ASTM A663/A663M-89(2000)
(Specification)Standard Specification for Steel Bars, Carbon, Merchant Quality, Mechanical Properties
Standard Specification for Steel Bars, Carbon, Merchant Quality, Mechanical Properties
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 3.2).
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 in2[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 1--Special quality hot-wrought carbon steel bars subject to mechanical property requirements are covered in Specification A675/A675M.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not 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 663/A 663M – 89 (Reapproved 2000)
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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope independently of the other. Combining values from the two
systems may result in nonconformance with the specification.
1.1 This specification covers hot-wrought merchant quality
carbon steel bars and bar size shapes produced to mechanical
2. Referenced Documents
property requirements and intended for noncritical construc-
2.1 ASTM Standards:
tional applications (see 7.2).
A 29/A 29M Specification for Steel Bars, Carbon and
1.2 Merchant quality hot-wrought steel bar is available in
Alloy, Hot-Wrought and Cold-Finished, General Require-
the following ranges of size and section:
ments for
1.2.1 Rounds, squares, and hexagons with diameters or
A 370 Test Methods and Definitions for MechanicalTesting
distance across flats under 3 in. [75 mm].
of Steel Products
1.2.2 Bar size shapes with maximum dimensions under 3 in.
A 675/A 675M Specification for Steel Bars, Carbon, Hot-
[75 mm].
Wrought, Special Quality, Mechanical Properties
1.2.3 Other bar sections with weight per foot under 40.84
E 290 TestMethodforSemi-GuidedBendTestforDuctility
lb/ft [60.78 kg/m].
of Metallic Materials
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,
3. Ordering Information
2 2
and under 40.84 lb/ft or 12 in. [77.4 cm ] in cross-sectional
3.1 Orders for material under this specification should
area.
include the following information:
1.2.5 Flats over 6 in. to 8 in., inclusive in width, 0.230 in.
3.1.1 Quantity (weight or number of pieces),
and over [over 6 mm in thickness and over 50 mm through 200
3.1.2 Dimensions (cross-sectional shape, size, and length),
mm in width] in thickness and under 40.84 lb/ft [60.78 kg/m]
2 2 3.1.3 Name of material (merchant quality carbon steel bars),
or 12 in. [77.4 cm ] in cross-sectional area.
3.1.4 Specification number and date of issue,
1.2.6 Hot-wrought merchant quality carbon steel bars sub-
3.1.5 Grade designation,
ject to mechanical property requirements are hot wrought in
3.1.6 Copper bearing steel (if required),
straight lengths only.
3.1.7 Heat analysis or test report (request, if required),
1.3 Some applications may require one or more of the
3.1.8 Application and processing, and
available designations shown under supplementary require-
3.1.9 Supplementary requirements (if required).
ments.
4. Manufacture
NOTE 1—Special quality hot-wrought carbon steel bars subject to
mechanical property requirements are covered in Specification A 675/
4.1 The steel shall be made by the open-hearth, basic-
A 675M.
oxygen, or electric-furnace process.
1.4 The values stated in either inch-pound units or SI units
5. Chemical Composition
are to be regarded separately as the standard. Within the text,
the SI units are shown in brackets. The values stated in each
5.1 Thesteelshallconformonheatanalysistothefollowing
system are not equivalents, therefore each system must be used
chemical requirements:
Phosphorus, max, percent 0.04
Sulfur, max, percent 0.05
Copper, when copper steel is specified, min, percent 0.20
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.
Current edition approved Dec. 7, 1989. Published February 1990. Originally Annual Book of ASTM Standards, Vol 01.05.
published as A 663–72 to replace A 306–64(1972). Last previous edition Annual Book of ASTM Standards, Vol 01.03.
e1 4
A 663–88 . Annual Book of ASTM Standards, Vol 03.01.
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A 663/A 663M – 89 (2000)
5.2 When tension tests are waived in accordance with 6.1.6, 6.1.8 For material under ⁄16 in. [8 mm] in thickness or
chemistry consistent with the mechanical properties desired diameter,adeductionfromthepercentageofelongationin8in.
shall be applied. [200mm]specifiedinTable1of2.00percentshallbemadefor
each decrease of ⁄32 in. [0.8 mm] in the specified thickness or
6. Mechanical Properties diameter below ⁄16 in. [8 mm].
6.1.9 For material over 2 in. [50 mm] in thickness or
6.1 Tensile Requirements:
diameter,adeductionfromthepercentageofelongationin2in.
6.1.1 The material as represented by the test specimen shall
[50 mm] specified in Table 1 of 1.00 percent shall be made for
conform to the applicable requirements in Table 1.
each 1 in. [25 mm] of specified thickness or diameter or
6.1.2 Test specimens shall be prepared for testing from the
fraction thereof over 2 in. [50 mm] in thickness or diameter.
material in its as-rolled condition. The tension specimen may
6.2 Number of Tests:
be aged as described in Test Methods and Definitions A 370.
6.2.1 Two tension tests shall be made from each heat, unless
6.1.3 Test specimens shall be taken longitudinally and may
the finished material from a heat is less than 50 tons [45 Mg],
be tested in full thickness or section, or they may be machined
when one tension test will be sufficient. However, for material
to the dimensions shown in Figs. 4 or 5 of Test Methods and
2 in. [50 mm] and under in thickness, when the material from
DefinitionsA 370. If test specimens are selected conforming to
one heat differs ⁄8 in. [9.5 mm] or more in thickness, one
the dimensions of Fig. 5, they shall be machined from a
tension test shall be made from both the thickest and the
position midway between the center and the surface of the bar.
thinnest material rolled (larger than the sizes enumerated in
6.1.4 Test specimens for shapes and flats may be machined
6.1.6), regardless of weight represented. For material over 2 in.
to the form and dimensions shown in Fig. 4 of Test Methods
[50 mm] thick, when the material from one heat differs 1 in.
and Definitions A 370 or with both edges parallel. Test speci-
1 [25 mm] or more in thickness, one tension test shall be made
mens for material over 1 ⁄2 in. [40 mm] in thickness or
from both the thickest and the thinnest material rolled that is
diametermaybemachinedtoathicknessordiameterofatleast
3 more than 2 in. [50 mm] thick regardless of the weight
⁄4 in. [20 mm] for a length of at least 9 in. [230 mm], or they
represented.
may conform to the dimensions shown in
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