Norm

ASTM B298 - 12 en

Standard Specification for Silver-Coated Soft or Annealed Copper Wire

  • Deze norm is ingetrokken sinds 01-04-2017

50,60 61,23 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 8
Gepubliceerd op 15-11-2012
Taal Engels

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.

Details

ICS-code 77.150.30
Engelse titel Standard Specification for Silver-Coated Soft or Annealed Copper Wire
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