20M-20 - Standard Specification for General Requirements for Steel Plates for Pressure Vessels
• Effective Date: 10-Sep-2003
• Referred By: ASTM A672/A672M-19 - Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures
• Effective Date: 10-Sep-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 302/A 302M – 03
Standard Specification for
Pressure Vessel Plates, Alloy Steel, Manganese-
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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 (e) 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* and retesting methods and procedures, permissible variations
2 in dimensions and mass, quality and repair of defects, marking,
1.1 This specification covers manganese-molybdenum and
loading, and so forth.
manganese-molybdenum-nickel alloy steel plates intended par-
3.2 Specification A 20/A 20M also establishes the rules for
ticularly for welded boilers and other pressure vessels.
ordering information that should be complied with when
1.2 Plates under this specification are available in four
purchasing plates to this specification.
grades having different strength levels as follows:
3.3 In addition to the basic requirements of this specifica-
Grade Tensile Strength, ksi [MPa] Type
tion, certain supplementary requirements are available where
A 75–95 [515–655] Mn-Mo
additional control, testing, or examination is required to meet
B 80–100 [550–690] Mn-Mo
end use requirements.
C 80–100 [550–690] Mn-Mo-Ni
3.4 The purchaser is referred to the listed supplementary
D 80–100 [550–690] Mn-Mo-Ni
requirements in this specification and to the detailed require-
1.3 The maximum thickness of plates is limited only by the
ments in Specification A 20/A 20M.
capacity of the chemical composition to meet the specified
3.5 Coils are excluded from qualification to this specifica-
mechanical property requirements. The minimum thickness is
tion until they are processed into finished plates. Plates
limited to 0.25 in. [6.5 mm].
produced from coil means plates that have been cut to
1.4 The values stated in either inch-pound units or SI units
individuallengthsfromcoil.Theprocessordirectlycontrols,or
are to be regarded separately as standard. Within the text, the
is responsible for, the operations involved in the processing of
SI units are shown in brackets. The values stated in each
coils into finished plates. Such operations include decoiling,
system are not exact equivalents; therefore, each system must
leveling, cutting to length, testing, inspection, conditioning,
be used independently of the other. Combining values from the
heat treatment (if applicable), packaging, marking, loading for
two systems may result in nonconformance with the specifi-
shipment, and certification.
cation.
NOTE 1—For plates produced from coil and furnished without heat
2. Referenced Documents
treatment or with stress relieving only, three test results are reported for
each qualifying coil. Additional requirements regarding plates from coil
2.1 ASTM Standards:
are described in Specification A 20/A 20M.
A 20/A20M Specification for General Requirements for
3
3.6 If the requirements of this specification are in conflict
Steel Plates for Pressure Vessels
with the requirements of Specification A 20/A 20M, the re-
3. General Requirements and Ordering Information
quirements of this specification shall prevail.
3.1 Plates supplied to this product specification shall con-
4. Materials and Manufacture
form to Specification A 20/A 20M, which outlines the testing
4.1 Steelmaking Practice—The steel shall be killed and
shall conform to the fine grain size requirement of Specifica-
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
tion A 20/A 20M.
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
A01.11 on Steel Plates for Boilers and Pressure Vessels.
5. Heat Treatment
Current edition approved Sept. 10, 2003. Published October 2003. Originally
e1
approved in 1947. Last previous edition approved in 1997 asA 302/A 302M – 97 .
5.1 Plates 2 in. [50 mm] and under in thickness are normally
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
supplied in the as-rolled condition. Plates may be ordered
cation SA-302/SA-302M in Section II of that Code.
3
Annual Book of ASTM Standards, Vol 01.04. normalized or stress relieved, or both.
*ASummary of Changes section appears at the end of this standard.
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A 302/A 302M – 03
TABLE 1 Chemical Requirements
5.2 Plates over 2 in. [50 mm] in thickness shall be normal-
ized. Composition, %
5.3 When normalizing plates 4 in. [100 mm] or over in
Elements Gra
...