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Tiêu chuẩn cáp mạ kẽm astm a603

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Designation: A 603 – 98
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM

Standard Specification for

Zinc-Coated Steel Structural Wire Rope1
This standard is issued under the fixed designation A 603; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

4.1.6 Special packaging requirements (Section 13), and
4.1.7 Inspection (Section 12).

1. Scope
1.1 This specification covers zinc-coated steel structural
wire rope, prestretched or nonprestretched for use where a
high-strength, relatively flexible prefabricated zinc-coated
multiple-wire tension member is desired as a component part
of a structure.
1.2 The wire rope is furnished with Class A weight zinccoated wires throughout. It can be furnished with Class B
weight or Class C weight zinc-coated outer wires or Class B
weight or Class C weight zinc-coated wires throughout where
additional corrosion protection is required.
1.3 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
information only.

5. Materials and Manufacture
5.1 Base Metal—The base metal shall be carbon steel made
by the open-hearth, basic-oxygen, or electric-furnace process
and of such quality that the finished wire rope and the
hard-drawn individual zinc-coated wires coated by the hot-dip
or electrolytic process shall have the properties and characteristics as prescribed in this specification.
5.2 Zinc—The slab zinc when used shall conform to Specification B 6 or better.
6. Physical Properties
6.1 Tensile Properties:
6.1.1 The zinc-coated wire used in the wire rope shall
conform to the mechanical properties in Table 6 prior to
fabrication, but the wire test sample may be prestretched to
55 % of the minimum tensile strength specified in Table 6 prior
to conducting the tests.
6.1.2 The tensile strength and the stress at 0.7 % extension
shall be based on the actual cross-sectional area of the finished
wire, including the zinc coating.
6.1.3 Test Specimens—The test specimens shall be free of
bends or kinks other than the curvature resulting from the usual
coiling operation. The hand straightening necessary to permit
insertion of th...
Designation: A 603 98
Standard Specification for
Zinc-Coated Steel Structural Wire Rope
1
This standard is issued under the fixed designation A 603; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This specification covers zinc-coated steel structural
wire rope, prestretched or nonprestretched for use where a
high-strength, relatively flexible prefabricated zinc-coated
multiple-wire tension member is desired as a component part
of a structure.
1.2 The wire rope is furnished with Class A weight zinc-
coated wires throughout. It can be furnished with Class B
weight or Class C weight zinc-coated outer wires or Class B
weight or Class C weight zinc-coated wires throughout where
additional corrosion protection is required.
1.3 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
information only.
2. Referenced Documents
2.1 ASTM Standards:
A 90/A 90M Test Method for Weight of Coating on Zinc-
Coated (Galvanized) Iron or Steel Articles
2
A 902 Terminology Relating to Metallic Coated Steel Prod-
ucts
2
B 6 Specification for Zinc (Slab Zinc)
3
3. Terminology
3.1 Definitions—For definitions of terms used in this speci-
fication, see Terminology A 902.
NOTE 1—The following term used in this specification is defined in
Terminology A 902: carbon steel.
4. Ordering Information
4.1 Orders for material under this specification shall include
the following information:
4.1.1 Length of wire rope,
4.1.2 Nominal diameter of wire rope (Tables 1-4),
4.1.3 Prestretched (see 8.3) or nonprestretched,
4.1.4 Coating-weight class if other than Class A (Table 5),
4.1.5 Mechanical tests if required (see 10.1),
4.1.6 Special packaging requirements (Section 13), and
4.1.7 Inspection (Section 12).
5. Materials and Manufacture
5.1 Base Metal—The base metal shall be carbon steel made
by the open-hearth, basic-oxygen, or electric-furnace process
and of such quality that the finished wire rope and the
hard-drawn individual zinc-coated wires coated by the hot-dip
or electrolytic process shall have the properties and character-
istics as prescribed in this specification.
5.2 Zinc—The slab zinc when used shall conform to Speci-
fication B 6 or better.
6. Physical Properties
6.1 Tensile Properties:
6.1.1 The zinc-coated wire used in the wire rope shall
conform to the mechanical properties in Table 6 prior to
fabrication, but the wire test sample may be prestretched to
55 % of the minimum tensile strength specified in Table 6 prior
to conducting the tests.
6.1.2 The tensile strength and the stress at 0.7 % extension
shall be based on the actual cross-sectional area of the finished
wire, including the zinc coating.
6.1.3 Test Specimens—The test specimens shall be free of
bends or kinks other than the curvature resulting from the usual
coiling operation. The hand straightening necessary to permit
insertion of the specimen in the jaws of the testing machine
shall be performed by drawing between wood blocks or by
some other equally satisfactory means.
6.2 Stress at 0.7 % Extension Under Load—The value of
stress at 0.7 % extension under load shall be determined by one
of the following procedures, depending on the type of exten-
someter used:
6.2.1 Non-Autographic Extensometer—When a non-
autographic extensometer is used to measure the 0.7 % exten-
sion, it shall have a gage length of 10 in. (254 mm), and it shall
be so graduated that the smallest division corresponds to a
strain not larger than 0.0001 in./in. (0.0001 mm/mm) of gage
length. Apply a load corresponding to the tensile stress
indicated in Table 5, using the nominal diameter of the
specimen. Maintain this load while a 10-in. extensometer is
attached and adjusted to the initial setting shown in Table 5.
Then increase the load uniformly until the extensometer
1
This specification is under the jurisdiction of ASTM Committee A-5 on
Metallic-Coated Iron and Steel Productsand is the direct responsibility of Subcom-
mittee A05.12on Wire Specifications.
Current edition approved April 10, 1998. Published October 1998. Originally
published as A 603 70. Last previous edition A 603 94.
2
Annual Book of ASTM Standards, Vol 01.06.
3
Annual Book of ASTM Standards, Vol 02.04.
1
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
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