ASTM A678/A678M-05(2009)
(Specification)Standard Specification for Quenched-and-Tempered Carbon and High-Strength Low-Alloy Structural Steel Plates (Withdrawn 2010)
Standard Specification for Quenched-and-Tempered Carbon and High-Strength Low-Alloy Structural Steel Plates (Withdrawn 2010)
ABSTRACT
This specification covers quenched-and-tempered carbon steel and high-strength low-alloy steel plates of structural quality for welded, riveted, or bolted construction. The plates shall undergo heat treatment by heating to a temperature that produces an austenitic structure. Heat and product analyses shall be performed on the material and shall conform to the required amount of chemical composition in carbon, manganese, phosphorus, sulfur, silicon, vanadium, columbium, nitrogen, and copper. The plates shall withstand tension test and applicable grade shall conform to the specified mechanical properties such as yield strength, tensile strength, and elongation.
SCOPE
1.1 This specification covers quenched-and-tempered carbon steel and high-strength low-alloy steel plates of structural quality for welded, riveted, or bolted construction.
1.2 If the steel is to be welded, it is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be used.
1.3 Plates under this specification are available in four grades as follows:
GradeYield
Strength,
min, ksi
[MPa]Tensile Strength,
ksi [MPa]
Maximum
Thickness,
in. [mm]
A 50 [345] 70–90 [485–620] 11/2 [40] B 60 [415] 80–100 [550–690] 21/2 [65] C A A 2 [50] D 75 [515] 90–110 [620–760] 3 [75]
A Varies with thickness. See Table 1.
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 is to be used independently of the other.
WITHDRAWN RATIONALE
This specification covers quenched-and-tempered carbon steel and high-strength low-alloy steel plates of structural quality for welded, riveted, or bolted construction.
Formerly under the jurisdiction of Committee A01 on Steel, Stainless Steel and Related Alloys, this specification was withdrawn in October 2010. This standard was withdrawn without replacement due to its limited use by the industry.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A678/A678M – 05 (Reapproved 2009)
Standard Specification for
Quenched-and-Tempered Carbon and High-Strength Low-
Alloy Structural Steel Plates
This standard is issued under the fixed designationA678/A678M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3. General Requirements for Delivery
1.1 This specification covers quenched-and-tempered car- 3.1 Plates furnished under this specification shall conform
bon steel and high-strength low-alloy steel plates of structural to the applicable requirements of the current edition of Speci-
quality for welded, riveted, or bolted construction. fication A6/A6M unless a conflict exists, in which case this
1.2 If the steel is to be welded, it is presupposed that a specification shall prevail.
welding procedure suitable for the grade of steel and intended
4. Materials and Manufacture
use or service will be used.
1.3 Plates under this specification are available in four 4.1 The requirements for fine austenitic grain size in Speci-
fication A6/A6M shall be met.
grades as follows:
Yield
Maximum
5. Heat Treatment
Strength, Tensile Strength,
Grade Thickness,
min, ksi ksi [MPa]
in. [mm] 5.1 The plates shall be heat treated by heating to a tempera-
[MPa]
ture that produces an austenitic structure, but not exceeding
A 50 [345] 70–90 [485–620] 1 ⁄2 [40]
1700°F [925°C], holding a sufficient time to attain uniform
B 60 [415] 80–100 [550–690] 2 ⁄2 [65]
heat throughout the material, quenching in a suitable medium,
AA
C 2 [50]
and tempering at not less than 1100°F [593°C]. The heat-
D 75 [515] 90–110 [620–760] 3 [75]
A
treatment temperatures shall be reported in the test report.
Varies with thickness. See Table 1.
1.4 The values stated in either inch-pound units or SI units
6. Chemical Composition
are to be regarded separately as standard. Within the text, the
6.1 The heat analysis shall conform to the requirements
SI units are shown in brackets. The values stated in each
given in Table 2 for the applicable grade.
system are not exact equivalents; therefore, each system is to
6.2 The product analysis shall conform to the requirements
be used independently of the other.
given in Table 2, subject to the product analysis tolerances in
2. Referenced Documents
Specification A6/A6M.
2.1 ASTM Standards:
7. Tension Test
A6/A6M Specification for General Requirements for Rolled
7.1 The plates as represented by the test specimens shall
Structural Steel Bars, Plates, Shapes, and Sheet Piling
conform to the requirements given in Table 1 specified for the
A370 Test Methods and Definitions for Mechanical Testing
applicable grade.
of Steel Products
7.2 Number of Tests—One tension test shall be taken from
a corner of each plate as heat treated.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
8. Keywords
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
Current edition approved Oct. 1, 2009. Published December 2009. Originally 8.1 bolted construction; carbon; high-strength; low-alloy;
approved in 1973. Last previous edition approved in 2005 as A678/A678M – 05.
plates; quenched; steel; structural steel; tempered; welded
DOI: 10.1520/A0678_A0678M-05R09.
construction
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A678/A678M – 05 (2009)
A
TABLE 1 Mechanical Requirements
Grade A Grade B Grade C Grade D
B
Yield strength , min. ksi [MPa]
To ⁄4 in. [20 mm], incl 50 [345] 60 [415] 75 [515] 75 [515]
3 1
Over ⁄4 to 1 ⁄2 in. [20 to 40 mm], incl 50
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.