ASTM A648-11

Standard Specification for Steel Wire, Hard Drawn for Prestressing Concrete Pipe

ABSTRACT
This specification covers two classes of uncoated, high-strength, hard-drawn steel wires for use in the manufacture of prestressed concrete pipe. The steel shall be made by the open-hearth, basic-oxygen, or electric-furnace process, and shall be free of injurious piping and undue segregation. The wire shall be cold drawn to produce the desired mechanical properties and there shall be no welds or joints in the finished wire. Cast or heat analysis of the steel shall conform to the chemical requirements specified for carbon, manganese, phosphorus, sulfur, silicon, and nitrogen. The tension and relaxation tests shall conform to the specified tensile requirements including tensile strength and breaking strength. Torsion test shall also be performed where test specimens shall be inspected for primary break shear area and longitudinal (spiral) splitting following completion of the test.
SCOPE
1.1 This specification covers two classes of uncoated, high-strength, hard-drawn steel wire for use in the manufacture of prestressed concrete pipe. In application, the wire is helically wrapped on the pipe maintaining tension by mechanical means not including drawing dies.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 Supplementary requirements describe hydrogen embrittlement resistance test acceptance criteria.
1.4 The following caveat pertains only to the test method portions of this specification, 6.2.3 and 6.4.3: This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Dec-2010
• ICS: 77.140.15 - Steels for reinforcement of concrete
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.05 - Steel Reinforcement

Relations

• Replaces: ASTM A648-04a - Standard Specification for Steel Wire, Hard Drawn for Prestressing Concrete Pipe
• Effective Date: 01-Jan-2011
• Replaced By: ASTM A648-12 - Standard Specification for Steel Wire, Hard-Drawn for Prestressed Concrete Pipe
• Effective Date: 01-Mar-2012
• Referred By: ASTM A1032-15(2019) - Standard Test Method for Hydrogen Embrittlement Resistance for Steel Wire Hard-Drawn Used for Prestressed Concrete Pipe
• Effective Date: 01-Jan-2011

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: A648 – 11
Standard Specification for
1
Steel Wire, Hard Drawn for Prestressing Concrete Pipe
This standard is issued under the fixed designation A648; 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* tance for Steel Wire Hard Drawn Used for Prestressing
Concrete Pipe
1.1 This specification covers two classes of uncoated, high-
E328 Test Methods for Stress Relaxation for Materials and
strength, hard-drawn steel wire for use in the manufacture of
Structures
prestressed concrete pipe. In application, the wire is helically
3
2.2 ANSI Standard:
wrapped on the pipe maintaining tension by mechanical means
C 304 StandardforDesignofPrestressedConcreteCylinder
not including drawing dies.
Pipe
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
3. Ordering Information
conversions to SI units that are provided for information only
3.1 Orders for material to this specification should include
and are not considered standard.
the following information:
1.3 Supplementary requirements describe hydrogen em-
3.1.1 Quantity (weight),
brittlement resistance test acceptance criteria.
3.1.2 Name of material (hard-drawn steel wire for prestress-
1.4 The following caveat pertains only to the test method
ing concrete pipe),
portions of this specification, 6.2.3 and 6.4.3: This standard
3.1.3 Wire diameter (see Table 1),
does not purport to address the safety concerns, if any,
3.1.4 Class (see Table 1),
associated with its use. It is the responsibility of the user of this
3.1.5 Packaging (see Section 11),
standard to establish appropriate safety and health practices
3.1.6 ASTM designation and year of issue, and
and determine the applicability of regulatory limitations prior
3.1.7 Special requirements, if any (see Supplementary Re-
to use.
quirements).
2. Referenced Documents
NOTE 1—A typical ordering description is as follows: 100 000-lb,
2
2.1 ASTM Standards:
Hard-Drawn Steel Wire for Prestressing Concrete Pipe, 0.192 in. in
diameter, Class III, 1500-lb coils, to ASTM A648 – _______.
A370 Test Methods and Definitions for Mechanical Testing
of Steel Products
4. Manufacture
A510 Specification for General Requirements for Wire
4.1 The steel shall be made by the electric-arc furnace,
Rods and Coarse Round Wire, Carbon Steel
open-hearth, basic-oxygen, or process.
A700 PracticesforPackaging,Marking,andLoadingMeth-
4.2 The steel shall be free of injurious piping and undue
ods for Steel Products for Shipment
segregation.
A1032 Test Method for Hydrogen Embrittlement Resis-
4.3 The wire shall be cold drawn to produce the prescribed
mechanical properties. The wire manufacturer shall take de-
pendable precautions during wire drawing to preclude detri-
1
This specification is under the jurisdiction of ASTM CommitteeA01 on Steel,
mental strain aging of the wire.
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.05 on Steel Reinforcement.
NOTE 2—Allowing wire to remain at elevated temperatures, such as
Current edition approved Jan. 1, 2011. Published January 2011. Originally
400°F (204°C) for more than5sor 360°F (182°C) for more than 20 s, can
approved in 1972. Last previous edition approved in 2004 as A648 – 04a. DOI:
result in detrimental strain aging of the wire. Detrimentally strain-aged
10.1520/A0648-11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*ASummary of Changes section appears at the end of this standard.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959, United States.
1

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A648 – 11
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.
TABLE 2 Chemical Requirements
...

This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:A648–04a Designation: A648 – 11
Standard Specification for
1
Steel Wire, Hard Drawn for Prestressing Concrete Pipe
This standard is issued under the fixed designation A648; 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*
1.1 This specification covers two classes of uncoated, high-strength, hard-drawn steel wire for use in the manufacture of
prestressed concrete pipe. In application, the wire is helically wrapped on the pipe maintaining tension by mechanical means not
including drawing dies.
1.2The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for
information only.
1.3Supplementary requirements describe hydrogen embrittlement resistance test acceptance criteria.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.3 Supplementary requirements describe hydrogen embrittlement resistance test acceptance criteria.
1.4 The following caveat pertains only to the test method portions of this specification, 6.2.3 and 6.4.3: This standard does not
purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish
appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A1032 Test Method for Hydrogen Embrittlement Resistance for Steel Wire Hard Drawn Used for Prestressing Concrete Pipe
E328 Test Methods for Stress Relaxation for Materials and Structures
3
2.2 ANSI Standard:
C 304 Standard for Design of Prestressed Concrete Cylinder Pipe
3. Ordering Information
3.1 Orders for material to this specification should include the following information:
3.1.1 Quantity (weight),
3.1.2 Name of material (hard-drawn steel wire for prestressing concrete pipe),
3.1.3 Wire diameter (see Table 1),
3.1.4 Class (see Table 1),
3.1.5 Packaging (see Section 11),
3.1.6 ASTM designation and year of issue, and
3.1.7Special3.1.7 Special requirements, if any (see Supplementary Requirements).
NOTE 1—Atypical ordering description is as follows: 100 000-lb, Hard-Drawn Steel Wire for Prestressing Concrete Pipe, 0.192 in. in diameter, Class
III, 1500-lb coils, to ASTM A648 – _______.
4. Manufacture
4.1 The steel shall be made by the electric-arc furnace, open-hearth, basic-oxygen, or electric-furnace process.
4.2 The steel shall be free of injurious piping and undue segregation.
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.05
on Steel Reinforcement.
Current edition approved Sept.Jan. 1, 2004.2011. Published September 2004.January 2011. Originally approved in 1972. Last previous edition approved in 2004 as
A648 – 04a. DOI: 10.1520/A0648-04A.10.1520/A0648-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*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.
1

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A648 – 11
TABLE 2 1 ChTemnsicale RequirementsNote 1—Class I wire has been discontinued.
Class II Wire Class III Wirbon, %e
Wire Gage or
Des IIcimand IIIl Size, 0.50–0.85Minimum MBreakingan Stresength, % lbf (kN) 0.50–1.10Minimum Breaking Strength, lbf (kN)
Fraction,
A A
in. (mm) Tensile Strength, Tensile Strength,
in.Class Phosphorus,max, 0.030max Sulfur,max, %in 0.035max
ksi (MPa) ksi (MPa)
%in
Silicon, % 0.10–0.35
6 0.19
...