ASTM B230/B230M-99
(Specification)Standard Specification for Aluminum 1350-H19 Wire for Electrical Purposes
Standard Specification for Aluminum 1350-H19 Wire for Electrical Purposes
SCOPE
1.1 This specification covers aluminum 1350-H19 (extra hard) round wire for electrical purposes. Note 1-Prior to 1975 aluminum 1350 was designated EC aluminum. Note 2-The aluminum and temper designations conform to ANSI H35.1. Aluminum 1350 corresponds to UNS A91350 in accordance with Practice E527. Note 3-For definitions of terms found in this specification relating to uninsulated electrical conductors see Definitions B354. Note 4-A complete metric companion to Specification B230 has been developed-B230M; therefore, no metric equivalents are shown in this specification with the exception of density and resistivity where the metric values are standard.
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Designation: B 230/B 230M – 99
Standard Specification for
Aluminum 1350–H19 Wire for Electrical Purposes
This standard is issued under the fixed designation B 230/B 230M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope Temper Designations Systems for Aluminum
ANSI H35.1M American National Standard for Alloy and
1.1 This specification covers aluminum 1350–H19 (extra
Temper Systems for Aluminum [Metric]
hard) round wire for electrical purposes.
2.4 NIST Document:
1.2 The values stated in inch-pound or SI units are to be
NBS Handbook 100–Copper Wire Tables
regarded separately as standard. The values in each system are
not exact equivalents; therefore, each system shall be used
3. Terminology
independently of the other. Combining values from the two
3.1 Definitions of Terms Specific to This Standard:
systems may result in nonconformance with the specification.
3.1.1 lot—a group of production units, up to 30 000 lb
1.2.1 For density, resistivity and temperature, the values
[15 000 kg] of mass, of one type and size of wire, which was
stated in SI units are to be regarded as standard.
produced during the same time period, under similar produc-
NOTE 1—Prior to 1975 aluminum 1350 was designated EC aluminum.
tion conditions, and is presented for acceptance at the same
NOTE 2—The aluminum and temper designations conform to ANSI
time (Explanatory Note 1 and Note 2).
H35.1/H35.1M. Aluminum 1350 corresponds to UNS A91350 in accor-
3.1.2 production unit—a coil, reel, spool, or other package
dance with Practice E 527.
of wire that represents a single usable length.
NOTE 3—For definitions of terms found in this specification relating to
3.1.3 sample—the production unit or units from which a test
uninsulated electrical conductors see Terminology B 354.
specimen or specimens has been removed, and which is
2. Referenced Documents
considered to have properties representative of the lot.
2.1 The following documents of the issue in effect on the 3.1.4 specimen—a length of wire removed for test purposes.
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
Materials 4.1.1 Quantity of each size,
4.1.2 Wire size (see 11.1 and Table 1 or Table 2),
B 233 Specification for Aluminum 1350 Drawing Stock for
Electrical Purposes 4.1.3 Special tension test, if required (see 7.2 and 7.3),
4.1.4 Frequency of bending test (see 8.1 and 14.5),
B 354 Terminology Relating to Uninsulated Metallic Elec-
trical Conductors 4.1.5 Special jointing procedures, if permitted (see 12.2),
4.1.6 Place of inspection (see 15.2),
B 557/B 557M Test Methods of Tension Testing Wrought
and Cast Aluminum- and Magnesium-Alloy Products 4.1.7 Package size and type (see 16.1), and
4.1.8 Special package marking, if required (see 16.4).
E 527 Practice for Numbering Metals and Alloys (UNS)
2.3 ANSI Standard:
5. Materials and Manufacture
ANSI H35.1 American National Standard for Alloy and
5.1 The aluminum wire shall be made from drawing stock
meeting the requirements of Specification B 233.
This specification is under the jurisdiction of ASTM Committee B-1 on 6. Workmanship, Finish and Appearance
Electrical Conductors and is the direct responsibility of Subcommittee B01.07 on
6.1 The wire shall be free of imperfections not consistent
Conductors of Light Metals.
with good commercial practice.
Current edition approved April 10, 1999. Published June 1999. Originally
published as B 230 – 48 T. Last previous edition B 230 – 97.
Annual Book of ASTM Standards, Vol 02.03.
3 5
Annual Book of ASTM Standards, Vol 02.02. Available from American National Standards Institute Inc., 11 West 42nd St.,
Annual Book of ASTM Standards, Vol 01.01. 13th Floor, New York, NY 10036.
Available from National Institute of Standards and Technology (NIST),
Gaithersburg, MD 20899.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
B 230/B 230M
TABLE 1 Tensile Strength and Elongation Requirements
shall indicate tensile strengths not less than 90 % of the values
Elongation in 10 in., min for individual tests shown in Table 1 or Table 2.
Tensile Strength, min ksi
(%)
7.3 When requested by the purchaser, tension tests of
Diameter, in.
Average for Individual Average for Individual
specimens containing joints in the finished wire, or in the final
A
a Lot Tests a Lot Tests
drawing, if permitted, shall be made. Such tests shall indicate
0.0105 to 0.0500 25.0 23.0 . . . . . .
tensile strengths to be not less than 11.0 ksi [145 MPa] for
0.0501 to 0.0600 29.0 27.0 1.4 1.2
electric-butt welded joints, and not less than 21.0 ksi [75 MPa]
0.0601 to 0.0700 28.5 27.0 1.5 1.3
0.0701 to 0.0800 28.0 26.5 1.6 1.4 for cold-pressure welded joints and electric-butt, cold-upset
0.0801 to 0.0900 27.5 26.0 1.6 1.5
welded joints.
0.0901 to 0.1000 27.0 25.5 1.6 1.5
0.1001 to 0.1100 26.0 24.5 1.6 1.5
8. Bending Properties
0.1101 to 0.1200 25.5 24.0 1.7 1.6
0.1201 to 0.1400 25.0 23.5 1.8 1.7
8.1 The wire shall be free of brittleness as evidenced by its
0.1401 to 0.1500 24.5 23.5 1.9 1.8
ability to be coiled or looped around its own diameter with or
0.1501 to 0.1800 24.0 23.0 2.0 1.9
0.1801 to 0.2100 24.0 23.0 2.1 2.0
without a mandrel. No fracture shall occur. Slight surface
0.2101 to 0.2600 23.5 22.5 2.3 2.2
checks shall not constitute cause for rejection.
A
For wire diameters within 0.0501 to 0.2600 in., the minimum average tensile
strength for a lot may be estimated from the following logarithmic equation for
9. Resistivity
process control purposes to meet the requirements of this specification: Tensile
strength, ksi 5 17.40 – 3.84 3 ln (diameter of wire, in.). Requirements stated in the 9.1 The electrical resistivity shall not exceed the values
table are to be used for all other purposes.
shown in Table 3 (Explanatory Note 4).
TABLE 2 Tensile Strength and Elongation Requirements
10. Density
Elongation in 250 mm, min
10.1 For the purpose of calculating linear density, cross
Tensile Strength, min MPa
(%)
section, etc., the density of aluminum 1350 shall be taken as
Diameter, mm
3 3
Average for Individual Average for Individual
2705 kg/m [0.0975 lb/in. ] at 20°C [68°F].
A
a Lot Tests a Lot Tests
0.227 to 1.25 170.0 160.0 . . . . . .
11. Diameter
1.26 to 1.50 200.0 185.0 1.4 1.2
11.1 The diameter of the wire shall be specified in inches to
1.51 to 1.75 195.0 185.0 1.5 1.3
1.76 to 2.00 195.0 185.0 1.6 1.4
the nearest 0.0001 in. or the diameter of the wire shall be
2.01 to 2.25 190.0 180.0 1.6 1.5
specified in millimetres to the nearest 0.001 mm for wires less
2.26 to 2.50 185.0 175.0 1.6 1.5
2.51 to 2.75 180.0 170.0 1.6 1.5 than 1.000 mm in diameter, and to the nearest 0.01 mm for
2.76 to 3.00 175.0 165.0 1.7 1.6
wires 1.00 mm in diameter and larger. The actual wire diameter
3.01 to 3.50 170.0 160.0 1.8 1.7
shall not vary from the specified diameter by more than the
3.51 to 3.75 170.0 160.0 1.9 1.8
3.76 to 4.50 165.0 160.0 2.0 1.9 values shown in Table 4.
4.51 to 5.25 165.0 160.0 2.1 2.0
5.26 to 6.50 160.0 155.0 2.3 2.2
12. Joints
A
For wire diameters within 1.26 to 6.50 mm the minimum average tensile
12.1 No joints shall be made in the finished wire except as
strength for a lot may be estimated from the following logarithmic equation for
provided in 12.2. Joints may be made in the drawing stock and
process control purposes to meet the requirements of this specification: Tensile
Strength, MPa 5 205.88 – 27.14 3 ln (diameter of wire, mm). Requirements stated
in the wire prior to final drawing and shall be in accordance
in the table are to be used for all other purposes.
with good commercial practice.
12.2 If agreed upon between the manufacturer and the
7. Tensile Properties
purchaser, joints may be made during the final drawing or in
7.1 Tensile Strength and Elongation—The wire shall con- the finished wire by electric-butt welding, cold-pressure weld-
form to the tensile strength and elongation requirements set ing, or electric-butt, cold-upset welding, subject to the follow-
forth in Table 1 or Table 2 (Explanatory Note 3). ing limitations.
7.2 When requested by the purchaser, tension tests shall be 12.2.1 For wire sizes from 0.0100 to 0.0555 in. [0.225 to
made of specimens of wire containing joints made in the 1.25 mm] in diameter not more than three such joints shall be
drawing stock or in the wire prior to final drawing. Such tests present in any coil, reel, or spool of the specified nominal mass.
A
TABLE 3 Electrical Resistivity Requirements at 20°C (68°F) and Equivalent Copper Resistivity
NOTE 1—The values in boldface are standard; other values are for information only.
Volume
Electrical Resistivity
Conductivity
Volume Mass
%IACS
2 2 2
V·mm /m μVin. μV·cm V·cmil/ft V·lb/mile V·g/m
Average for lot 61.2 0.028172 1.1091 2.8172 16.946 434.81 0.076149
Individual tests 61.0 0.028265 1.1128 2.8265 17.002 436.23 0.076399
Copper equivalent 100.0 0.017241 0.67879 1.7241 10.371 875.20 0.15328
A 2
The equivalent resistivity values for 100 % IACS conductivity were each computed from the fundamental IEC value ( ⁄58 V·mm /m) using conversion factors each
accurate to at least seven significant figures. Corresponding values for aluminum conductivities were derived from these by multiplying by the reciprocal of the conductivity
ratios and, where applicable, also by the density ratios, both accurate to at least seven significant figures.
B 230/B 230M
TABLE 4 Diameter Tolerances
requirements of Table 1 or Table 2 and Table 3, and the test
Permissible Variations of the Mean results of each specimen shall meet the individual tests
Specified Diameter
Diameter from the Specified Diameter,
requirements of Table 1 or Table 2 and Table 3 unless otherwise
in. mm
Plus and Minus
specified.
0.0105 to 0.0359 up to 0.999 0.0005 in. 0.010 mm
0.0360 to 0.0999 1.00 to 2.99 0.0010 in. 0.030 mm
14.6.1 If the lot average results are in conformance, and all
0.1000 to 0.2600 3.00 and over 1.0 % 1.0 %
of the individual specimen results are in conformance, the lot
shall be considered
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