ASTM A455/A455M-90(2001)

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.

General Information

• Status: Historical
• Publication Date: 09-Sep-2001
• ICS: 77.140.30 - Steels for pressure purposes
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.11 - Steel Plates for Boilers and Pressure Vessels

Relations

• Replaces: ASTM A455/A455M-90(1996)e1 - Standard Specification for Pressure Vessel Plates, Carbon Steel, High-Strength Manganese
• Effective Date: 10-Sep-2001
• Replaced By: ASTM A455/A455M-01 - Standard Specification for Pressure Vessel Plates, Carbon Steel, High-Strength Manganese
• Effective Date: 10-Sep-2001
• Referred By: ASTM A20/A20M-20 - Standard Specification for General Requirements for Steel Plates for Pressure Vessels
• Effective Date: 10-Sep-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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.
Designation: A 455/A 455M – 90 (Reapproved 2001)
Standard Specification for
Pressure Vessel Plates, Carbon Steel, High-Strength
Manganese
This standard is issued under the fixed designation A 455/A 455M; 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 3.3.1 Simulated post-weld heat treatment of test coupons,
and
1.1 This specification covers high-tensile strength carbon-
3.3.2 Bend test.
manganese steel plates intended for welded pressure vessels.
3.4 The purchaser is referred to the listed supplementary
1.2 This material is usually made to a semi-killed or capped
requirements in this specification and to the detailed require-
deoxidation practice. However, at the purchaser’s or the
ments in Specification A 20/A 20M.
producer’s option, the material may be made silicon-killed or
3.5 If the requirements of this specification are in conflict
aluminum-killed.
with the requirements of Specification A 20/A 20M, the re-
1.3 The maximum thickness of plates furnished under this
quirements of this specification shall prevail.
specification shall be ⁄4in. [20 mm].
1.4 The values stated in either inch-pound units or SI units
4. Heat Treatment
are to be regarded separately as standard. Within the text, the
4.1 Plates are normally supplied in the as-rolled condition.
SI units are shown in brackets. The values stated in each
The plates may be ordered normalized or stress relieved, or
system are not exact equivalents; therefore, each system must
both.
be used independently of the other. Combining values from the
two systems may result in nonconformance with the specifi-
5. Chemical Requirements
cation.
5.1 The steel shall conform to the chemical requirements
2. Referenced Documents shown in Table 1.
2.1 ASTM Standards:
6. Mechanical Requirements
A 20/A 20M Specification for General Requirements for
2 6.1 Tension Test Requirements—The material as represented
Steel Plates for Pressure Vessels
by the tension-test specimens shall conform to the require-
3. General Requirements and Ordering Information ments shown in Table 2.
3.1 Material supplied to this material specification shall
TABLE 1 Chemical Requirements
conform to Specification A 20/A 20M. These requirements
outline the testing and retesting methods and procedures,
Elements Composition, %
permissible variations in dimensions, and mass, quality and
A,B
Carbon, max 0.33
repair of defects, marking, loading, etc.
Manganese:
Heat analysis 0.85–1.20
3.2 Specification A 20/A 20M also establishes the rules for
Product analysis 0.79–1.30
the ordering information that should be complied with when
A
Phosphorus, max 0.035
A
purchasing mat
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