ASTM B230/B230M-07(2012)
(Specification)Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes
Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes
ABSTRACT
This specification covers the standard requirements for aluminum 1350-H19, extra hard, round wire for electrical purposes. The aluminum wire shall be made from drawing stock and shall be free of brittleness as evidenced by its ability to be coiled or looped around its own diameter with or without a mandrel. Joints may also be made during the final drawing or in the finished wire by electric-butt welding, cold-pressure welding, or electric-butt, cold-upset welding. Tension tests shall be performed; wherein, the wire shall conform to the tensile strength, elongation, and bending specifications. The specimen shall also conform to the electrical resistivity requirements.
SCOPE
1.1 This specification covers aluminum 1350–H19 (extra hard) round wire for electrical purposes.
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.Note 1—Prior to 1975 aluminum 1350 was designated EC aluminum.Note 2—The aluminum and temper designations conform to ANSI H35.1/H35.1M. 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 Terminology B354.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:B230/B230M −07(Reapproved 2012)
Standard Specification for
Aluminum 1350–H19 Wire for Electrical Purposes
This standard is issued under the fixed designation B230/B230M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope B830 Specification for Uniform Test Methods and Fre-
quency
1.1 This specification covers aluminum 1350–H19 (extra
E527 Practice for Numbering Metals and Alloys in the
hard) round wire for electrical purposes.
Unified Numbering System (UNS)
1.2 The values stated in inch-pound or SI units are to be
2.3 ANSI Standard:
regarded separately as standard. The values in each system are
ANSI H35.1 American National Standard for Alloy and
not exact equivalents; therefore, each system shall be used 3
Temper Designations Systems for Aluminum
independently of the other. Combining values from the two
ANSI H35.1M American National Standard for Alloy and
systems may result in nonconformance with the specification. 3
Temper Systems for Aluminum [Metric]
1.2.1 For density, resistivity, and temperature, the values
2.4 NIST Document:
stated in SI units are to be regarded as standard.
NBS Handbook 100–Copper Wire Tables
NOTE 1—Prior to 1975 aluminum 1350 was designated EC aluminum.
3. Terminology
NOTE 2—The aluminum and temper designations conform to ANSI
H35.1/H35.1M. Aluminum 1350 corresponds to UNS A91350 in accor-
3.1 Definitions of Terms Specific to This Standard:
dance with Practice E527.
3.1.1 lot—a group of production units, up to 30 000 lb
NOTE 3—For definitions of terms found in this specification relating to
uninsulated electrical conductors see Terminology B354. [15 000 kg] of mass, of one type and size of wire, which was
produced during the same time period, under similar produc-
2. Referenced Documents
tion conditions, and is presented for acceptance at the same
time (Explanatory Note 1 and Note 2).
2.1 The following documents of the issue in effect on the
date of material purchase form a part of this specification to the 3.1.2 production unit—a coil, reel, spool, or other package
extent referenced herein. of wire that represents a single usable length.
2.2 ASTM Standards: 3.1.3 sample—the production unit or units from which a test
specimen or specimens has been removed, and which is
B193 Test Method for Resistivity of Electrical Conductor
Materials considered to have properties representative of the lot.
B233 Specification for Aluminum 1350 Drawing Stock for
3.1.4 specimen—a length of wire removed for test purposes.
Electrical Purposes
4. Ordering Information
B354 Terminology Relating to Uninsulated Metallic Electri-
cal Conductors
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 (see 11.1 and Table 1 or Table 2),
Aluminum- and Magnesium-Alloy Products (Metric)
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),
4.1.5 Special jointing procedures, if permitted (see 12.2),
This specification is under the jurisdiction of ASTM Committee B01 on
4.1.6 Place of inspection (see 15.2),
Electrical Conductorsand is the direct responsibility of Subcommittee B01.07 on
4.1.7 Package size and type (see 16.1), and
Conductors of Light Metals.
4.1.8 Special package marking, if required (see 16.4).
Current edition approved Oct. 15, 2012. Published November 2012. Originally
approved in 1948. Last previous edition approved in 2007 as B230/B230M – 07.
DOI: 10.1520/B0230_B0230M-07R12.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036, http://www.ansi.org.
Standards volume information, refer to the standard’s Document Summary page on Available from National Institute of Standards and Technology (NIST), 100
the ASTM website. Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
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B230/B230M−07 (2012)
TABLE 1 Tensile Strength and Elongation Requirements
6. Workmanship, Finish, and Appearance
Elongation in 10 in., min
Tensile Strength, min ksi 6.1 The wire shall be free of imperfections not consistent
(%)
Diameter, in.
with good commercial practice.
Average for Individual Average for Individual
A
a Lot Tests a Lot Tests
7. Tensile Properties
0.0105 to 0.0500 25.0 23.0 . . . . . .
0.0501 to 0.0600 29.0 27.0 1.4 1.2
7.1 Tensile Strength and Elongation—The wire shall con-
0.0601 to 0.0700 28.5 27.0 1.5 1.3
form to the tensile strength and elongation requirements set
0.0701 to 0.0800 28.0 26.5 1.6 1.4
forth in Table 1 or Table 2 (Explanatory Note 3).
0.0801 to 0.0900 27.5 26.0 1.6 1.5
0.0901 to 0.1000 27.0 25.5 1.6 1.5
7.2 When requested by the purchaser, tension tests shall be
0.1001 to 0.1100 26.0 24.5 1.6 1.5
0.1101 to 0.1200 25.5 24.0 1.7 1.6 made of specimens of wire containing joints made in the
0.1201 to 0.1400 25.0 23.5 1.8 1.7
drawing stock or in the wire prior to final drawing. Such tests
0.1401 to 0.1500 24.5 23.5 1.9 1.8
shall indicate tensile strengths not less than 90 % of the values
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 for individual tests shown in Table 1 or Table 2.
0.2101 to 0.2600 23.5 22.5 2.3 2.2
7.3 When requested by the purchaser, tension tests of
A
For wire diameters within 0.0501 to 0.2600 in., the minimum average tensile
specimens containing joints in the finished wire, or in the final
strength for a lot may be estimated from the following logarithmic equation for
process control purposes to meet the requirements of this specification: Tensile
drawing, if permitted, shall be made. Such tests shall indicate
strength,ksi=17.40–3.84×ln(diameterofwire,in.).Requirementsstatedinthe
tensile strengths to be not less than 11.0 ksi [145 MPa] for
table are to be used for all other purposes.
electric-butt welded joints, and not less than 21.0 ksi [75 MPa]
for cold-pressure welded joints and electric-butt, cold-upset
welded joints.
TABLE 2 Tensile Strength and Elongation Requirements
Elongation in 250 mm, min
Tensile Strength, min MPa 8. Bending Properties
(%)
Diameter, mm
Average for Individual Average for Individual
8.1 The wire shall be free of brittleness as evidenced by its
A
a Lot Tests a Lot Tests
ability to be coiled or looped around its own diameter with or
0.227 to 1.25 170.0 160.0 . . . . . .
without a mandrel. No fracture shall occur. Slight surface
1.26 to 1.50 200.0 185.0 1.4 1.2
1.51 to 1.75 195.0 185.0 1.5 1.3
checks shall not constitute cause for rejection.
1.76 to 2.00 195.0 185.0 1.6 1.4
2.01 to 2.25 190.0 180.0 1.6 1.5
9. Resistivity
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
9.1 The electrical resistivity shall not exceed the values
2.76 to 3.00 175.0 165.0 1.7 1.6
shown in Table 3 (Explanatory Note 4).
3.01 to 3.50 170.0 160.0 1.8 1.7
3.51 to 3.75 170.0 160.0 1.9 1.8
10. Density
3.76 to 4.50 165.0 160.0 2.0 1.9
4.51 to 5.25 165.0 160.0 2.1 2.0
10.1 For the purpose of calculating linear density, cross
5.26 to 6.50 160.0 155.0 2.3 2.2
section, and so forth, the density of aluminum 1350 shall be
A
Forwirediameterswithin1.26to6.50mmtheminimumaveragetensilestrength
3 3
for a lot may be estimated from the following logarithmic equation for process taken as 2705 kg/m [0.0975 lb/in. ] at 20°C [68°F].
control purposes to meet the requirements of this specification: Tensile Strength,
MPa = 205.88 – 27.14 × ln (diameter of wire, mm). Requirements stated in the
11. Diameter
table are to be used for all other purposes.
11.1 The diameter of the wire shall be specified in inches to
the nearest 0.0001 in. or the diameter of the wire shall be
specified in millimetres to the nearest 0.001 mm for wires less
than 1.000 mm in diameter, and to the nearest 0.01 mm for
5. Materials and Manufacture
wires1.00mmindiameterandlarger.Theactualwirediameter
5.1 The aluminum wire shall be made from drawing stock
shall not vary from the specified diameter by more than the
meeting the requirements of Specification B233. values shown in Table 4.
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
Ω·mm /m µΩin. µΩ·cm Ω·cmil/ft Ω·lb/mile Ω·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 Ω·mm /m) using conversion factors each
accuratetoatleastsevensignificantfigures.Correspondingvaluesforaluminumconductivitieswerederivedfromthesebymultiplyingbythereciprocaloftheconductivity
ratios and, where applicable, also by the density ratios, both accurate to at least seven significant figures.
B230/B230M−07 (2012)
TABLE 4 Diameter Tolerances
area of the specimen, with the tensile stress to be expressed in
Permissible Variations of the Mean ksi [MPa]. Elongation is the percent increase in length of the
Specified Diameter
Diameter from the Specified Diameter,
tensile test specimen as measured between gage marks origi-
in. mm
Plus and Minus
nally spaced 10 in. [250 mm] apart on the specimen. Elonga-
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
tion measurements are not required for wires <0.0500 in.
0.1000 to 0.2600 3.00 and over 1.0 % 1.0 %
[<1.25 mm] in diameter. Should any part of the fracture take
placeoutsidetheelongationgagelines,orifexaminationofthe
tensile specimen indicates a flaw, the values obtained may not
12. Joints be representative and a test on another section of the specimen
may be run (Explanatory Note 6).
12.1 No joints shall be made in the finished wire except as
provided in 12.2. Joints may be made in the drawing stock and
14.4 Determine the electrical resistivity in accordance with
in the wire prior to final drawing and shall be in accordance
Test Method B193.
with good com
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