ASTM A321-90(2001)

Standard Specification for Steel Bars, Carbon, Quenched and Tempered (Withdrawn 2007)

SCOPE
1.1 This specification covers hot-rolled, quenched, and tempered carbon steel bars, of the following sections and size ranges:
1.1.1 Rounds, 1/4 to 91/ 2 in. (6.35 to 241.3 mm) incl, in diameter.
1.1.2 Squares, 1/4 to 51/ 2 in. (6.35 to 139.7 mm) incl, between parallel surfaces.
1.1.3 Hexagons, 1/4 in. (6.35 mm) and over between parallel surfaces.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
WITHDRAWN RATIONALE
This specification covers hot-rolled, quenched, and tempered carbon steel bars.
Formerly under the jurisdiction of Committee A01 on Steel, Stainless Steel and Related Alloys, this specification was withdrawn without replacement in March 2007 due to lack of use.

General Information

• Status: Withdrawn
• Publication Date: 31-Dec-1994
• Withdrawal Date: 28-Mar-2007
• ICS: 77.140.60 - Steel bars and rods
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.15 - Bars

Relations

• Replaces: ASTM A321-90(1995)e1 - Standard Specification for Steel Bars, Carbon, Quenched and Tempered
• Effective Date: 01-Jan-1995
• Referred By: ASTM A29/A29M-23 - Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
• Effective Date: 01-Jan-1995

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A 321 – 90 (Reapproved 2001)
Standard Specification for
Steel Bars, Carbon, Quenched and Tempered
This standard is issued under the fixed designation A 321; 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.
NOTE 1—A typical ordering description is as follows: 10 000 lb,
1. Scope
hot-rolled bars quenched and tempered, straightened, stress relieved,
1.1 This specification covers hot-rolled, quenched, and tem-
descaled, 1.000 in. diameter by 10 ft long, heat analysis required, ASTM
pered carbon steel bars, of the following sections and size
A 321, dated____.
ranges:
1 1
4. Manufacture
1.1.1 Rounds, ⁄4 to 9 ⁄2 in. (6.35 to 241.3 mm) incl, in
diameter.
4.1 Melting Practice—The steel shall be made by one or
1 1
1.1.2 Squares, ⁄4 to 5 ⁄2 in. (6.35 to 139.7 mm) incl,
more of the following primary processes: open-hearth, basic-
between parallel surfaces.
oxygen, or electric-furnace. The primary melting may incor-
1.1.3 Hexagons, ⁄4 in. (6.35 mm) and over between
porate separate degassing or refining and may be followed by
parallel surfaces.
secondary melting using electroslag remelting or vacuum arc
1.2 The values stated in inch-pound units are to be regarded
remelting. Where secondary melting is employed, the heat
as the standard. The values given in parentheses are for
shall be defined as all of the ingots remelted from a single
information only.
primary heat.
4.2 Discard—Asufficient discard shall be made (from each
2. Referenced Documents
ingot,wheningotcast)tosecurefreedomfrominjuriouspiping
2.1 ASTM Standards:
and undue segregation.
A 29/A29M Specification for Steel Bars, Carbon andAlloy,
4.3 Heat Treatment:
Hot-Wrought and Cold-Finished, General Requirements
4.3.1 Cooling—Immediately after rolling, the bars shall be
for
allowed to cool to a temperature below the critical range under
A 370 Test Methods and Definitions for MechanicalTesting
suitable conditions to prevent injury by too rapid cooling.
of Steel Products
4.3.2 Quenching and Tempering—The material shall be
uniformly heated to the austenitizing temperature, soaked for a
3. Ordering Information
sufficient length of time to produce the desired change in
3.1 Orders for material under this specification should
structure (a group thus heated being known as a “quenching
include the following information:
charge”), and quenched in some medium under substantially
3.1.1 Quantity (weight or number of pieces),
uniform conditions for each quenching charge. The material
3.1.2 Name of material,
shall then be uniformly reheated to the proper temperature for
3.1.3 Stress relief anneal (if required),
tempering (a group thus reheated being known as a “tempering
3.1.4 Finish (specify descaled and oiled if required),
charge”), and allowed to cool uniformly. The temperature
3.1.5 Dimensions (cross sectional shape, size, and length),
selected for tempering shall not be less than 800°F (427°C).
3.1.6 Straightness (if other than standard is required),
4.3.3 Stress Relieving—When it is desirable to minimize
3.1.7 Leaded steel (if required),
internal stresses introduced by straightening, the purchaser
3.1.8 Heat analysis or test report (if required),
may specify a stress relief anneal as a final operation.
3.1.9 ASTM designation and date of issue, and
3.1.10 Additional requirements, if any. 5. Chemical Composition
5.1 Chemical Composition—The steel shall conform to the
requirements for chemical composition specified in Table 1.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
5.2 Leaded Steel—When required, lead may be specified as
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
A01.15 on Bars. an added element. A range from 0.15 to 0.35 %, inclusive, is
Current edition approved Jan. 26, 1990. Published March 1990. Originally
commonly specified. Heat analysis for lead is not determinable
published as A 321 – 49 T. Last previous edition A 321 – 89.
since lead is added to the ladle stream while each ingot is
Annual Book of ASTM Standards, Vol 01.05.
poured.
Annual Book of ASTM Standards, Vol 01.03.
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A 321 – 90 (2001)
TABLE 1 Chemical Requirements (Heat Anal
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