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ASTM International - ASTM B298-12

Standard Specification for Silver-Coated Soft or Annealed Copper Wire

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Organization: ASTM International
Publication Date: 15 November 2012
Status: inactive
Page Count: 8
ICS Code (Copper products): 77.150.30
scope:

1.1 This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment, as follows:

1.1.1 Class A-Wire whose silver coating is at least 1.25 % of the total weight of the coated wire.

1.1.2 Class B-Wire whose silver coating is at least 2.50 % of the total weight of the coated wire.

1.1.3 Class C-Wire whose silver coating is at least 4.00 % of the total weight of the coated wire.

1.1.4 Class D-Wire whose silver coating is at least 6.10 % of the total weight of the coated wire.

1.1.5 Class E-Wire whose silver coating is at least 10.00 % of the total weight of the coated wire.

1.2 Silver-coated wire having different minimum percentages of silver by weight may be obtained by mutual agreement between the manufacturer and the purchaser. For information purposes the thickness of coating in microinches provided by the percentages listed above is shown in Table 1 (Explanatory Note 1).

TABLE 1 Tensile Requirements

Diameter,
in.
Area at 20°C Elongation
in 10 in.,
min, %
Thickness of Coating, μin. (For Information Only)
cmils in.

2

Class A, 1.25
% Silver
Class B, 2.50
% Silver
Class C, 4.00
% Silver
Class D, 6.10
% Silver
Class E, 10.00
% Silver
0.1285 16 510 0.01297 30 340 680  1 090 1 659 2 720
0.1144 13 090 0.01028 30 303 605 970  1 477 2 422
0.1019 10 380 0.008155 25 270 539 864  1 316 2 157
0.0907  8 230 0.00646 25 240 480 768  1 171 1 941
0.0808  6 530 0.00513 25 214 428 684  1 043 1 710
0.0720  5 180 0.00407 25 190 381 610  930   1 524
0.0641  4 110 0.00323 25 170 339 542  828   1 357
0.0571  3 260 0.00256 25 151 302 483  737   1 209
0.0508  2 580 0.00203 25 134 269 430  656   1 075
0.0453  2 050 0.00161 25 120 240 383  585   959  
0.0403  1 620 0.00128 25 107 213 341  520   853  
0.0359  1 290 0.00101 25 95  190 304  464   760  
0.0320  1 020 0.000804 25 85  169 270  413   677  
0.0285    812 0.000638 25 75  151 241  368   603  
0.0253    640 0.000503 25 67  134 214  327   536  
0.0226    511 0.000401 25 60  120 191  292   478  
0.0201    404 0.00317 20 53  106 170  260   425  
0.0179    320 0.000252 20 47  95  151  231   379  
0.0159    253 0.000199 20 42  84  135  205   337  
0.0142    202 0.000158 20 ... 75  120  183   301  
0.0126    159 0.000125 20 ... 67  107  163   267  
0.0113    128 0.000100 20 ... 60  96   146   239  
0.0100    100 0.0000785 20 ... 53  85   129   212  
0.0089     79.2 0.0000622 15 ... 47  75   115   188  
0.0080     64.0 0.0000503 15 ... 42  68   103   169  
0.0071     50.4 0.0000396 15 ... ... 60   92    150  
0.0063     39.7 0.0000312 15 ... ... 53   81    133  
0.0056     31.4 0.0000246 15 ... ... 47   72    119  
0.0050     25.0 0.0000196 15 ... ... 42   65    106  
0.0045     20.2 0.0000159 15 ... ... ... 58    95   
0.0040     16.0 0.0000126 15 ... ... ... 52    85   
0.0035     12.2 0.00000962 15 ... ... ... 45    74   
0.0031      9.61 0.00000755 15 ... ... ... 40    66   
0.0028      7.84 0.00000616 10 ... ... ... ... 59   
0.0025      6.25 0.00000491 10 ... ... ... ... 53   
0.0022
0.0020
     4.84
     4.00
0.00000380
0.00000314
10
10
...
...
...
...
... 
...
... 
...
47   
42   
 

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3.1 Exceptions-The SI values for density, resistivity, and volume are to be regarded as standard.

1.4 The following precautionary caveat pertains only to the test method section of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements see 8.4.1.2 and Explanatory Note 2.

abstract:

This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment. The silver-coated wires are classified according to the total weight of the... View More

Document History

April 1, 2017
Standard Specification for Silver-Coated Soft or Annealed Copper Wire
1.1 This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment, as follows: 1.1.1 Class A—Wire whose silver coating is at least 1.25 % of...
ASTM B298-12
November 15, 2012
Standard Specification for Silver-Coated Soft or Annealed Copper Wire
1.1 This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment, as follows: 1.1.1 Class A—Wire whose silver coating is at least 1.25 % of...
May 15, 2007
Standard Specification for Silver-Coated Soft or Annealed Copper Wire
1.1 This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment, as follows: 1.1.1 Class A - Wire whose silver coating is at least 1.25 % of...
April 10, 1999
Standard Specification for Silver-Coated Soft or Annealed Copper Wire
1.1 This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment, as follows: 1.1.1 Class AWire whose silver coating is at least 1.25 % of...
April 10, 1999
Standard Specification for Silver-Coated Soft or Annealed Copper Wire
1.1 This specification covers silver-coated, soft or annealed, round copper wire, intended for use in electrical equipment, as follows: 1.1.1 Class A -Wire whose silver coating is at least 1.25% of...
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