ASTM A648-12

Standard Specification for Steel Wire, Hard-Drawn for Prestressed 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 A supplementary requirement (S1) is provided for use where hydrogen embrittlement (HE) resistance testing is required by the purchaser. Supplementary requirement (S1), which establishes acceptance criteria for HE resistance testing, applies only when specified in the purchase order or contract.
1.4 The following caveat pertains only to the test method portions of this specification, 6.3.3 and 6.5.3: This specification does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this specification to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 29-Feb-2012
• 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 A648-11 - Standard Specification for Steel Wire, Hard Drawn for Prestressing Concrete Pipe
• Effective Date: 01-Mar-2012
• Replaced By: ASTM A648-18 - Standard Specification for Steel Wire, Hard-Drawn for Prestressed Concrete Pipe
• Effective Date: 01-Mar-2018
• 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-Mar-2012

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 −12
Standard Specification for
1
Steel Wire, Hard-Drawn for Prestressed 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* A510 Specification for General Requirements forWire Rods
and Coarse Round Wire, Carbon Steel
1.1 This specification covers two classes of uncoated, high-
A700 Guide for Packaging, Marking, and Loading Methods
strength, hard-drawn steel wire for use in the manufacture of
for Steel Products for Shipment
prestressed concrete pipe. In application, the wire is helically
A1032 Test Method for Hydrogen Embrittlement Resistance
wrapped on the pipe maintaining tension by mechanical means
for Steel Wire Hard-Drawn Used for Prestressed Concrete
not including drawing dies.
Pipe
1.2 The values stated in inch-pound units are to be regarded
E328 Test Methods for Stress Relaxation for Materials and
as standard. The values given in parentheses are mathematical
Structures
conversions to SI units that are provided for information only 3
2.2 ANSI Standard:
and are not considered standard.
C 304 Standard for Design of Prestressed Concrete Cylinder
1.3 A supplementary requirement (S1) is provided for use Pipe
where hydrogen embrittlement (HE) resistance testing is re-
3. Ordering Information
quired by the purchaser. Supplementary requirement (S1),
which establishes acceptance criteria for HE resistance testing,
3.1 It shall be the responsibility of the purchaser to specify
applies only when specified in the purchase order or contract.
all requirements that are necessary for material under this
specification. Such requirements to be considered include, but
1.4 The following caveat pertains only to the test method
are not limited to, the following:
portions of this specification, 6.3.3 and 6.5.3: This standard
3.1.1 Quantity (weight),
does not purport to address all of the safety concerns, if any,
3.1.2 Name of material (hard-drawn steel wire for pre-
associatedwithitsuse.Itistheresponsibilityoftheuserofthis
stressed concrete pipe),
standard to establish appropriate safety, health, and environ-
3.1.3 Wire diameter (see Table 1),
mental practices and determine the applicability of regulatory
3.1.4 Class (see Table 1),
limitations prior to use.
3.1.5 If outside inspection is required (9.1),
1.5 This international standard was developed in accor-
3.1.6 Packaging (see Section 12),
dance with internationally recognized principles on standard-
3.1.7 Supplementary Requirement S1 (if desired), and
ization established in the Decision on Principles for the
3.1.8 ASTM designation and year of issue.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4. Manufacture
Barriers to Trade (TBT) Committee.
4.1 The steel shall be made by the electric-arc furnace,
2. Referenced Documents
open-hearth, or basic-oxygen process.
2
2.1 ASTM Standards:
4.2 The steel shall be free of injurious piping and undue
A370 Test Methods and Definitions for Mechanical Testing
segregation.
of Steel Products
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 ofASTM Committee A01 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 1—Allowing wire to remain at elevated temperatures, such as
Current edition approved March 1, 2012. Published April 2012. 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 2011 as A648 – 11. DOI:
result in detrimental strain aging of the wire. Detrimentally strain-aged
10.1520/A0648-12.
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.
*A Summary 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

---------------------- Page: 1 ----------------------
A648−12
TABLE 1 Tensile Requirements
Class II Wire Class III Wire
Wire Gage or Decimal Size,
Minimum Tensile Br
...

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:A648–11 Designation: A648 – 12
Standard Specification for
Steel Wire, Hard Drawn for Prestressing Concrete PipeSteel
1
Wire, Hard-Drawn for Prestressed 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.
1.2 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.
1.3Supplementary requirements describe hydrogen embrittlement resistance test acceptance criteria.
1.3 Asupplementary requirement (S1) is provided for use where hydrogen embrittlement (HE) resistance testing is required by
the purchaser. Supplementary requirement (S1), which establishes acceptance criteria for HE resistance testing, applies only when
specified in the purchase order or contract.
1.4 The following caveat pertains only to the test method portions of this specification, 6.2.3 6.3.3 and 6.4.36.5.3: This
standardspecification does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the
user of this standardspecification 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
3.1Orders for material to this specification should include the following information:
3.1 It shall be the responsibility of the purchaser to specify all requirements that are necessary for material under this
specification. Such requirements to be considered include, but are not limited to, the following:
3.1.1 Quantity (weight),
3.1.2 Name of material (hard-drawn steel wire for prestressingprestressed concrete pipe),
3.1.3 Wire diameter (see Table 1),
3.1.4 Class (see Table 1),
3.1.5Packaging (see Section 11
3.1.5 If outside inspection is required (9.1),
3.1.6ASTM designation and year of issue, and
3.1.7Special requirements, if any (see Supplementary Requirements).
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 Jan.March 1, 2011.2012. Published January 2011.April 2012. Originally approved in 1972. Last previous edition approved in 20042011 as
A648–04a.A648 – 11. DOI: 10.1520/A0648-112.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book of ASTM 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.
*A Summary 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

---------------------- Page: 1 ----------------------
A648 – 12
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) 1
...