Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

SCOPE
1.1 This specification covers chromium, chromium-nickel, and chromium-manganese-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. 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.
1.3 This specification is expressed in both inch-pound and SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished in inch-pound units.

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09-Mar-2001
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ASTM A240/A240M-01 - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: A 240/A 240M – 01
Standard Specification for
Heat-Resisting Chromium and Chromium-Nickel Stainless
1
Steel Plate, Sheet, and Strip for Pressure Vessels
This standard is issued under the fixed designation A 240/A 240M; 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 tions are expressed in both inch-pound and SI units. However,
2
unless the order specifies the applicable “M” specification
1.1 This specification covers chromium, chromium-nickel,
designation (SI units), the material shall be furnished in
and chromium-manganese-nickel stainless and heat-resisting
inch-pound units.
steel plate, sheet, and strip for pressure vessels.
1.2 Some steels covered by this specification, especially the
2. Referenced Documents
chromium steels, because of their particular alloy content and
2.1 ASTM Standards:
specialized properties, may require special care in their fabri-
A 370 Test Methods and Definitions for Mechanical Testing
cation and welding. Specific procedures are of fundamental
3
of Steel Products
importance, and it is presupposed that all parameters will be in
A 480/A 480M Specification for General Requirements for
accordance with approved methods capable of producing the
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
desired properties in the finished fabrication.
3
Sheet, and Strip
1.3 The values stated in either inch-pound units or SI units
A 923 Test Methods for Detecting Detrimental Intermetallic
are to be regarded separately as standard. The values stated in
Phase in Wrought Duplex Austenitic/Ferritic Stainless
each system are not exact equivalents; therefore, each system
3
Steels
must be used independently of the other. Combining values
4
E 112 Test Methods for Determining Average Grain Size
from the two systems may result in nonconformance with the
5
E 527 Practice for Numbering Metals and Alloys (UNS)
specification.
2.2 SAE Standard:
1.4 This specification and the applicable material specifica-
6
J 1086 Practice for Numbering Metals and Alloys (UNS)
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
3
A01.17 on Flat Stainless Steel Products. Annual Book of ASTM Standards, Vol 01.03.
4
Current edition approved Mar. 10, 2001. Published April 2001. Originally Annual Book of ASTM Standards, Vol 03.01.
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published as A 240 – 40 T. Last previous edition A 240/A 240M – 00a. Annual Book of ASTM Standards, Vol 01.01.
6
2
Available from Society of Automotive Engineers, 400 Commonwealth Dr.,
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SA-240 in Section II of that Code. Warrendale, PA 15096.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A 240/A 240M
3. General Requirements 4. Chemical Composition
3.1 The following requirements for orders for material
4.1 The steel shall conform to the requirements as to
furnished under this specification shall conform to the appli-
chemical composition specified in Table 1, and shall conform
cable requirements of the current edition of Specification
to applicable requirements specified in Specification A 480/
A 480/A 480M.
A 480M.
3.1.1 Definitions,
3.1.2 General requirements for delivery,
5. Mechanical Properties
3.1.3 Ordering information,
5.1 The material shall conform to the mechanical properties
3.1.4 Process,
specified in Table 2.
3.1.5 Special tests,
5.2 When specified by the purchaser, Charpy impact tests
3.1.6 Heat treatment,
shall be performed in accordance with Supplementary Require-
3.1.7 Dimensions and permissible variations,
ment S1.
3.1.8 Workmanship, finish and appearance,
3.1.9 Number of tests/test methods,
6. Materials for High-Temperature Service
3.1.10 Specimen preparation,
6.1 The austenitic H Types shall conform to an average
3.1.11 Retreatment,
grain size of ASTM No. 7 or coarser as measured by Test
3.1.12 Inspection,
Methods E 112.
3.1.13 Rejection and rehearing,
6.2 Supplementary Requirement S2 shall be invoked when
3.1.14 Material test report,
3.1.15 Certification, and non-H grade austenitic stainless steels are ordered for ASME
3.1.16 Packaging, marking, and loading. Code applications for service above 1000°F [540°C].
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A 240/A 240M
3
A
TABLE 1 Chemical Composition Requirements, %
C D
UNS Type Car
...

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