ASTM A648-04

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 648 – 04
Standard Specification for
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Steel Wire, Hard Drawn for Prestressing Concrete Pipe
This standard is issued under the fixed designation A 648; 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.
1. Scope* C 304 StandardforDesignofPrestressedConcreteCylinder
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Pipe
1.1 This specification covers two classes of uncoated, high-
strength, hard-drawn steel wire for use in the manufacture of
3. Ordering Information
prestressed concrete pipe. In application, the wire is helically
3.1 Orders for material to this specification should include
wrapped on the pipe maintaining tension by mechanical means
the following information:
not including drawing dies.
3.1.1 Quantity (weight),
1.2 The values stated in inch-pound units are to be regarded
3.1.2 Name of material (hard-drawn steel wire for prestress-
as the standard. The values given in parentheses are provided
ing concrete pipe),
for information only.
3.1.3 Wire diameter (see Table 1),
1.3 The following caveat pertains only to the test method
3.1.4 Class (see Table 1),
portions of this specification, 6.2.3 and 6.4.3: This standard
3.1.5 Packaging (see Section 12), and
does not purport to address the safety concerns, if any,
3.1.6 ASTM designation and year of issue.
associated with its use. It is the responsibility of the user of this
standard to establish appropriate safety and health practices
NOTE 1—A typical ordering description is as follows: 100 000-lb,
and determine the applicability of regulatory limitations prior Hard-Drawn Steel Wire for Prestressing Concrete Pipe, 0.192 in. in
diameter, Class III, 1500-lb coils, to ASTM A 648 – _______.
to use.
4. Manufacture
2. Referenced Documents
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4.1 The steel shall be made by the open-hearth, basic-
2.1 ASTM Standards:
oxygen, or electric-furnace process.
A 370 Test Methods and Definitions for MechanicalTesting
4.2 The steel shall be free of injurious piping and undue
of Steel Products
segregation.
A 510 Specification for General Requirements for Wire
4.3 The wire shall be cold drawn to produce the desired
Rods and Coarse Round Wire, Carbon Steel
mechanical properties. The wire manufacturer shall take de-
A 700 Practices for Packaging, Marking, and Loading
pendable precautions during wire drawing to preclude detri-
Methods for Steel Products for Domestic Shipment
mental strain aging of the wire.
E 328 Test Methods for Stress Relaxation Tests for Materi-
als and Structures
NOTE 2—Allowing wire to remain at elevated temperatures, such as
2.2 ANSI Standard:
400°F (204°C) for more than5sor 360°F (182°C) for more than 20 s, can
result in detrimental strain aging of the wire. Detrimentally strain aged
wire typically has reduced ductility and increased susceptibility to
hydrogen embrittlement.
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee 4.4 There shall be no welds or joints in the finished wire.
A01.05 on Steel Reinforcement.
Any welds or joints made during manufacture to promote
Current edition approved March 1, 2004. Published April 2004. Originally
continuity of operations shall be removed.
approved in 1972. Last previous edition approved in 1995 as A 648 – 95 (2000).
2
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
3
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute, 25 W. 43rd St., 4th
the ASTM website. Floor, New York, NY 10036.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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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.
A 648–04
TABLE 1 Tensile Requirements
Class II Wire Class III Wire
Wire Gage or Decimal Size,
Minimum Tensile Breaking Strength, lbf (kN) Minimum Tensile Breaking Strength, lbf (kN)
Fraction, in. in. (mm) A A
Strength, Strength,
min max min max
ksi (MPa) ksi (MPa)
6 0.192 (4.88) 222 (1530) 6 430 (28.6) 7 300 (32.5) 252 (1740) 7 300 (32.5) 8 170 (36.3)
1 4 0.250 (6.35) 211 (1450) 10 360 (46.1) 11 830 (52.6) 240 (1650) 11 780 (52.4) 13 250 (58.9)
/
5 16 0.312 (7.92) 201 (1390) 15 370 (68.4) 17 660 (78.6) 221 (1520) 16 900 (75.2) 19 190 (85.4)
/
A
Based on nominal wire diameter.
5.
...