ASTM A455/A455M-03
(Specification)Standard Specification for Pressure Vessel Plates, Carbon Steel, High-Strength Manganese
Standard Specification for Pressure Vessel Plates, Carbon Steel, High-Strength Manganese
SCOPE
1.1 This specification covers high-tensile strength carbon-manganese steel plates intended for welded pressure vessels.
1.2 This material is usually made to a semi-killed or capped deoxidation practice. However, at the purchaser's or the producer's option, the material may be made silicon-killed or aluminum-killed.
1.3 The maximum thickness of plates furnished under this specification shall be ¾in. [20 mm].
1.4 For plates produced from coil, the additional requirements, including additional testing requirements and the reporting of additional test results, of Specification A20/A20M apply.1.5 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: A 455/A 455M – 03
Standard Specification for
Pressure Vessel Plates, Carbon Steel, High-Strength
1
Manganese
This standard is issued under the fixed designationA455/A455M; 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.
1. Scope* 3.2 Specification A 20/A 20M also establishes the rules for
2 ordering information that should be complied with when
1.1 This specification covers high-tensile strength carbon-
purchasing plates to this specification.
manganese steel plates intended for welded pressure vessels.
3.3 In addition to the basic requirements of this specifica-
1.2 This steel is usually made to a semi-killed or capped
tion, certain supplementary requirements are available where
deoxidation practice; however, at the purchaser’s or the steel
additional control, testing, or examination is required to meet
producer’s option, the steel may be made silicon-killed or
end use requirements.
aluminum-killed.
3.4 The purchaser is referred to the listed supplementary
1.3 The maximum thickness of plates furnished under this
3 requirements in this specification and to the detailed require-
specification shall be ⁄4 in. [20 mm].
ments in Specification A 20/A 20M.
1.4 For plates produced from coil and furnished without
3.5 Coils are excluded from qualification to this specifica-
heat treatment or with stress relieving only, the additional
tion until they are processed into finished plates. Plates
requirements, including additional testing requirements and the
produced from coil means plates that have been cut to
reporting of additional test results, of Specification A 20/
individual lengths from coil.The processor directly controls, or
A 20M apply.
is responsible for, the operations involved in the processing of
1.5 The values stated in either inch-pound units or SI units
coils into finished plates. Such operations include decoiling,
are to be regarded separately as standard. Within the text, the
leveling, cutting to length, testing, inspection, conditioning,
SI units are shown in brackets. The values stated in each
heat treatment (if applicable), packaging, marking, loading for
system are not exact equivalents; therefore, each system must
shipment, and certification.
be used independently of the other. Combining values from the
two systems may result in nonconformance with the specifi-
NOTE 1—For plates produced from coil and furnished without heat
cation.
treatment or with stress relieving only, three test results are reported for
each qualifying coil. Additional requirements regarding plates from coil
2. Referenced Documents
are described in Specification A 20/A 20M.
2.1 ASTM Standards:
3.6 If the requirements of this specification are in conflict
A 20/A 20M Specification for General Requirements for
with the requirements of Specification A 20/A 20M, the re-
3
Steel Plates for Pressure Vessels
quirements of this specification shall prevail.
3. General Requirements and Ordering Information
4. Heat Treatment
3.1 Plates supplied to this product specification shall con-
4.1 Plates are normally supplied in the as-rolled condition.
form to Specification A 20/A 20M, which outlines the testing
The plates may be ordered normalized or stress relieved, or
and retesting methods and procedures, permissible variations
both.
in dimensions and mass, quality and repair of defects, marking,
5. Chemical Composition
loading, etc.
5.1 The steel shall conform to the chemical requirements
given in Table 1.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
6. Mechanical Properties
A01.11 on Steel Plates for Boilers and Pressure Vessels.
Current edition approved Sept. 10, 2003. Published October 2003. Originally 6.1 Tension Test —The plates, as represented by the tension
approved in 1961. Last previous edition approved in 2001 as A 455/A 445M – 01.
test specimens, shall conform to the requirements given in
Table 2.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SA-455/SA-455M in Section II of that Code.
3
Annual Book of ASTM Standards, Vol 01.04.
*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.
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A 455/A 455M – 03
TABLE 1 Chemical Requirements
Elements Composition, %
A,B
Carbon, max 0.33
Manganese:
Heat analysis 0.85–1.20
Product analysis 0.79–1.30
A
Phosphorus, max 0.035
A
Sulfur, max 0.035
C
Silicon :
Heat
...
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