ASTM A663/A663M-89(2006)
(Specification)tandard Specification for Steel Bars, Carbon, Merchant Quality, Mechanical Properties
tandard Specification for Steel Bars, Carbon, Merchant Quality, Mechanical Properties
ABSTRACT
This specification covers hot-wrought merchant quality carbon steel bars and bar size shapes produced to mechanical property requirements and intended for noncritical constructional applications. The bars shall be available in round, square and hexagonal shapes. The steel shall be made by the open-hearth, basic-oxygen, or electric-furnace process. The specimens shall undergo a tension test to determine tensile strength, yield point and elongation. The merchant quality bars shall be from visible pipe; however, they may contain pronounced chemical segregation. Internal porosity, surface seams, and other surface irregularities may be present in this quality. The bars shall also be furnished as rolled and not pickled, blast cleaned, or oiled.
SCOPE
1.1 This specification covers hot-wrought merchant quality carbon steel bars and bar size shapes produced to mechanical property requirements and intended for noncritical constructional applications (see ).
1.2 Merchant quality hot-wrought steel bar is available in the following ranges of size and section:
1.2.1 Rounds, squares, and hexagons with diameters or distance across flats under 3 in. [75 mm].
1.2.2 Bar size shapes with maximum dimensions under 3 in. [75 mm].
1.2.3 Other bar sections with weight per foot under 40.84 lb/ft [60.78 kg/m].
1.2.4 Flats 6 in. [152 mm] or under in width, over 0.203 in. [over 5 mm in thickness up to 150 mm in width] in thickness, and under 40.84 lb/ft or 12 in.2[77.4 cm2] in cross-sectional area.
1.2.5 Flats over 6 in. to 8 in., inclusive in width, 0.230 in. and over [over 6 mm in thickness and over 50 mm through 200 mm in width] in thickness and under 40.84 lb/ft [60.78 kg/m] or 12 in.2 [77.4 cm2] in cross-sectional area.
1.2.6 Hot-wrought merchant quality carbon steel bars subject to mechanical property requirements are hot wrought in straight lengths only.
1.3 Some applications may require one or more of the available designations shown under supplementary requirements. Note 1Special quality hot-wrought carbon steel bars subject to mechanical property requirements are covered in Specification A 675/A 675M.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A663/A663M – 89 (Reapproved 2006)
Standard Specification for
Steel Bars, Carbon, Merchant Quality, Mechanical
Properties
This standard is issued under the fixed designationA663/A663M; 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.
This standard has been approved for use by agencies of the Department of Defense.
mechanical property requirements are covered in Specification A675/
1. Scope
A675M.
1.1 This specification covers hot-wrought merchant quality
1.4 The values stated in either SI units or inch-pound units
carbon steel bars and bar size shapes produced to mechanical
are to be regarded separately as standard. The values stated in
property requirements and intended for noncritical construc-
each system may not be exact equivalents; therefore, each
tional applications (see 7.2).
system shall be used independently of the other. Combining
1.2 Merchant quality hot-wrought steel bar is available in
values from the two systems may result in non-conformance
the following ranges of size and section:
with the standard.
1.2.1 Rounds, squares, and hexagons with diameters or
distance across flats under 3 in. [75 mm].
2. Referenced Documents
1.2.2 Bar size shapes with maximum dimensions under 3 in.
2.1 ASTM Standards:
[75 mm].
A29/A29M Specification for Steel Bars, Carbon and Alloy,
1.2.3 Other bar sections with weight per foot under
Hot-Wrought, General Requirements for
40.84 lb/ft [60.78 kg/m].
A370 Test Methods and Definitions for Mechanical Testing
1.2.4 Flats 6 in. [152 mm] or under in width, over 0.203 in.
of Steel Products
[over 5 mm in thickness up to 150 mm in width] in thickness,
2 2
A675/A675M Specification for Steel Bars, Carbon, Hot-
and under 40.84 lb/ft or 12 in. [77.4 cm ] in cross-sectional
Wrought, Special Quality, Mechanical Properties
area.
E290 Test Methods for Bend Testing of Material for Duc-
1.2.5 Flats over 6 in. to 8 in., inclusive in width, 0.230 in.
tility
and over [over 6 mm in thickness and over 50 mm through 200
mm in width] in thickness and under 40.84 lb/ft [60.78 kg/m]
3. Ordering Information
2 2
or 12 in. [77.4 cm ] in cross-sectional area.
3.1 Orders for material under this specification should
1.2.6 Hot-wrought merchant quality carbon steel bars sub-
include the following information:
ject to mechanical property requirements are hot wrought in
3.1.1 Quantity (weight or number of pieces),
straight lengths only.
3.1.2 Dimensions (cross-sectional shape, size, and length),
1.3 Some applications may require one or more of the
3.1.3 Nameofmaterial(merchantqualitycarbonsteelbars),
available designations shown under supplementary require-
3.1.4 Specification number and date of issue,
ments.
3.1.5 Grade designation,
NOTE 1—Special quality hot-wrought carbon steel bars subject to
3.1.6 Copper bearing steel (if required),
3.1.7 Heat analysis or test report (request, if required),
3.1.8 Application and processing, and
This specification is under the jurisdiction of Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.15 on Bars. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2006. Published April 2006. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1972. Last previous edition approved in 2000 as A663/A663M – 89 Standards volume information, refer to the standard’s Document Summary page on
(2000). DOI: 10.1520/A0663_A0663M-89R06. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A663/A663M – 89 (2006)
3.1.9 Supplementary requirements (if required). 6.1.7 For material over ⁄4 in. [19 mm] in thickness or
diameter,adeductionfromthepercentageofelongationin8in.
4. Manufacture
[200mm]specifiedinTable1of0.25%shallbemadeforeach
4.1 The steel shall be made by the open-hearth, basic- increase of ⁄32 in. [0.8 mm] in the specified thickness or
diameter above ⁄4 in. [19 mm].
oxygen, or electric-furnace process.
6.1.8 For material under ⁄16 in. [8 mm] in thickness or
5. Chemical Composition
diameter,adeductionfromthepercentageofelongationin8in.
[200mm]specifiedinTable1of2.00%shallbemadeforeach
5.1 Thesteelshallconformonheatanalysistothefollowing
decrease of ⁄32 in. [0.8 mm] in the specified thickness or
chemical requirements:
diameter below ⁄16 in. [8 mm].
Phosphorus, max, percent 0.04
Sulfur, max, percent 0.05
6.1.9 For material over 2 in. [50 mm] in thickness or
Copper, when copper steel is specified, min, percent 0.20
diameter,adeductionfromthepercentageofelongationin2in.
[50 mm] specified in Table 1 of 1.00 % shall be made for each
5.2 When tension tests are waived in accordance with 6.1.6,
chemistry consistent with the mechanical properties desired 1 in. [25 mm] of specified thickness or diameter or fraction
thereof over 2 in. [50 mm] in thickness or diameter.
shall be applied.
6.2 Number of Tests:
6. Mechanical Properties
6.2.1 Two tension tests shall be made from each heat, unless
the finished material from a heat is less than 50 tons [45 Mg],
6.1 Tensile Requirements:
6.1.1 The material as represented by the test specimen shall when one tension test will be sufficient. However, for material
2 in. [50 mm] and under in thickness, when the material from
conform to the applicable requirements in Table 1.
6.1.2 Test specimens shall be prepared for testing from the one heat differs ⁄8 in. [9.5 mm] or more in thickness, one
material in its as-rolled condition. The tension specimen may tension test shall be made from both the thickest and the
be aged as described in Test Methods and Definitions A370. thinnest material rolled (larger than the sizes enumerated in
6.1.3 Test specimens shall be taken longitudinally and may 6.1.6), regardless of weight represented. For material over 2 in.
be tested in full thickness or section, or they may be machined [50 mm] thick, when the material from one heat differs 1 in.
to the dimensions shown in Figs. 4 or 5 of Test Methods and [25 mm] or more in thickness, one tension test shall be made
from both the thickest and the thinnest material rolled that is
DefinitionsA370. If test specimens are selected conforming to
the dimensions of Fig. 5, they shall be machined from a more than 2 in. [50 mm] thick regardless of the weight
represented.
position midway between the center and the surface of the bar.
6.1.4 Test specimens for shapes and flats may be machined 6.3 Test Reports:
to the form and dimensions shown in Fig. 4 o
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