ASTM A1064/A1064M-24

Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete

ABSTRACT
This specification covers the material, dimensional and mechanical property requirements for plain and deformed steel wire and welded wire reinforcements produced from hot-rolled rods that are to be used for the reinforcement of concrete. Tension test procedures are detailed for each type of wire reinforcement to examine their adherence to specified tensile strength, yield strength, and reduction of area requirements.
SCOPE
1.1 This specification covers carbon-steel wire and welded wire reinforcement produced from hot-rolled rod to be used for the reinforcement of concrete. The steel wire is cold-worked, drawn or rolled, plain (non-deformed, as-drawn or galvanized), or deformed. Welded wire reinforcement is made from plain or deformed wire, or a combination of plain and deformed wire. Common wire sizes and dimensions are given in Table 1, Table 2, Table 3, and Table 4. Actual wire sizes are not restricted to those shown in the tables.    
Note 1: Welded wire for concrete reinforcement has historically been described by various terms: welded wire fabric, WWF, fabric, and mesh. The wire reinforcement industry has adopted the term welded wire reinforcement (WWR) as being more representative of the applications of the products being manufactured. Therefore, the term welded wire fabric has been replaced with the term welded wire reinforcement in this specification and in related specifications.  
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text the SI units are shown in brackets (except in Table 2 and Table 4). The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with this specification.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 14-Apr-2024
• 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 A1064/A1064M-22 - Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete
• Effective Date: 15-Apr-2024
• Referred By: ASTM C1433M-22 - Standard Specification for Precast Reinforced Concrete Monolithic Box Sections for Culverts, Storm Drains, and Sewers (Metric)
• Effective Date: 15-Apr-2024
• Referred By: ASTM C361-22 - Standard Specification for Reinforced Concrete Low-Head Pressure Pipe
• Effective Date: 15-Apr-2024
• Referred By: ASTM C507M-22 - Standard Specification for Reinforced Concrete Elliptical Culvert, Storm Drain, and Sewer Pipe (Metric)
• Effective Date: 15-Apr-2024
• Referred By: ASTM A951/A951M-22 - Standard Specification for Steel Wire for Masonry Joint Reinforcement
• Effective Date: 15-Apr-2024
• Referred By: ASTM C1089-19 - Standard Specification for Spun Cast Prestressed Concrete Poles
• Effective Date: 15-Apr-2024
• Referred By: ASTM C478/C478M-22 - Standard Specification for Circular Precast Reinforced Concrete Manhole Sections
• Effective Date: 15-Apr-2024
• Referred By: ASTM C655-19a - Standard Specification for Reinforced Concrete D-Load Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 15-Apr-2024
• Referred By: ASTM C1613-24 - Standard Specification for Precast Concrete Gravity Grease Interceptor Tanks
• Effective Date: 15-Apr-2024
• Referred By: ASTM C1776/C1776M-17(2022) - Standard Specification for Wet-Cast Precast Modular Retaining Wall Units
• Effective Date: 15-Apr-2024
• Referred By: ASTM C1932-23 - Standard Specification for Manufacture of Reinforced Precast Concrete End Sections for Pipe
• Effective Date: 15-Apr-2024
• Referred By: ASTM C1804-20 - Standard Specification for Spun Cast Prestressed Concrete Bases for Tapered Steel Lighting Poles
• Effective Date: 15-Apr-2024
• Referred By: ASTM C76-22a - Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 15-Apr-2024
• Referred By: ASTM C825-19 - Standard Specification for Precast Concrete Barriers
• Effective Date: 15-Apr-2024
• Referred By: ASTM C506-22a - Standard Specification for Reinforced Concrete Arch Culvert, Storm Drain, and Sewer Pipe
• Effective Date: 15-Apr-2024

Overview

ASTM A1064/A1064M-24 is the international standard specification for carbon-steel wire and welded wire reinforcement, both plain and deformed, intended for use in concrete reinforcement. Developed by ASTM International, this standard outlines the material, dimensional, and mechanical property requirements for steel reinforcement products manufactured from hot-rolled rods. Welded wire reinforcement (WWR), formerly known as welded wire fabric or mesh, is a critical component in the construction industry, ensuring reliable performance and strength within concrete structures.

ASTM A1064 provides detailed criteria for tension testing, dimensional tolerances, bend tests, and weld shear testing, ensuring that reinforced concrete structures meet stringent safety and performance requirements. Compliance with this standard supports quality assurance, international interoperability, and supports regulatory compliance in infrastructure projects globally.

Key Topics

• Product Scope: Covers cold-worked, drawn or rolled carbon-steel wire-plain (either as-drawn or galvanized) or deformed-and welded wire reinforcement manufactured from these wires. Both inch-pound and SI units are addressed as separate standards.
• Types of Reinforcement:
  • Plain Wire: Steel wire without surface deformations, available as-drawn or hot-dip galvanized.
  • Deformed Wire: Steel wire with physical deformations (indentations or ribs) to enhance mechanical bonding with concrete.
  • Welded Wire Reinforcement (WWR): Assembled from plain or deformed wires joined by electrical resistance welding at each intersection.
• Mechanical Properties: Specifies minimum requirements for tensile strength, yield strength, and reduction of area, tested in accordance with ASTM A370.
• Dimensional Requirements: Stipulates nominal diameters, cross-sectional areas, weight tolerances, and permissible variations for both plain and deformed wire sizes.
• Weld Quality: Includes weld shear strength testing to ensure bond and anchorage integrity.
• Testing and Certification: Details the sampling, testing frequency, and acceptance criteria, including provisions for certification of conformance and retest options.

Applications

ASTM A1064/A1064M-24 is widely used in construction projects where reinforced concrete is essential. Typical applications include:

• Structural Slabs and Foundations: WWR provides uniform reinforcement for concrete floors, pavements, and ground slabs.
• Precast Concrete Elements: Panels, pipes, and barriers rely on welded wire reinforcement for structural performance.
• Highway and Bridge Projects: Reinforced concrete pavements and bridge decks use these materials for enhanced durability and crack control.
• Walls and Columns: Vital for improving load distribution and reducing risk of structural failure in vertical elements.
• Masonry Reinforcement: Supplies extra tensile strength within concrete masonry walls.

Compliance with ASTM A1064 supports durability, reduces construction time, and promotes consistent quality in reinforced concrete structures. The standard’s dual-unit approach ensures suitability for projects in regions using either metric or imperial measurement systems.

Related Standards

• ASTM A370: Test Methods and Definitions for Mechanical Testing of Steel Products. Specifies testing procedures referenced by ASTM A1064.
• ASTM A641/A641M: Specification for Zinc–Coated (Galvanized) Carbon Steel Wire, referenced for galvanized wire options.
• ACI 318: Building Code Requirements for Structural Concrete, which often references ASTM A1064-compliant steel products for reinforced concrete design.
• MIL-STD-129 & Fed. Std. No. 123: Marking for shipments and storage, relevant to logistical aspects of steel reinforcement.
• ASTM A185, A497 (superseded): Previous standards replaced by or incorporated into A1064.

Keywords: ASTM A1064, welded wire reinforcement, WWR, carbon-steel wire, deformed wire, plain wire, concrete reinforcement, steel standards, A1064/A1064M-24.

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: A1064/A1064M − 24
Standard Specification for
Carbon-Steel Wire and Welded Wire Reinforcement, Plain
and Deformed, for Concrete
This standard is issued under the fixed designation A1064/A1064M; 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* 2. Referenced Documents
2.1 ASTM Standards:
1.1 This specification covers carbon-steel wire and welded
A370 Test Methods and Definitions for Mechanical Testing
wire reinforcement produced from hot-rolled rod to be used for
of Steel Products
the reinforcement of concrete. The steel wire is cold-worked,
A641/A641M Specification for Zinc–Coated (Galvanized)
drawn or rolled, plain (non-deformed, as-drawn or galvanized),
Carbon Steel Wire
or deformed. Welded wire reinforcement is made from plain or
deformed wire, or a combination of plain and deformed wire. 2.2 U.S. Military Standard:
Common wire sizes and dimensions are given in Table 1, Table
MIL-STD-129 Marking for Shipment and Storage
2, Table 3, and Table 4. Actual wire sizes are not restricted to
2.3 U.S. Military Standard:
those shown in the tables.
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
2.4 American Concrete Institute (ACI) Standard:
NOTE 1—Welded wire for concrete reinforcement has historically been
described by various terms: welded wire fabric, WWF, fabric, and mesh. ACI 318 Building Code Requirements for Structural Con-
The wire reinforcement industry has adopted the term welded wire
crete
reinforcement (WWR) as being more representative of the applications of
2.5 Adjuncts:
the products being manufactured. Therefore, the term welded wire fabric
Weld Tester Drawing
has been replaced with the term welded wire reinforcement in this
specification and in related specifications.
3. Terminology
1.2 The values stated in either inch-pound units or SI units
3.1 Definitions of Terms Specific to This Specification:
are to be regarded separately as standard. Within the text the SI
3.1.1 convoluted wire, n—plain wire for welded wire rein-
units are shown in brackets (except in Table 2 and Table 4).
forcement that is formed into a sinusoidal wave shape; de-
The values stated in each system may not be exact equivalents;
formed wire is not subject to convolution unless agreed upon
therefore, each system shall be used independently of the other.
by the purchaser and manufacturer.
Combining values from the two systems may result in non-
3.1.1.1 Discussion—The wire is used in the manufacture of
conformance with this specification.
cages for certain applications of concrete pipe reinforcement.
1.3 This standard does not purport to address all of the
3.1.2 deformed wire and deformed welded wire
safety concerns, if any, associated with its use. It is the
reinforcement, n—a material composed of cold-worked de-
responsibility of the user of this standard to establish appro-
formed steel wire as cold-drawn or cold-rolled from hot-rolled
priate safety, health, and environmental practices and deter-
steel rod.
mine the applicability of regulatory limitations prior to use.
3.1.2.1 Discussion—Deformations can be either indented or
1.4 This international standard was developed in accor-
raised transverse ribs (protrusions). The deformations and the
dance with internationally recognized principles on standard-
welded intersections provide bond strength and anchorage.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Barriers to Trade (TBT) Committee.
contact ASTM 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.
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee www.dodssp.daps.mil.
A01.05 on Steel Reinforcement. Available from American Concrete Institute (ACI), P.O. Box 9094, Farmington
Current edition approved April 15, 2024. Published April 2024. Originally Hills, MI 48333-9094, http://www.concrete.org.
approved in 2009. Last previous edition approved in 2022 as A1064/A1064M – 22. Available from ASTM International Headquarters. Order Adjunct No.
DOI: 10.1520/A1064_A1064M-24. ADJA0185. Original adjunct produced in 1967.
*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
A1064/A1064M − 24
A
TABLE 1 Dimensional Requirements for Plain Wire—Inch-Pound Units
Nominal Diameter Nominal Area
B, C, D
Size Number
E 2 2
in. [mm] in. [mm ]
W 0.5 0.080 [2.03] 0.005 [3.23]
W 1.2 0.124 [3.14] 0.012 [7.74]
W 1.4 0.134 [3.39] 0.014 [9.03]
W 2 0.160 [4.05] 0.020 [12.9]
W 2.5 0.178 [4.53] 0.025 [16.1]
W 2.9 0.192 [4.88] 0.029 [18.7]
W 3.5 0.211 [5.36] 0.035 [22.6]
W 4 0.226 [5.73] 0.040 [25.8]
W 4.5 0.239 [6.08] 0.045 [29.0]
W 5 0.252 [6.41] 0.050 [32.3]
W 5.5 0.265 [6.72] 0.055 [35.5]
W 6 0.276 [7.02] 0.060 [38.7]
W 8 0.319 [8.11] 0.080 [51.6]
W 10 0.357 [9.06] 0.100 [64.5]
W 11 0.374 [9.50] 0.110 [71.0]
W 12 0.391 [9.93] 0.120 [77.4]
W 14 0.422 [10.7] 0.140 [90.3]
W 16 0.451 [11.5] 0.160 [103]
W 18 0.479 [12.2] 0.180 [116]
W 20 0.505 [12.8] 0.200 [129]
W 22 0.529 [13.4] 0.220 [142]
W 24 0.553 [14.0] 0.240 [155]
W 26 0.575 [14.6] 0.260 [168]
W 28 0.597 [15.2] 0.280 [181]
W 30 0.618 [15.7] 0.300 [194]
W 31 0.628 [16.0] 0.310 [200]
W 45 0.757 [19.2] 0.450 [290]
A
Table 1 should be used on projects that are designed using inch-pound units; Table 2 should be used on projects that are designed using SI units.
B
The number following the prefix indicates the nominal cross-sectional area of the wire in square inches multiplied by 100.
C
For sizes other than those shown above, the Size Number shall be the number of one hundredth of a square inch in the nominal area of the wire cross section, prefixed
by the W.
D
These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufactures can produce
them in 0.0015 in. increments.
E
The nominal diameter is based on the nominal area of the wire.
A
TABLE 2 Dimensional Requirements for Plain Wire—SI Units
Nominal Diameter Nominal Area
B, C, D
Size Number
E 2 2
mm [in.] mm [in. ]
MW 5 2.52 [0.099] 5 [0.008]
MW 10 3.57 [0.140] 10 [0.016]
MW 15 4.37 [0.172] 15 [0.023]
MW 20 5.05 [0.199] 20 [0.031]
MW 25 5.64 [0.222] 25 [0.039]
MW 30 6.18 [0.243] 30 [0.047]
MW 35 6.68 [0.263] 35 [0.054]
MW 40 7.14 [0.281] 40 [0.062]
MW 45 7.57 [0.298] 45 [0.070]
MW 50 7.98 [0.314] 50 [0.078]
MW 55 8.37 [0.329] 55 [0.085]
MW 60 8.74 [0.344] 60 [0.093]
MW 65 9.10 [0.358] 65 [0.101]
MW 70 9.44 [0.372] 70 [0.109]
MW 80 10.1 [0.397] 80 [0.124]
MW 90 10.7 [0.421] 90 [0.140]
MW 100 11.3 [0.444] 100 [0.155]
MW 120 12.4 [0.487] 120 [0.186]
MW 130 12.9 [0.507] 130 [0.202]
MW 200 16.0 [0.628] 200 [0.310]
MW 290 19.2 [0.757] 290 [0.450]
A
The wire sizes in Table 1 should be used on projects that are designed using inch-pound units; the wire sizes in Table 2 should be used on projects that are designed
using SI units.
B
The number following the prefix indicates the nominal cross-sectional area of the wire in square milimetres.
C
For sizes other than those shown above, the Size Number shall be the number of square millimetres in the nominal area of the wire cross section, prefixed by the MW.
D
These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufactures can produce
them in 1 mm increments.
E
The nominal diameter is based on the nominal area of the wire.
A1064/A1064M − 24
TABLE 3 Dimensional Requirements for Deformed Wire—Inch-Pound Units
Nominal Dimensions Deformation Requirements
Minimum Average Height of
A, B, C, D E 2 F
Deformed Wire Size Unit Weight, lb/ft Diameter, in. Cross-Sectional Area, in.
G, H
Deformations, in.
D 1 0.034 0.113 0.010 0.0045
D 2 0.068 0.160 0.020 0.0063
D 3 0.102 0.195 0.030 0.0078
D 4 0.136 0.226 0.040 0.0101
D 5 0.170 0.252 0.050 0.0113
D 6 0.204 0.276 0.060 0.0124
D 7 0.238 0.299 0.070 0.0134
D 8 0.272 0.319 0.080 0.0143
D 9 0.306 0.339 0.090 0.0152
D 10 0.340 0.357 0.100 0.0160
D 11 0.374 0.374 0.110 0.0187
D 12 0.408 0.391 0.120 0.0195
D 13 0.442 0.407 0.130 0.0203
D 14 0.476 0.422 0.140 0.0211
D 15 0.510 0.437 0.150 0.0218
D 16 0.544 0.451 0.160 0.0225
D 17 0.578 0.465 0.170 0.0232
D 18 0.612 0.479 0.180 0.0239
D 19 0.646 0.492 0.190 0.0245
D 20 0.680 0.505 0.200 0.0252
D 21 0.714 0.517 0.210 0.0259
D 22 0.748 0.529 0.220 0.0265
D 23 0.782 0.541 0.230 0.0271
D 24 0.816 0.553 0.240 0.0277
D 25 0.850 0.564 0.250 0.0282
D 26 0.884 0.575 0.260 0.0288
D 27 0.918 0.586 0.270 0.0293
D 28 0.952 0.597 0.280 0.0299
D 29 0.986 0.608 0.290 0.0304
D 30 1.02 0.618 0.300 0.0309
D 31 1.05 0.628 0.310 0.0314
D 45 1.53 0.757 0.450 0.0379
A
The wire sizes in Table 3 should be used on projects that are designed using inch-pound units; the wire sizes in Table 4 should be used on projects that are designed
using SI units.
B
The number following the prefix indicates the nominal cross-sectional area of the deformed wire in square inches multiplied by 100.
C
For sizes other than those shown above, the Size Number shall be the number of one hundredths of a square inch in the nominal area of the deformed wire cross section,
prefixed by the D.
D
These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufacturers can produce
them in 0.0015 in. increments.
E
The nominal diameter of a deformed wire is equivalent to the nominal diameter of a plain wire having the same weight per foot as the deformed wire.
F 3
The cross-sectional area is based on the weight of the wire. The area in square inches may be calculated by dividing the weight in pounds by 0.2833 (weight of 1 in.
of steel) or by dividing the weight per lineal foot of specimen in pounds by 3.4 (weight of steel 1 in. square and 1 foot long).
G
Measurements shall be made as described in 7.2.4.7.
H
See 7.2.4.3 for average number of deformations per unit length.
3.1.3 plain wire and plain welded wire reinforcement, n—a 4.2 The purchaser shall have the option to specify additional
material composed of cold-worked plain steel wire, as cold- requirements, including but not limited to, the following:
drawn or cold-rolled from hot-rolled steel rod. 4.2.1 Exclusion of over-steeling (see 10.4.2 and 10.5.1),
3.1.3.1 Discussion—The welded intersections provide an-
4.2.2 Report on tests performed on the steel wire or welded
chorage. wire reinforcement being furnished (see 14.1), and
4.2.3 Special requirements (if desired).
4. Ordering Information
5. Materials
4.1 Orders for wire or welded wire reinforcement under this
specification shall contain the following information:
5.1 The steel shall be made by any commercially accepted
4.1.1 Quantity (weight [mass]) or square area for welded
process.
wire reinforcement,
5.2 Unless otherwise specified, the wire shall be supplied
4.1.2 Name of material (cold-drawn or rolled steel wire, or
uncoated. When plain wire is specified as galvanized, it shall
welded wire reinforcement, plain or deformed, for concrete),
be galvanized at finish size as described in Specification
4.1.3 Wire size number, wire spacing, and sheet or roll
A641/A641M.
width and length for welded wire reinforcement,
4.1.4 Minimum yield strength or Grade, 5.3 Wire used in the manufacture of welded wire reinforce-
4.1.5 Packaging (see Section 15), and ment shall conform to this specification either solely plain or
4.1.6 ASTM designation and year of issue. solely deformed, or a combination of both.
A1064/A1064M − 24
TABLE 4 Dimensional Requirements for Deformed Wire—SI Units
Nominal Dimensions Deformation Requirements
Cross-Sectional Area, Minimum Average Height of
A, B, C, D 2 E
Deformed Wire Size D [in. × 100] Unit Mass, kg/m Diameter, mm
2 F G, H
mm Deformations, mm
MD 25 [D 3.9] 0.196 5.64 25 0.252
MD 30 [D 4.7] 0.235 6.18 30 0.279
MD 35 [D 5.4] 0.275 6.68 35 0.302
MD 40 [D 6.2] 0.314 7.14 40 0.320
MD 45 [D 7.0] 0.353 7.57 45 0.342
MD 50 [D 7.8] 0.392 7.98 50 0.360
MD 55 [D 8.5] 0.432 8.37 55 0.378
MD 60 [D 9.3] 0.471 8.74 60 0.392
MD 65 [D 10.1] 0.510 9.10 65 0.455
MD 70 [D 10.9] 0.549 9.44 70 0.470
MD 80 [D 12.4] 0.628 10.1 80 0.505
MD 90 [D 14.0] 0.706 10.7 90 0.535
MD 100 [D 15.5] 0.785 11.3 100 0.565
MD 120 [D 18.6] 0.942 12.4 120 0.620
MD 130 [D 20.2] 1.02 12.9 130 0.645
MD 200 [D 31.0] 1.57 16.0 200 0.800
MD 290 [D 45.0] 2.28 19.2 290 0.961
A
The wire sizes in Table 3 should be used on projects that are designed using inch-pound units; the wire sizes in Table 4 should be used on projects that are designed
using SI units.
B
The number following the prefix indicates the nominal cross-sectional area of the deformed wire in square millimetres.
C
For sizes other than those shown above, the Size Number shall be the number of square millimetres in the nominal area of the deformed wire cross section, prefixed
by the MD.
D
These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufacturers can produce
them in 1 mm increments.
E
The nominal diameter of a deformed wire is equivalent to the nominal diameter of a plain wire having the same weight per metre as the deformed wire.
F -6
The cross-sectional area is based on the mass of the wire. The area in square millimetres may be calculated by dividing the unit mass in kg/mm by 7.849 × 10 (mass
of 1 mm of steel) or by dividing the unit mass in kg/m by 0.007849 (mass of steel 1 mm square and 1 m long).
G
Measurements shall be made as described in 7.2.4.7.
H
See 7.2.4.3 for average number of deformations per unit length.
6. Manufacture 7.1.2 Specimens for mechanical properties testing shall be
full wire sections and shall be obtained from ends of wire coils
6.1 The wire shall be cold-worked, drawn or rolled, from
as drawn or rolled. The specimens shall be of sufficient length
rods that have been hot-rolled from billets.
to perform testing described in Test Methods and Definitions
6.2 For welded wire reinforcement, the wires shall be
A370.
assembled by automatic machines or by other suitable me-
7.1.3 If any test specimen exhibits obvious isolated imper-
chanical means which will assure accurate spacing and align-
fections not representative of the product, it shall be discarded
ment of all wires of the finished product. The finished welded
and another specimen substituted.
wire reinforcement shall be furnished in flat or bent sheets or
in rolls as specified by the purchaser. 7.1.4 Tension Test:
7.1.4.1 Plain wire to be used in the manufacture of welded
6.3 Longitudinal and transverse wires shall be securely
wire reinforcement shall meet or exceed minimum tensile
connected at every intersection by a process of electrical
resistance welding which employs the principle of fusion strength, yield strength, and reduction of area requirements in
combined with pressure. Table 5. Plain wire not used in welded wire reinforcement shall
meet or exceed minimum tensile strength, yield strength, and
6.4 Welded wire reinforcement of proper yield strength and
reduction of area requirements in Table 6. Testing shall follow
quality when manufactured in the manner herein required shall
Test Methods and Definitions A370 and shall be based on
result in a strong, serviceable mat-type product having sub-
nominal wire area.
stantially square or rectangular openings, and shall conform to
this specification.
7.1.4.2 Yield strength shall be determined and reported
according to the certification criteria in 14.3 and Test Methods
NOTE 2—A variation of manufacturing includes the application of one
and Definitions A370 at an extension under load of 0.5 % of
or more longitudinal convoluted wires at one edge of welded wire
reinforcement for concrete pipe reinforcing cages. This shape allows the gauge length or by the offset method (0.2 %). It shall be
cage ends to be expanded to a larger diameter to accommodate the
permissible to remove the extensometer after the yield strength
bell-shaped ends of concrete pipe.
has been determined. The wire shall meet the requirements of
Table 6 or Table 5, whichever is applicable.
7. Mechanical Property Requirements—Wire, Plain and
Deformed
7.1.5 Bend Test—The bend test specimen shall be bent at
room temperature through 180° without cracking on the
7.1 General Requirements for Plain Wire:
outside of the bent portion visible to a person with normal or
7.1.1 The relation between size number, diameter, and area
corrected vision, as prescribed in Table 7.
shown in Table 1 or Table 2 shall apply, whichever is
applicable.
A1064/A1064M − 24
TABLE 5 Tension Test Requirements—Plain Wire for Welded Wire Reinforcement
Size W1.2 [MW 7.7] and Larger
Grade 65 [450] Grade 70 [485] Grade 72.5 [500] Grade 75 [515] Grade 77.5 [533] Grade 80 [550]
Tensile strength, min, psi [MPa] 75 000 [515] 80 000 [550] 82 500 [568] 85 000 [585] 87 500 [603] 90 000 [620]
Yield strength, min, psi [MPa] 65 000 [450] 70 000 [485] 72 500 [500] 75 000 [515] 77 500 [533] 80 000 [550]
A A A A A A
Reduction of area, min, % 30 30 30 30 30 30
Smaller than Size W1.2 [MW 7.7]
Grade 56 [385]
Tensile strength, min, psi [MPa] 70 000 [485]
Yield strength, min, psi [MPa] 56 000 [385]
A
Reduction of area, min, % 30
A
For material testing over 100 000 psi [690 MPa] tensile strength, the reduction of area shall be not less than 25 %.
TABLE 6 Tension Test Requirements—Plain Wire
Grade 70 [485] Grade 72.5 [500] Grade 75 [515] Grade 77.5 [533] Grade 80 [550]
Tensile strength, min, psi [MPa] 80 000 [550] 82 500 [568] 85 000 [585] 87 500 [603] 90 000 [620]
Yield strength, min, psi [MPa] 70 000 [485] 72 500 [500] 75 000 [515] 77 500 [533] 80 000 [550]
A A A A A
Reduction of area, min, % 30 30 30 30 30
A
For material testing over 100 000 psi [690 MPa] tensile strength, the reduction of area shall be not less than 25 %.
TABLE 7 Bend Test Requirements—Plain Wire
A
Size Number of Wire Pin Diameter for Bend Tests
B
W 7 [MW 45] and smaller 1d
Larger than W 7 MW 45] 2d
A
Bend specimen 180° unless noted otherwise.
B
d = nominal wire diameter.
TABLE 8 Permissible Variation in Plain Wire Diameter
Maximum
Size Number, Nominal Diameter Permissible Variation
Permissible
in.-lbs [SI] in. [mm] Plus and Minus, in. [mm]
A
Out-of-Round, in. [mm]
Smaller than W 5 [MW 32] under 0.252 [6.40] 0.003 [0.08] 0.003 [0.08]
W 5 [MW 32] to W 12 [MW 77], incl 0.252 [6.40] to 0.391 [9.93] incl 0.004 [0.10] 0.004 [0.10]
Over W 12 [MW 77] to W 20 [MW 129], incl over 0.391 [9.93] to 0.505 [12.83], incl 0.006 [0.15] 0.006 [0.15]
Over W 20 [MW 129] over 0.505 [12.83] 0.008 [0.20] 0.008 [0.20]
A
Out-of-round is the difference between maximum and minimum diameters of the wire, measured at the same transverse cross section.
7.1.6 Permissible Variation in Wire Diameter: 7.2.3 If any test specimen exhibits obvious isolated imper-
7.1.6.1 The permissible variation in wire diameter shall fections not representative of the product, it shall be discarded
conform to the requirements in Table 8. and another specimen substituted.
7.1.6.2 The difference between the maximum and minimum
7.2.4 Deformation Criteria:
diameters, as measured on any given cross section of the wire,
7.2.4.1 Deformations shall be spaced along the wire at a
shall not exceed the tolerances listed in Table 8 for the given
substantially uniform distance and shall be symmetrically
wire size.
dispersed around the perimeter. The deformations on all
longitudinal lines of the wire shall be similar in size and shape.
NOTE 3—Cold-worked wire generally does not exhibit a definite yield
A minimum of 25 % of the total surface area shall be deformed
point as evidenced by a distinct arrest or halt in the load indication gauge
of the testing machine prior to reaching ultimate tensile load.
by measurable deformations.
7.2.4.2 Deformed wire shall have two or more lines of
7.2 General Requirements for Deformed Wire:
deformations.
7.2.1 The relation between size number, diameter, and area
shown in Table 3 or Table 4 shall apply, whichever is 7.2.4.3 The average longitudinal spacing of deformations
shall be not less than 3.5 nor more than 5.5 deformations per
applicable.
7.2.2 Specimens for mechanical properties testing shall be inch [25 mm] in each line of deformations on the wire.
full wire sections and shall be obtained from ends of wire coils 7.2.4.4 The minimum average height of the center of typical
as rolled. The specimens shall be of sufficient length to perform deformations based on the nominal wire diameters shown in
testing described in Test Methods and Definitions A370. Table 3 or Table 4 shall be as follows:
A1064/A1064M − 24
TABLE 9 Tension Test Requirements—Deformed Wire
Grade 75 [515] Grade 77.5 [533] Grade 80 [550]
Tensile strength, min, psi [MPa] 85 000 [585] 87 500 [603] 90 000 [620]
Yield strength, min, psi [MPa] 75 000 [515] 77 500 [533] 80 000 [550]
TABLE 10 Tension Test Requirements—Deformed Wire for Welded Wire Reinforcement
Grade 70 [485] Grade 72.5 [500] Grade 75 [515] Grade 77.5 [533] Grade 80 [550]
Tensile strength, min, psi [MPa] 80 000 [550] 82 500 [568] 85 000 [585] 87 500 [603] 90 000 [620]
Yield strength, min, psi [MPa] 70 000 [485] 72 500 [500] 75 000 [515] 77 500 [533] 80 000 [550]
TABLE 11 Bend Test Requirements—Deformed Wire
gauge len
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM 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: A1064/A1064M − 22 A1064/A1064M − 24
Standard Specification for
Carbon-Steel Wire and Welded Wire Reinforcement, Plain
and Deformed, for Concrete
This standard is issued under the fixed designation A1064/A1064M; 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 carbon-steel wire and welded wire reinforcement produced from hot-rolled rod to be used for the
reinforcement of concrete. The steel wire is cold-worked, drawn or rolled, plain (non-deformed, as-drawn or galvanized), or
deformed. Welded wire reinforcement is made from plain or deformed wire, or a combination of plain and deformed wire.
Common wire sizes and dimensions are given in Table 1, Table 2, Table 3, and Table 4. Actual wire sizes are not restricted to those
shown in the tables.
NOTE 1—Welded wire for concrete reinforcement has historically been described by various terms: welded wire fabric, WWF, fabric, and mesh. The wire
reinforcement industry has adopted the term welded wire reinforcement (WWR) as being more representative of the applications of the products being
manufactured. Therefore, the term welded wire fabric has been replaced with the term welded wire reinforcement in this specification and in related
specifications.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text the SI units
are shown in brackets (except in Table 2 and Table 4). The values stated in each system may not be exact equivalents; therefore,
each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with
this specification.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A641/A641M Specification for Zinc–Coated (Galvanized) Carbon Steel Wire
2.2 U.S. Military Standard:
MIL-STD-129 Marking for Shipment and Storage
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.05
on Steel Reinforcement.
Current edition approved Nov. 1, 2022April 15, 2024. Published November 2022April 2024. Originally approved in 2009. Last previous edition approved in 20182022
as A1064/A1064MA1064/A1064M – 22. – 18a. DOI: 10.1520/A1064_A1064M-22.DOI: 10.1520/A1064_A1064M-24.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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.
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://www.dodssp.daps.mil.
*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
A1064/A1064M − 24
A
TABLE 1 Dimensional Requirements for Plain Wire—Inch-Pound Units
Nominal Diameter Nominal Area
B, C, D
Size Number
E 2 2
in. [mm] in. [mm ]
W 0.5 0.080 [2.03] 0.005 [3.23]
W 1.2 0.124 [3.14] 0.012 [7.74]
W 1.4 0.134 [3.39] 0.014 [9.03]
W 2 0.160 [4.05] 0.020 [12.9]
W 2.5 0.178 [4.53] 0.025 [16.1]
W 2.9 0.192 [4.88] 0.029 [18.7]
W 3.5 0.211 [5.36] 0.035 [22.6]
W 4 0.226 [5.73] 0.040 [25.8]
W 4.5 0.239 [6.08] 0.045 [29.0]
W 5 0.252 [6.41] 0.050 [32.3]
W 5.5 0.265 [6.72] 0.055 [35.5]
W 6 0.276 [7.02] 0.060 [38.7]
W 8 0.319 [8.11] 0.080 [51.6]
W 10 0.357 [9.06] 0.100 [64.5]
W 11 0.374 [9.50] 0.110 [71.0]
W 12 0.391 [9.93] 0.120 [77.4]
W 14 0.422 [10.7] 0.140 [90.3]
W 16 0.451 [11.5] 0.160 [103]
W 18 0.479 [12.2] 0.180 [116]
W 20 0.505 [12.8] 0.200 [129]
W 22 0.529 [13.4] 0.220 [142]
W 24 0.553 [14.0] 0.240 [155]
W 26 0.575 [14.6] 0.260 [168]
W 28 0.597 [15.2] 0.280 [181]
W 30 0.618 [15.7] 0.300 [194]
W 31 0.628 [16.0] 0.310 [200]
W 45 0.757 [19.2] 0.450 [290]
A
Table 1 should be used on projects that are designed using inch-pound units; Table 2 should be used on projects that are designed using SI units.
B
The number following the prefix indicates the nominal cross-sectional area of the wire in square inches multiplied by 100.
C
For sizes other than those shown above, the Size Number shall be the number of one hundredth of a square inch in the nominal area of the wire cross section, prefixed
by the W.
D
These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufactures can produce
them in 0.0015 in. increments.
E
The nominal diameter is based on the nominal area of the wire.
A
TABLE 2 Dimensional Requirements for Plain Wire—SI Units
Nominal Diameter Nominal Area
B, C, D
Size Number
E 2 2
mm [in.] mm [in. ]
MW 5 2.52 [0.099] 5 [0.008]
MW 10 3.57 [0.140] 10 [0.016]
MW 15 4.37 [0.172] 15 [0.023]
MW 20 5.05 [0.199] 20 [0.031]
MW 25 5.64 [0.222] 25 [0.039]
MW 30 6.18 [0.243] 30 [0.047]
MW 35 6.68 [0.263] 35 [0.054]
MW 40 7.14 [0.281] 40 [0.062]
MW 45 7.57 [0.298] 45 [0.070]
MW 50 7.98 [0.314] 50 [0.078]
MW 55 8.37 [0.329] 55 [0.085]
MW 60 8.74 [0.344] 60 [0.093]
MW 65 9.10 [0.358] 65 [0.101]
MW 70 9.44 [0.372] 70 [0.109]
MW 80 10.1 [0.397] 80 [0.124]
MW 90 10.7 [0.421] 90 [0.140]
MW 100 11.3 [0.444] 100 [0.155]
MW 120 12.4 [0.487] 120 [0.186]
MW 130 12.9 [0.507] 130 [0.202]
MW 200 16.0 [0.628] 200 [0.310]
MW 290 19.2 [0.757] 290 [0.450]
A
The wire sizes in Table 1 should be used on projects that are designed using inch-pound units; the wire sizes in Table 2 should be used on projects that are designed
using SI units.
B
The number following the prefix indicates the nominal cross-sectional area of the wire in square milimetres.
C
For sizes other than those shown above, the Size Number shall be the number of square millimetres in the nominal area of the wire cross section, prefixed by the MW.
D
These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufactures can produce
them in 1 mm increments.
E
The nominal diameter is based on the nominal area of the wire.
2.3 U.S. Military Standard:
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
A1064/A1064M − 24
TABLE 3 Dimensional Requirements for Deformed Wire—Inch-Pound Units
Nominal Dimensions Deformation Requirements
Minimum Average Height of
A, B, C, D E 2 F
Deformed Wire Size Unit Weight, lb/ft Diameter, in. Cross-Sectional Area, in.
G, H
Deformations, in.
D 1 0.034 0.113 0.010 0.0045
D 2 0.068 0.160 0.020 0.0063
D 3 0.102 0.195 0.030 0.0078
D 4 0.136 0.226 0.040 0.0101
D 5 0.170 0.252 0.050 0.0113
D 6 0.204 0.276 0.060 0.0124
D 7 0.238 0.299 0.070 0.0134
D 8 0.272 0.319 0.080 0.0143
D 9 0.306 0.339 0.090 0.0152
D 10 0.340 0.357 0.100 0.0160
D 11 0.374 0.374 0.110 0.0187
D 12 0.408 0.391 0.120 0.0195
D 13 0.442 0.407 0.130 0.0203
D 14 0.476 0.422 0.140 0.0211
D 15 0.510 0.437 0.150 0.0218
D 16 0.544 0.451 0.160 0.0225
D 17 0.578 0.465 0.170 0.0232
D 18 0.612 0.479 0.180 0.0239
D 19 0.646 0.492 0.190 0.0245
D 20 0.680 0.505 0.200 0.0252
D 21 0.714 0.517 0.210 0.0259
D 22 0.748 0.529 0.220 0.0265
D 23 0.782 0.541 0.230 0.0271
D 24 0.816 0.553 0.240 0.0277
D 25 0.850 0.564 0.250 0.0282
D 26 0.884 0.575 0.260 0.0288
D 27 0.918 0.586 0.270 0.0293
D 28 0.952 0.597 0.280 0.0299
D 29 0.986 0.608 0.290 0.0304
D 30 1.02 0.618 0.300 0.0309
D 31 1.05 0.628 0.310 0.0314
D 45 1.53 0.757 0.450 0.0379
A
The wire sizes in Table 3 should be used on projects that are designed using inch-pound units; the wire sizes in Table 4 should be used on projects that are designed
using SI units.
B
The number following the prefix indicates the nominal cross-sectional area of the deformed wire in square inches multiplied by 100.
C
For sizes other than those shown above, the Size Number shall be the number of one hundredths of a square inch in the nominal area of the deformed wire cross section,
prefixed by the D.
D
These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufacturers can produce
them in 0.0015 in. increments.
E
The nominal diameter of a deformed wire is equivalent to the nominal diameter of a plain wire having the same weight per foot as the deformed wire.
F 3
The cross-sectional area is based on the weight of the wire. The area in square inches may be calculated by dividing the weight in pounds by 0.2833 (weight of 1 in.
of steel) or by dividing the weight per lineal foot of specimen in pounds by 3.4 (weight of steel 1 in. square and 1 foot long).
G
Measurements shall be made as described in 7.2.4.7.
H
See 7.2.4.3 for average number of deformations per unit length.
2.4 American Concrete Institute (ACI) Standard:
ACI 318 Building Code Requirements for Structural Concrete
2.5 Adjuncts:
Weld Tester Drawing
3. Terminology
3.1 Definitions of Terms Specific to This Specification:
3.1.1 convoluted wire—wire, n—plain wire for welded wire reinforcement that is formed into a sinusoidal wave shape; deformed
wire is not subject to convolution unless agreed upon by the purchaser and manufacturer.
3.1.1.1 Discussion—
The wire is used in the manufacture of cages for certain applications of concrete pipe reinforcement.
3.1.2 deformed wire and deformed welded wire reinforcement—reinforcement, n—a material composed of cold-worked deformed
steel wire as cold-drawn or cold-rolled from hot-rolled steel rod.
Available from American Concrete Institute (ACI), P.O. Box 9094, Farmington Hills, MI 48333-9094, http://www.concrete.org.
Available from ASTM International Headquarters. Order Adjunct No. ADJA0185. Original adjunct produced in 1967.
A1064/A1064M − 24
TABLE 4 Dimensional Requirements for Deformed Wire—SI Units
Nominal Dimensions Deformation Requirements
Cross-Sectional Area, Minimum Average Height of
A, B, C, D 2 E
Deformed Wire Size D [in. × 100] Unit Mass, kg/m Diameter, mm
2 F G, H
mm Deformations, mm
MD 25 [D 3.9] 0.196 5.64 25 0.252
MD 30 [D 4.7] 0.235 6.18 30 0.279
MD 35 [D 5.4] 0.275 6.68 35 0.302
MD 40 [D 6.2] 0.314 7.14 40 0.320
MD 45 [D 7.0] 0.353 7.57 45 0.342
MD 50 [D 7.8] 0.392 7.98 50 0.360
MD 55 [D 8.5] 0.432 8.37 55 0.378
MD 60 [D 9.3] 0.471 8.74 60 0.392
MD 65 [D 10.1] 0.510 9.10 65 0.455
MD 70 [D 10.9] 0.549 9.44 70 0.470
MD 80 [D 12.4] 0.628 10.1 80 0.505
MD 90 [D 14.0] 0.706 10.7 90 0.535
MD 100 [D 15.5] 0.785 11.3 100 0.565
MD 120 [D 18.6] 0.942 12.4 120 0.620
MD 130 [D 20.2] 1.02 12.9 130 0.645
MD 200 [D 31.0] 1.57 16.0 200 0.800
MD 290 [D 45.0] 2.28 19.2 290 0.961
A
The wire sizes in Table 3 should be used on projects that are designed using inch-pound units; the wire sizes in Table 4 should be used on projects that are designed
using SI units.
B
The number following the prefix indicates the nominal cross-sectional area of the deformed wire in square millimetres.
C
For sizes other than those shown above, the Size Number shall be the number of square millimetres in the nominal area of the deformed wire cross section, prefixed
by the MD.
D
These sizes represent the most readily available sizes in the welded wire reinforcement industry. Other wire sizes are available and many manufacturers can produce
them in 1 mm increments.
E
The nominal diameter of a deformed wire is equivalent to the nominal diameter of a plain wire having the same weight per metre as the deformed wire.
F -6
The cross-sectional area is based on the mass of the wire. The area in square millimetres may be calculated by dividing the unit mass in kg/mm by 7.849 × 10 (mass
of 1 mm of steel) or by dividing the unit mass in kg/m by 0.007849 (mass of steel 1 mm square and 1 m long).
G
Measurements shall be made as described in 7.2.4.7.
H
See 7.2.4.3 for average number of deformations per unit length.
3.1.2.1 Discussion—
Deformations can be either indented or raised transverse ribs (protrusions). The deformations and the welded intersections provide
bond strength and anchorage.
3.1.3 plain wire and plain welded wire reinforcement—reinforcement, n—a material composed of cold-worked plain steel wire,
as cold-drawn or cold-rolled from hot-rolled steel rod.
3.1.3.1 Discussion—
The welded intersections provide anchorage.
4. Ordering Information
4.1 Orders for wire or welded wire reinforcement under this specification shall contain the following information:
4.1.1 Quantity (weight [mass]) or square area for welded wire reinforcement,
4.1.2 Name of material (cold-drawn or rolled steel wire, or welded wire reinforcement, plain or deformed, for concrete),
4.1.3 Wire size number, wire spacing, and sheet or roll width and length for welded wire reinforcement,
4.1.4 Minimum yield strength or Grade,
4.1.5 Packaging (see Section 15), and
4.1.6 ASTM designation and year of issue.
4.2 The purchaser shall have the option to specify additional requirements, including but not limited to, the following:
4.2.1 Exclusion of over-steeling (see 10.4.2 and 10.5.1),
4.2.2 Report on tests performed on the steel wire or welded wire reinforcement being furnished (see 14.1), and
A1064/A1064M − 24
4.2.3 Special requirements (if desired).
5. Materials
5.1 The steel shall be made by any commercially accepted process.
5.2 Unless otherwise specified, the wire shall be supplied uncoated. When plain wire is specified as galvanized, it shall be
galvanized at finish size as described in Specification A641/A641M.
5.3 Wire used in the manufacture of welded wire reinforcement shall conform to this specification either solely plain or solely
deformed, or a combination of both.
6. Manufacture
6.1 The wire shall be cold-worked, drawn or rolled, from rods that have been hot-rolled from billets.
6.2 For welded wire reinforcement, the wires shall be assembled by automatic machines or by other suitable mechanical means
which will assure accurate spacing and alignment of all wires of the finished product. The finished welded wire reinforcement shall
be furnished in flat or bent sheets or in rolls as specified by the purchaser.
6.3 Longitudinal and transverse wires shall be securely connected at every intersection by a process of electrical resistance
welding which employs the principle of fusion combined with pressure.
6.4 Welded wire reinforcement of proper yield strength and quality when manufactured in the manner herein required shall result
in a strong, serviceable mat-type product having substantially square or rectangular openings, and shall conform to this
specification.
NOTE 2—A variation of manufacturing includes the application of one or more longitudinal convoluted wires at one edge of welded wire reinforcement
for concrete pipe reinforcing cages. This shape allows the cage ends to be expanded to a larger diameter to accommodate the bell-shaped ends of concrete
pipe.
7. Mechanical Property Requirements—Wire, Plain and Deformed
7.1 General Requirements for Plain Wire:
7.1.1 The relation between size number, diameter, and area shown in Table 1 or Table 2 shall apply, whichever is applicable.
7.1.2 Specimens for mechanical properties testing shall be full wire sections and shall be obtained from ends of wire coils as drawn
or rolled. The specimens shall be of sufficient length to perform testing described in Test Methods and Definitions A370.
7.1.3 If any test specimen exhibits obvious isolated imperfections not representative of the product, it shall be discarded and
another specimen substituted.
7.1.4 Tension Test:
7.1.4.1 Plain wire to be used in the manufacture of welded wire reinforcement shall meet or exceed minimum tensile strength,
yield strength, and reduction of area requirements in Table 5. Plain wire not used in welded wire reinforcement shall meet or exceed
minimum tensile strength, yield strength, and reduction of area requirements in Table 6. Testing shall follow Test Methods and
Definitions A370 and shall be based on nominal wire area.
7.1.4.2 Yield strength shall be determined and reported according to the certification criteria in 14.3 and Test Methods and
Definitions A370 at an extension under load of 0.5 % of gagegauge length or by the offset method (0.2 %). It shall be permissible
to remove the extensometer after the yield strength has been determined. The wire shall meet the requirements of Table 6 or Table
5, whichever is applicable.
7.1.5 Bend Test—The bend test specimen shall be bent at room temperature through 180° without cracking on the outside of the
A1064/A1064M − 24
TABLE 5 Tension Test Requirements—Plain Wire for Welded Wire Reinforcement
Size W1.2 [MW 7.7] and Larger
Grade 65 [450] Grade 70 [485] Grade 72.5 [500] Grade 75 [515] Grade 77.5 [533] Grade 80 [550]
Tensile strength, min, psi [MPa] 75 000 [515] 80 000 [550] 82 500 [568] 85 000 [585] 87 500 [603] 90 000 [620]
Yield strength, min, psi [MPa] 65 000 [450] 70 000 [485] 72 500 [500] 75 000 [515] 77 500 [533] 80 000 [550]
A A A A A A
Reduction of area, min, % 30 30 30 30 30 30
Smaller than Size W1.2 [MW 7.7]
Grade 56 [385]
Tensile strength, min, psi [MPa] 70 000 [485]
Yield strength, min, psi [MPa] 56 000 [385]
A
Reduction of area, min, % 30
A
For material testing over 100 000 psi [690 MPa] tensile strength, the reduction of area shall be not less than 25 %.
TABLE 6 Tension Test Requirements—Plain Wire
Grade 70 [485] Grade 72.5 [500] Grade 75 [515] Grade 77.5 [533] Grade 80 [550]
Tensile strength, min, psi [MPa] 80 000 [550] 82 500 [568] 85 000 [585] 87 500 [603] 90 000 [620]
Yield strength, min, psi [MPa] 70 000 [485] 72 500 [500] 75 000 [515] 77 500 [533] 80 000 [550]
A A A A A
Reduction of area, min, % 30 30 30 30 30
A
For material testing over 100 000 psi [690 MPa] tensile strength, the reduction of area shall be not less than 25 %.
bent portion visible to a person with normal or corrected vision, as prescribed in Table 7.
A1064/A1064M − 24
TABLE 7 Bend Test Requirements—Plain Wire
A
Size Number of Wire Pin Diameter for Bend Tests
B
W 7 [MW 45] and smaller 1d
Larger than W 7 MW 45] 2d
A
Bend specimen 180° unless noted otherwise.
B
d = nominal wire diameter.
TABLE 8 Permissible Variation in Plain Wire Diameter
Maximum
Size Number, Nominal Diameter Permissible Variation
Permissible
in.-lbs [SI] in. [mm] Plus and Minus, in. [mm]
A
Out-of-Round, in. [mm]
Smaller than W 5 [MW 32] under 0.252 [6.40] 0.003 [0.08] 0.003 [0.08]
W 5 [MW 32] to W 12 [MW 77], incl 0.252 [6.40] to 0.391 [9.93] incl 0.004 [0.10] 0.004 [0.10]
Over W 12 [MW 77] to W 20 [MW 129], incl over 0.391 [9.93] to 0.505 [12.83], incl 0.006 [0.15] 0.006 [0.15]
Over W 20 [MW 129] over 0.505 [12.83] 0.008 [0.20] 0.008 [0.20]
A
Out-of-round is the difference between maximum and minimum diameters of the wire, measured at the same transverse cross section.
7.1.6 Permissible Variation in Wire Diameter:
7.1.6.1 The permissible variation in wire diameter shall conform to the requirements in Table 8.
7.1.6.2 The difference between the maximum and minimum diameters, as measured on any given cross section of the wire, shall
not exceed the tolerances listed in Table 8 for the given wire size.
NOTE 3—Cold-worked wire generally does not exhibit a definite yield point as evidenced by a distinct arrest or halt in the load indication gauge of the
testing machine prior to reaching ultimate tensile load.
7.2 General Requirements for Deformed Wire:
7.2.1 The relation between size number, diameter, and area shown in Table 3 or Table 4 shall apply, whichever is applicable.
7.2.2 Specimens for mechanical properties testing shall be full wire sections and shall be obtained from ends of wire coils as
rolled. The specimens shall be of sufficient length to perform testing described in Test Methods and Definitions A370.
7.2.3 If any test specimen exhibits obvious isolated imperfections not representative of the product, it shall be discarded and
another specimen substituted.
7.2.4 Deformation Criteria:
7.2.4.1 Deformations shall be spaced along the wire at a substantially uniform distance and shall be symmetrically dispersed
around the perimeter. The deformations on all longitudinal lines of the wire shall be similar in size and shape. A minimum of 25 %
of the total surface area shall be deformed by measurable deformations.
7.2.4.2 Deformed wire shall have two or more lines of deformations.
7.2.4.3 The average longitudinal spacing of deformations shall be not less than 3.5 nor more than 5.5 deformations per inch [25
mm] in each line of deformations on the wire.
7.2.4.4 The minimum average height of the center of typical deformations based on the nominal wire diameters shown in Table
3 or Table 4 shall be as follows:
Minimum Average
Height of Deformations
Percent of Nominal
Wire Sizes Wire Diameter
D 3 [MD 20] and smaller 4
Larger than D 3 [MD 20] through D 10 [MD 65] 4 ⁄2
Larger than D 10 [MD 65] 5
A1064/A1064M − 24
TABLE 9 Tension Test Requirements—Deformed Wire
Grade 75 [515] Grade 77.5 [533] Grade 80 [550]
Tensile strength, min, psi [MPa] 85 000 [585] 87 500 [603] 90 000 [620]
Yield strength, min, psi [MPa] 75 000 [515] 77 500 [533] 80 000 [550]
TABLE 10 Tension Test Requirements—Deformed Wire for Welded Wire Reinforcement
Grade 70 [485] Grade 72.5 [500] Grade 75 [515] Grade 77.5 [533] Grade 80 [550]
Tensile strength, min, psi [MPa] 80 000 [550] 82 500 [568] 85 000 [585] 87 500 [603] 90 000 [620]
Yield strength, min, psi [MPa] 70 000 [485] 72 500 [500
...