ASTM A455/A455M-90(1996)e1

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
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.11 - Steel Plates for Boilers and Pressure Vessels

Relations

• Replaced By: ASTM A455/A455M-90(2001) - 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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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.
e1
Designation: A 455/A 455M – 90 (Reapproved 1996)
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.
e NOTE—Editorial corrections were made to this standard in August 1999.
1. Scope tary requirements are available to meet end use requirements as
follows:
1.1 This specification covers high-tensile strength carbon-
3.3.1 Simulated post-weld heat treatment of test coupons,
manganese steel plates intended for welded pressure vessels.
and
1.2 This material is usually made to a semi-killed or capped
3.3.2 Bend test.
deoxidation practice. However, at the purchaser’s or the
3.4 The purchaser is referred to the listed supplementary
producer’s option, the material may be made silicon-killed or
requirements in this specification and to the detailed require-
aluminum-killed.
ments in Specification A 20/A 20M.
1.3 The maximum thickness of plates furnished under this
3 3.5 If the requirements of this specification are in conflict
specification shall be ⁄4in. [20 mm].
with the requirements of Specification A 20/A 20M, the re-
1.4 The values stated in either inch-pound units or SI units
quirements of this specification shall prevail.
are to be regarded separately as standard. Within the text, the
SI units are shown in brackets. The values stated in each
4. Heat Treatment
system are not exact equivalents; therefore, each system must
4.1 Plates are normally supplied in the as-rolled condition.
be used independently of the other. Combining values from the
The plates may be ordered normalized or stress relieved, or
two systems may result in nonconformance with the specifi-
both.
cation.
5. Chemical Requirements
2. Referenced Documents
5.1 The steel shall conform to the chemical requirements
2.1 ASTM Standards:
shown in Table 1.
A 20/A 20M Specification for General Requirements for
Steel Plates for Pressure Vessels
6. Mechanical Requirements
6.1 Tension Test Requirements—The material as represented
3. General Requirements and Ordering Information
by the tension-test specimens shall conform to the require-
3.1 Material supplied to this material specification shall
ments shown in Table 2.
conform to Specification A 20/A 20M. These requirements
outline the testing and retesting methods and procedures,
TABLE 1 Chemical Requirements
permissible variations in dimensions, and mass, quality and
repair of defects, marking, loading, etc.
Elements Composition, %
3.2 Specification A 20/A 20M also establishes the rules for
A,B
Carbon, max 0.33
the ordering information that should be complied with when
Manganese:
Heat analysis 0.85–1.20
purchasing material to this specification.
Product analysis 0.79–1.30
3.3 In addition to the basic requirements, two supplemen-
A
Phosphorus, max 0
...