ASTM B398/B398M-02(2007)
(Specification)Standard Specification for Aluminum-Alloy 6201-T81 Wire for Electrical Purposes
Standard Specification for Aluminum-Alloy 6201-T81 Wire for Electrical Purposes
ABSTRACT
This specification covers aluminum-alloy 6201-T81 round wire which are solution heat-treated, cold worked, and artificially aged for electrical purposes. The material shall conform to the chemical composition requirements. Tensile properties such as tensile strength and elongation and bending properties shall be determined via a tension test and bending test, respectively. The electrical resistivity and density of the wires shall be measured as well.
SCOPE
1.1 This specification covers aluminum-alloy 6201-T81 (hard: solution heat-treated, cold worked, and artificially aged) round wire for electrical purposes.Note 1 - The alloy and temper designations conform to ANSI H35.1 and H35.1M. Aluminum-alloy 6201 corresponds to unified numbering system alloy A96201 in accordance with Practice E 527.
1.2 The values stated in inch-pound or SI units are to be regarded separately as standard. The values in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
1.2.1 For density, resistivity and temperature, the values stated in SI units are to be regarded as standard.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:B398/B398M −02(Reapproved 2007)
Standard Specification for
Aluminum-Alloy 6201-T81 Wire for Electrical Purposes
This standard is issued under the fixed designation B398/B398M; 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 ANSI H35.1M American National StandardAlloy and Tem-
per Designation Systems for Aluminum [Metric]
1.1 This specification covers aluminum-alloy 6201-T81
2.4 NIST Standard:
(hard: solution heat-treated, cold worked, and artificially aged)
Handbook 100 Copper Wire Tables
round wire for electrical purposes.
NOTE 1—The alloy and temper designations conform to ANSI H35.1
3. Terminology
and H35.1M. Aluminum-alloy 6201 corresponds to unified numbering
system alloy A96201 in accordance with Practice E527.
3.1 Definitions of Terms Specific to This Standard:
3.1.1 lot—A group of production units, up to 30 000 lb [15
1.2 The values stated in inch-pound or SI units are to be
metric tons] of mass, of one type and size of wire, which was
regarded separately as standard. The values in each system are
produced during the same time period, under similar produc-
not exact equivalents; therefore, each system shall be used
tion conditions, and is presented for acceptance at the same
independently of the other. Combining values from the two
time (Explanatory Notes 1 and 2).
systems may result in nonconformance with the specification.
1.2.1 For density, resistivity and temperature, the values 3.1.2 production unit—A coil, reel, spool, or other package
stated in SI units are to be regarded as standard.
of wire that represents a single usable length.
3.1.3 sample—The production unit or units from which a
2. Referenced Documents
test specimen or specimens has been removed, and which is
2.1 The following documents of this issue in effect on date
considered to have properties representative of the lot.
of material purchase form a part of this specification to the
3.1.4 specimen—A length of wire removed for test pur-
extent referenced herein.
poses.
2.2 ASTM Standards:
B193 Test Method for Resistivity of Electrical Conductor
4. Ordering Information
Materials
4.1 Orders for material under this specification shall include
B557 Test Methods for Tension Testing Wrought and Cast
the following information:
Aluminum- and Magnesium-Alloy Products
4.1.1 Quantity of each size,
B557M Test Methods for Tension Testing Wrought and Cast
4.1.2 Wire size: diameter in inches or in millimetres (see
Aluminum- and Magnesium-Alloy Products (Metric)
11.1),
B830 Specification for Uniform Test Methods and Fre-
4.1.3 Special tension test, if required (see 7.2 and 7.3),
quency
4.1.4 Frequency of bending test (see 8.2),
E527 Practice for Numbering Metals and Alloys in the
4.1.5 Special jointing procedures, if permitted (see 12.2),
Unified Numbering System (UNS)
4.1.6 Place of inspection (see 15.2),
2.3 ANSI Standard:
4.1.7 Package size and type (see 16.1), and
ANSI H35.1 American National Standard for Alloy and
4.1.8 Special package marking, if required (see 16.4).
Temper Designation Systems for Aluminum
5. Material and Manufacture
This specification is under the jurisdiction of ASTM Committee B01 on
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
5.1 The aluminum alloy used shall be of such quality that
Conductors of Light Metals.
wire produced from it can comply with the requirements as to
Current edition approved Oct. 1, 2007. Published October 2007. Originally
chemical composition, tensile and elongation properties, bend-
approved in 1963. Last previous edition approved in 2002 as B398 – 02. DOI:
10.1520/B0398_B0398M-02R07. ing properties, and electrical resistivity prescribed in this
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
specification.
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.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., Available from National Technical Information Service (NTIS), 5285 Port
4th Floor, New York, NY 10036, http://www.ansi.org. Royal Rd., Springfield, VA 22161, http://www.ntis.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B398/B398M−02 (2007)
TABLE 2 Tensile Requirements
6. Chemical Composition
Tensile Strength, min Elongation in 10
6.1 The wire shall be made from aluminum alloy 6201 as
Diameter, in. (mm) Average Individual in. (250 mm) for
designated in ANSI H35.1 and H35.1M. The material shall
for a lot Tests Individual Tests,
Over Through ksi (MPa) ksi (MPa) min, %
conform to the chemical composition prescribed in Table 1.
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
7. Tensile Properties
7.1 The heat-treated, drawn, and artificially aged wire when
A
sampledinaccordancewithSection14ofthisspecificationand
TABLE 3 Equivalent Resistivity Values at 20°C (68°F)
A
tested in accordance withTest Methods B557 and B557M shall
Resistivity Constants
Volume Conductivity
Material Volume
conform to the tensile requirements prescribed in Table 2
% IACS
Ω·cmil/ft (Ω·mm /m)
(Explanatory Note 3).
Copper 100 10.371 (0.017241)
Aluminum 61.0 17.002 (0.028265)
7.2 When requested by the purchaser, tension tests shall be
53.5 19.385 (0.032227)
madeonspecimensofheat-treated,drawn,andartificiallyaged
52.5 19.755 (0.032841)
wirecontainingjointsmadeinthewireafterheattreatmentand
A
The equivalent resistivity values for 100 % IACS (soft copper) were each
prior to final drawing. Such tests shall show not less than 90 % 1
computed from the fundamental IEC value ( ⁄58Ω·mm m) using conversion factors
each accurate to at least seven significant figures. Corresponding values for other
of the minimum strength specified in Table 2 for individual
conductivities (aluminum) were derived from these by multiplying by the reciprocal
test.
of the conductivity ratios accurate to at least seven significant figures.
7.3 When requested by the purchaser, tension tests shall be
madeonspecimensofheat-treated,drawn,andartificiallyaged
wire containing joints made in the finished wire or during the
10. Density
final drawing as permitted in 12.2. Such tests shall show the
10.1 For the purpose of calculating mass, mass per unit
tensile strength to be not less than 42 ksi (290 MPa) for
length, mass cross sections, etc., the density of aluminum-alloy
cold-pressure welds and for electric-butt, cold-upset welds and
3 3
6201 shall be taken as 2690 kg/m (0.097 lb/in. ) at 20°C.
not less than 15 ksi (100 MPa) for electric-butt welds.
Electric-butt welds in addition shall show a minimum elonga-
11. Diameter and Permissible Variations
tion of 6 % in 10 in. (250 mm).
11.1 The diameter of the wire shall be expressed in decimal
8. Bending Properties
fractions of an inch using four places of decimals or in
8.1 The wire shall be free of brittleness as evidenced by its millimetres using two places of decimals.
ability to be coiled or looped around its own diameter either
11.2 Ten percent, but not less than five coils or spools (or all
with or without a mandrel. No fracture shall occur. Slight
if the lot is less than five) from any lot of wire shall be gaged
surface checks shall not constitute cause for rejection.
at three places. If the material is in coil form, one gaging shall
8.2 Any coil or reel may be tested in accordance with 8.1,
be made near each end and one near the middle.
but the frequency of production sampling and testing shall be
11.3 The permissible variations in diameter are as follows:
by agreement between the manufacturer and the purchaser.
Permissible Variations of Mean
Diameter from Specified Diameter,
9. Resistivity
Specified Diameter, in. (mm) plus and minus
0.1878 to 0.1000 1%
9.1 Electrical resistivity, determined on samples selected in
(4.75 to 2.55), incl
accordance with Section 14 of this specification and tested in
Under 0.1000 to 0.0612 0.0010 in. (0.03 mm)
accordance with Test Method B193, shall not exceed 0.032841 (2.55 to 1.50), incl
Ω·mm /m at 20°C (68°F) (Explanatory Note 2 and Table 3).
12. Joints
A
12.1 Unless otherwise specified at the time of placing the
TABLE 1 Chemical Requirements
order, wire shall be supplied in one continuous length of reel,
Element Composition, %
coil, or spool. Joints may be made in the drawing stock or wire
Copper, max 0.10
Iron, max 0.50
after heat treatment and prior to final drawing by electric-butt
Silicon 0.50–0.9
welding, by cold-pressure welding, or by electric-butt, cold-
Manganese, max 0.03
upset welding in accordance with good commercial practice.
Magnesium 0.6–0.9
Zinc, max 0.10
Unless otherwise specified, no joints shall be made during final
Chromium, max 0.03
drawing or in the finished wire.
Boron, max 0.06
Other elements, each, max 0.03
12.2 If agreed upon between the manufacturer and the
Other elements, total, max 0.10
purchaser, joints may be made during final drawing or in the
Aluminum remainder
finished wire by cold-pressure welding, by electric-butt, cold-
A
Analysis shall regularly be made only for the elements specified in this table.
If, however, the presence of other elements is suspected or indicated in amounts upset welding, or by electric-butt welding. Following welding,
greater than the specified limits, further analysis shall be made to determine that
electric-butt welds shall be annealed for a distance of at least
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.