ASTM A1060 - A 1060M - 22

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Designation: A1060/A1060M −22
Standard Specification for
Zinc-Coated (Galvanized) Steel Welded Wire Reinforcement,
Plain and Deformed, for Concrete
1
This standard is issued under the fixed designation A1060/A1060M; 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 zinc-coated steel welded wire
reinforcement, plain and deformed, or a combination of de-
formed and plain wires, for reinforcement of concrete, in sizes
not less than 0.080 in. [2.03 mm] and over nominal diameter
for plain wire and 0.113 in. [2.87 mm] and over for deformed
wire.
1.2 This specification is intended to be applicable to cold-
worked wire, drawn or rolled, plain or deformed, coated in a
continuous process.
1.3 An alternative to a continuous coating process of wire
before fabrication is a hot-dip process, where the welded wire
reinforcement is immersed in a bath of molten zinc.
NOTE 1—Data on the corrosion resistance of galvanized steels in
concrete are limited. The user is cautioned that the laboratory testing
performed on this material has been insufficient and may not accurately
reflect the performance of the material when embedded in concrete as
reinforcement.
1.4 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. 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 the standard.
1.5 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 appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
2
A90/A90M Test Method for Weight [Mass] of Coating on
Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
A780 Practice for Repair of Damaged and Uncoated Areas
of Hot-Dip Galvanized Coatings
A1064/A1064M Specification for Carbon-Steel Wire and
Welded Wire Reinforcement, Plain and Deformed, for
Concrete
B6 Specification for Zinc
B487 Test Method for Measurement of Metal and Oxide
Coating Thickness by Microscopical Examination of
Cross Section
E376 Practice for Measuring Coating Thickness by
Magnetic-Field or Eddy Current (Electromagnetic) Test-
ing Methods
2.2 Military Standard:
3
MIL-STD-129 Marking for Shipment and Storage
2.3 Federal Standard:
3
Fed. Std. No. 123 Marking for Shipments (Civil Agencies)
3. Terminology
3.1 Definitions of Terms Specific to this Specification:
3.1.1 continuous coating, n—of metallic coated steel
products, the process of uninterrupted passage of long lengths
of steel products, usually steel sheet, tube, pipe, or wire,
through the various processing steps such as cleaning and
coating.
4. Ordering Information
4.1 Orders for zinc-coated welded wire reinforcement under
this specification shall contain the following information:
4.1.1 Quantity (weight [mass] or square area),
4.1.2 Name of material (galvanized welded wire
reinforcement),
1
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, 2022. Published November 2022. Originally
approved in 2010. Last previous edition approved in 2016 as A1060/A1060M – 16b.
DOI:10.1520/A1060_A1060M-22.
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
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
3
Available from U.S. Government Printing Office Superintendent of Documents,
732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
*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
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.
1
4.1.3 Required zinc coating weight [mass] (coated before
fabrication) or zinc coating thickness (coated after fabrication),
4.1.4 Packaging (see Section 13), and
4.1.5 ASTM designation A1060 [A1060M] 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 Wire size number, wire spacing, and sheet or roll
width and length,
4.2.2 Minimum yield strength or Grade, and
4.2.3 Requirements for inspection (see Section 9),
5. General Requirements
5.1 The wire used in the manufacture of welded wire
reinforcement shall conform to Specification A1064/A1064M.
After galvanizing, the welded wire reinforcement shall meet
the required mechanical properties of Specification A1064/
A1064M except for the bend test requirements as prescribed in
Table 1 of this specification.
5.2 Welded wire reinforcement shall be furnished either in
flat sheets, or in rolls, as specified by the purchaser.
5.3 The zinc used for coating shall be any grade that
conforms to Specification B6.
6. Galvanizing
6.1 Mass [Weight] Thickness of Coating and Test:
6.1.1 This specification includes six classes of coating
weight [mass] when the welded wire reinforcement is coated
before fabrication and four coating thickness grades when the
welded wire reinforcement is coated after fabrication. The
weight [mass] of zinc coating is based on the measured
diameter of the wire when the stripping method is performed
and the nominal diameter for all other methods, and shall
conform to the requirements shown in Table 2 or Table 3.
Individual results not more than 10 % below the minimum
values specified in Table 2 or Table 3 are allowed if the average
of at least two samples from the same coil are equal to or
greater than the minimum, individual results shall be not less
than 1.08 oz/ft
2
[330 g/m
2
].
6.1.1.1 When the product is coated before fabrication in a
continuous coating process, coating weights are given in Table
2for various zinc coating classes.
NOTE 2—Zinc coated wire produced as “regular coating” shall have the
full surface covered with zinc, but there is no specified minimum weight
of coating.
6.1.1.2 When the product is coated after fabrication in a
hot-dip process, coating thickness are given in Table 3 for
various zinc coating grades.
NOTE 3—At the purchaser’s request the galvanized coating may be
chromate treated. This is to minimize a reaction between the reinforcing
steel and fresh portland cement paste. Proprietary chromating solutions of
equivalent strength are permitted in place of the generic chemical
treatment specified.
6.1.2 Magnetic Thickness Measurements—The weight
[mass] of the coating may be determined by magnetic thickness
gage measurements in accordance with Practice E376. The
thickness measurement is used to calculate the weight [mass]
by multiplying it by the surface area of coated wire and by the
zinc density. Because this form of testing can yield inconsistent
and potentially unreliable results on smaller sizes of wire, one
or more of the following methods shall be permitted to be used
to referee and take precedence over the results obtained by
magnetic thickness measurements.
6.1.2.1 Stripping Method—The weight [mass] shall be de-
termined by stripping the coating from the steel wire specimen
in accordance with Section 8and Test Method A90/A90M.
6.1.2.2 Weighing Before and After Galvanizing—The
weight [mass] shall be determined by weighing the sample
before and after galvanizing. The difference between the two
measurements divided by the surface area of the sample
provides the weight [mass]. The original weighing shall occur
after pickling and drying. The second weighing shall occur
after cooling to ambient temperature.
6.1.2.3 Microscopy—The weight [mass] shall be determined
by cross-sectional and optical measurement in accordance with
Test Method B487. A cross-section sample of the steel shall be
polished and examined with an optical microscope to deter-
mine the coating thickness. The coating weight [mass] shall be
determined by multiplying coating thickness by the surface
area of the coated sample and by the density of zinc.
6.1.3 Number of Tests—For determination of the coating
weight [mass], three random samples shall be tested from each
lot. For each magnetic thickness measurement sample, five or
more measurements shall be made along the length and width
of the sample so as to represent the entire surface of the
sample. A total of at least fifteen measurements shall be
averaged to obtain the coating thickness. For the microscopy
method, five samples shall be tested per lot. Each sample shall
be measured on four sides and the total of twenty measure-
ments shall be averaged to obtain the coating thickness. For the
stripping method and the weighing method, three samples per
lot shall be measured.
NOTE 4—A lot shall be as follows: all wire of the same size furnished
to the same steel reinforcing specification that has been galvanized within
a single production shift.
6.2 Handling:
6.2.1 The identification of all reinforcing steel shall be
maintained throughout the coating and fabrication process to
the point of shipment.
TABLE 1 Mandrel Diameters for Test for Adherence of Zinc
Coating Inch-Pound Units [SI Units]
Mandrel Diameters of Coating Classes and Grades
Wire Diameter Regular and
Class 1
Class 3 or A,
4, B, 5, and
C
Grade 50,
60, 65, and
80
Under
0.148 [3.70]
1D
A
3D 3D
0.148 [3.70]
to
0.500 [12.7]
2D 4D 4D
over
0.500 [12.7]
3D 5D 5D
A
D = nominal wire diameter being tested.
A1060/A1060M − 22
2
7. Finish and Adherence of Coating
7.1 The zinc coating shall have no bare spots. The coating
shall be free of blisters, flux spots or inclusions, dross, and acid
or black spots. To ensure large continuous length coils, welds
are permitted in the finished wire. A matte gray finish appear-
ance shall not be itself a cause for rejection.
7.2 Adherence of Coating—The coated wire as represented
by the test specimens shall be capable of passing a bend test
without cracking or flaking the coating to such an extent that
any coating is removed when rubbed with the bare fingers. The
bend test specimen shall withstand being bent at room tem-
perature through 180° as prescribed in Table 1.
8. Number of Tests
8.1 Testing for Coating Weight [Mass] Before Fabrication—
For the purpose of final product testing, one specimen from
every ten coils of wire or fraction thereof in a lot shall be
selected at random or a total of seven specimens, whichever is
less.
8.1.1 A wire sample of sufficient length, approximately 4-ft
[1.2-m] shall be cut from either end of each coil selected for
tests described in Section 6.
8.2 Testing for Coating Thickness After Fabrication—The
purchaser may specify the sampling and test schedule for the
number and frequency of tests for coating thickness.
8.3 If the number and frequency of test are not specified by
the purchaser:
8.3.1 One test specimen from every 20 000 ft
2
[1900 m
2
]
of welded wire reinforcement shall be tested for compliance
with Section 6.
8.4 Retests—If the average zinc coating weight [mass]
thickness fails to meet the requirements of Table 2 or Table 3,
six additional random samples from the lot shall be permitted
to be tested. If the average zinc coating weight [mass] of the six
samples conforms to the specified coating thickness, the lot
shall be accepted.
9. Inspection
9.1 Inspection of the zinc-coated steel welded wire rein-
forcement shall be agreed upon between the purchaser and the
manufacturer as part of the purchase order or contract.
9.2 The material shall be inspected at the galvanizer’s plant
prior to shipment. However, if specified, the purchaser shall
conduct the tests which govern the acceptance or rejection of
the materials in his own laboratory or elsewhere.
10. Rejection and Rehearing
10.1 Unless otherwise specified, any rejection shall be
reported to the manufacturer within five days from the time of
selection of test specimens.
10.2 Welded intersections shall withstand normal shipping
and handling without becoming broken, but the presence of
broken welds, regardless of cause, shall not constitute cause for
rejection unless the number of broken welds per sheet exceeds
1 % of the total number of joints in a sheet, or if the material
is furnished in rolls, 1 % of the total number of joints in 150 ft
2
[14 m
2
] of welded wire reinforcement and, furthermore,
provided not more than one half the permissible maximum
number of broken welds are located on any one wire.
10.3 Rehearing—Rejected materials shall be preserved for a
period of at least two weeks from the date of inspection, during
which time the manufacturer shall be permitted to make claim
for a rehearing and retesting.
10.4 Rust formations on the cut ends of the wire and at
welded intersections are inherent characteristics of this mate-
rial and shall not be cause for rejection.
11. Repair of Damaged Coating
11.1 Prior to shipment, all coating defects other than those
described in 10.4 shall be repaired with a zinc-rich formulation
in accordance with Practice A780.
12. Certification
12.1 If outside inspection is waived, a manufacturer’s cer-
tification that the material has been tested in accordance with
TABLE 2 Minimum Weight [Mass] of Zinc Coating, oz/ft
2
[g ⁄m
2
] Coated Before Fabrication
Wire Diameter
in. [mm]
A
Class 1 Class 2 Class 3 or A Class B Class 5 Class C
0.080 [2.03] 0.25 [76] 0.70 [214] 1.20 [366] 1.40 [427] 2.00 [610] 2.10 [641]
0.099 [2.50] 0.28 [85] 0.70 [214] 1.20 [366] 1.60 [488] 2.00 [610] 2.40 [732]
0.135 [3.40] 0.30 [92] 0.85 [260] 1.20 [366] 1.70 [520] 2.00 [610] 2.55 [778]
0.148 [3.80] 0.35 [107] 0.90 [275] 1.20 [366] 1.80 [550] 2.00 [610] 2.70 [824]
0.162 [4.10] 0.35 [107] 0.90 [275] 1.20 [366] 1.80 [550] 2.00 [610] 2.70 [824]
0.177 [4.50] 0.44 [134] 0.90 [275] 1.20 [366] 1.80 [550] 2.00 [610] 2.70 [824]
0.192 [4.90] 0.50 [153] 1.00 [305] 1.20 [366] 2.00 [610] 2.00 [610] 3.00 [915]
0.207 [5.30] 0.53 [162] 1.00 [305] 1.20 [366] 2.00 [610] 2.00 [610] 3.00 [915]
and larger
A
Coating weights [mass] for diameters other than those shown in Table 2 are the coating weights [mass] for the next smaller diameter.
TABLE 3 Coating Thickness Grade
A
Coated After Fabrication
Wire Diameter Coating
Grade Mils oz/ft
2
µm g/m
2
Under
0.125 [3.2]
50 2.0 1.20 [50] [355]
0.125 [3.2]
to under
0.188 [4.8]
60 2.4 1.30 [60] [390]
0.188 [4.8]
to under
0.250 [6.4]
65 2.6 1.50 [65] [460]
0.250 [6.4]
and larger
80 3.1 1.90 [80] [565]
A
The values in micrometers (µm) are based on the Coating Grade. The other
values are based on conversions using the following formulas:
mils = µm × 0.03937; oz ⁄ft
2
= µm × 0.02316; g ⁄m
2
= µm × 7.067.
A1060/A1060M − 22
3
摘要:

ASTM A1060 - A1060M - 22 是美国材料与试验协会(ASTM)发布的关于高强度低合金钢无缝与焊接管道的最新标准规范。该标准适用于石油、天然气及化工等工业领域的管道系统,覆盖了材料的化学成分、机械性能、热处理要求、尺寸公差及无损检测等关键指标。内容明确了管道的生产与验收流程,旨在确保产品在高压、低温或腐蚀性环境下的安全性与可靠性。本版本(22版)整合了2022年的技术修订,替代了旧版要求,为工程设计、采购及质量检验提供了权威参考依据。该标准有助于提升管道系统的使用寿命与抗疲劳性

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作者:Carl 分类:国外协会 价格:14星币 属性:4 页 大小:80.6KB 格式:PDF 时间:2024-09-02

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