ASTM B398/B398M-99
(Specification)Standard Specification for Aluminum-Alloy 6201-T81 Wire for Electrical Purposes
Standard Specification for Aluminum-Alloy 6201-T81 Wire for Electrical Purposes
SCOPE
1.1 This specification covers aluminum-alloy 6201-T81 (hard: solution heat-treated, cold worked, and artificially aged) round wire for electrical purposes.
1.2 The values stated in inch-pound units are to be regarded as the standard, with the exception of density, resistivity, and temperature. The SI equivalents of inch-pound units may be approximate. Note 1-The alloy and temper designations conform to ANSI H35.1. Aluminum-alloy 6201 corresponds to unified numbering system alloy A96201 in accordance with Practice E527. Note 2-A complete metric companion to Specification B398 has been developed-Specification B398M; However metric equivalents are included in this inch-pound specification for information only.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 398/B 398M – 99
Standard Specification for
Aluminum-Alloy 6201-T81 Wire for Electrical Purposes
This standard is issued under the fixed designation B 398/B 398M; 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 2.4 NIST Standard:
NBS Handbook 100—Copper Wire Tables
1.1 This specification covers aluminum-alloy 6201-T81
(hard: solution heat-treated, cold worked, and artificially aged)
3. Terminology
round wire for electrical purposes.
3.1 Definitions of Terms Specific to This Standard:
NOTE 1—The alloy and temper designations conform to ANSI H35.1/
3.1.1 lot—A group of production units, up to 30 000 lb [15
H35.1M. Aluminum-alloy 6201 corresponds to unified numbering system
metric tons] of mass, of one type and size of wire, which was
alloy A96201 in accordance with Practice E 527.
produced during the same time period, under similar produc-
1.2 The values stated in inch-pound or SI units are to be
tion conditions, and is presented for acceptance at the same
regarded separately as standard. The values in each system are
time (Explanatory Notes 1 and 2).
not exact equivalents; therefore, each system shall be used
3.1.2 production unit—A coil, reel, spool, or other package
independently of the other. Combining values from the two
of wire that represents a single usable length.
systems may result in nonconformance with the specification.
3.1.3 sample—The production unit or units from which a
1.2.1 For density, resistivity and temperature, the values
test specimen or specimens has been removed, and which is
stated in SI units are to be regarded as standard.
considered to have properties representative of the lot.
3.1.4 specimen—A length of wire removed for test pur-
2. Referenced Documents
poses.
2.1 The following documents of this issue in effect on date
of material purchase form a part of this specification to the 4. Ordering Information
extent referenced herein.
4.1 Orders for material under this specification shall include
2.2 ASTM Standards:
the following information:
B 193 Test Method for Resistivity of Electrical Conductor
4.1.1 Quantity of each size,
Materials
4.1.2 Wire size: diameter in inches or in millimetres (see
B 557 Test Methods of Tension Testing Wrought and Cast
11.1),
Aluminum- and Magnesium-Alloy Products
4.1.3 Special tension test, if required (see 7.2 and 7.3),
B 830 Specification for Uniform Test Methods and Fre-
4.1.4 Frequency of bending test (see 8.2),
quency
4.1.5 Special jointing procedures, if permitted (see 12.2),
E 527/B 557M Practice for Numbering Metals and Alloys
4.1.6 Place of inspection (see 15.2),
(UNS)
4.1.7 Package size and type (see 16.1), and
2.3 ANSI Standard:
4.1.8 Special package marking, if required (see 16.4).
ANSI H35.1, American National Standard for Alloy and
5. Material and Manufacture
Temper Designation Systems for Aluminum
ANSI H35.1M American National Standard Alloy and Tem-
5.1 The aluminum alloy used shall be of such quality that
per Designation Systems for Aluminum [Metric]
wire produced from it can comply with the requirements as to
chemical composition, tensile and elongation properties, bend-
ing properties, and electrical resistivity prescribed in this
This specification is under the jurisdiction of ASTM Committee B-1 on
specification.
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
Conductors of Light Metals.
6. Chemical Composition
Current edition approved April 10, 1999. Published June 1999. Originally
published as B 398 – 63T. Last previous edition B 398 – 97.
6.1 The wire shall be made from aluminum alloy 6201 as
Annual Book of ASTM Standards, Vol 02.03.
Annual Book of ASTM Standards, Vol 02.02.
Annual Book of ASTM Standards, Vol 01.01.
5 6
Available from American National Standards Institute, 11 West 42nd St., 13th Available from the National Institute of Standards and Technology (NIST),
Floor, New York, NY 10036. Gaithersburg, MD 20899.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
B 398/B 398M
TABLE 2 Tensile Requirements
designated in ANSI H35.1/H35.1M. The material shall con-
form to the chemical composition prescribed in Table 1. Tensile Strength, min Elongation in 10
Diameter, in. (mm)
Average Individual in. (250 mm) for
for a lot Tests Individual Tests,
7. Tensile Properties
min, %
Over Through ksi (MPa) ksi (MPa)
7.1 The heat-treated, drawn, and artificially aged wire when
0.1280 (3.25) 0.1878 (4.75) 46 (315) 44 (305) 3.0
0.0610 (1.50) 0.1280 (3.25) 48 (330) 46 (315) 3.0
sampled in accordance with Section 14 of this specification and
tested in accordance with Test Methods B 557/B 557M shall
conform to the tensile requirements prescribed in Table 2
A
TABLE 3 Equivalent Resistivity Values at 20°C (68°F)
(Explanatory Note 3).
A
Resistivity Constants
7.2 When requested by the purchaser, tension tests shall be
Volume Conductivity
Material Volume
% IACS
made on specimens of heat-treated, drawn, and artificially aged
V·cmil/ft (V·mm /m)
wire containing joints made in the wire after heat treatment and Copper 100 10.371 (0.017241)
Aluminum 61.0 17.002 (0.028265)
prior to final drawing. Such tests shall show not less than 90 %
53.5 19.385 (0.032227)
of the minimum strength specified in Table 2 for individual
52.5 19.755 (0.32841)
test.
A
The equivalent resistivity values for 100 % IACS (soft copper) were each
7.3 When requested by the purchaser, tension tests shall be
computed from the fundamental IEC value ( ⁄58 V·mm m) using conversion factors
each accurate to at least seven significant figures. Corresponding values for other
made on specimens of heat-treated, drawn, and artificially aged
conductivities (aluminum) were derived from these by multiplying by the reciprocal
wire containing joints made in the finished wire or during the
of the conductivity ratios accurate to at least seven significant figures.
final drawing as permitted in 12.2. Such tests shall show the
tensile strength to be not less than 42 ksi (290 MPa) for
cold-pressure welds and for electric-butt, cold-upset welds and
11. Diameter and Permissible Variations
not less than 15 ksi (100 MPa) for electric-butt welds.
11.1 The diameter of the wire shall be expressed in decimal
Electric-butt welds in addition shall show a minimum elonga-
fractions of an inch using four places of decimals or in
tion of 6 % in 10 in. (250 mm).
millimetres using two places of decimals.
11.2 Ten percent, but not less than five coils or spools (or all
8. Bending Properties
if the lot is less than five) from any lot of wire shall be gaged
8.1 The wire shall be free of brittleness as evidenced by its
at three places. If the material is in coil form, one gaging shall
ability to be coiled or looped around its own diameter either
be made near each end and one near the middle.
with or without a mandrel. No fracture shall occur. Slight
11.3 The permissible variations in diameter are as follows:
surface checks shall not consititute cause for rejection.
Permissible Variations of Mean
8.2 Any coil or reel may be tested in accordance with 8.1,
Diameter from Specified Diameter,
but the frequency of production sampling and testing shall be
Specified Diameter, in. (mm) plus and minus
0.1878 to 0.1000 1%
by agreement between the manufacturer and the purchaser.
(4.75 to 2.55), incl
Under 0.1000 to 0.0612 0.0010 in. (0.03 mm)
9. Resistivity
(2.55 to 1.50), incl
9.1 Electrical resistivity, determined on samples selected in
12. Joints
accordance with Section 14 of this specification and tested in
accordance with Test Method B 193, shall not exceed 0.032841
12.1 Unless otherwise specified at the time of placing the
V·mm /m at 20°C (68°F) (Explanatory Note 2 and Table 3).
order, wire shall be supplied in one continuous length of reel,
coil, or spool. Joints may be made in the drawing stock or wire
10. Density
after heat treatment and prior to final drawing by electric-butt
10.1 For the purpose of calculating mass, mass per unit
welding, by cold-pressure welding, or by electric-butt, cold-
length, mass cross sections, etc., the density of aluminum-alloy
upset welding in accordance with good commercial practice.
3 3
6201 shall be taken as 2690 kg/m (0.097 lb/in. ) at 20°C.
Unless otherwise specified, no joints shall be made during final
drawing or in the finished wire.
A
TABLE 1 Chemical Requirements
12.2 If agreed upon between the manufacturer and the
Element Composition, %
purchaser, joints may be made during final drawing or in the
Copper, max 0.10
finished wire by cold-pressure welding, by electric-butt, cold-
Iron, max 0.50
upset welding, or by electric-butt welding. Following welding,
Silicon 0.50–0.9
Manganese, max 0.03
electric-butt welds shall be annealed for a distance of at least 6
Magnesium 0.6–0.9
in. (150 mm) on each side of the weld. Not more than 10 % of
Zinc, max 0.10
the reels, coils, or spools shall contain such joints and no joint
Chromium, max 0.03
Boron, max 0.06
shall be closer than 50 ft (15 m) to another or to either end of
Other elements, each, max 0.03
the wire, and not more than two such joints shall be present in
Other elements, total, max 0.10
any reel, coil, or spool of the nominal specified mass.
Aluminum remainder
A
Analysis shall regularly be made only for the elements specified in this table.
13. Workmanship, Finish and Appearance
If, however, the presence of other elements is suspected o
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.