ASTM B559 - 12 Standard Specification for Nickel-Coated, Copper-Clad Steel Wire for Electronic Application

ASTM B559-12

Standard Specification for Nickel-Coated, Copper-Clad Steel Wire for Electronic Application

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1. Scope

1.1 This specification covers nickel-coated, round, copper-clad steel wire for electronic application.

1.2 Nickel coatings in mass percentages of the total mass of the coated wire are as follows: 2, 4, 7, 10, and 27 %. Nickel-coated wire having different minimum mass percentages of nickel 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.

TABLE 1 Nickel Mass Percent and Thickness of Coating

Diameter		Cross-Sectional Area at 20°C			Thickness of Nickel,μ in. (for information only)
in.	mm	cmil	in.²	mm²	2.0 %	4.0 %	7.0 %	10.0 %	27.0 %
0.0720	1.829	5 180	0.00407	2.63	334	637	1 181	1 703	4 892
0.0641	1.628	4 110	0.00323	2.08	298	566	1 050	1 514	4 349
0.0571	1.450	3 260	0.00256	1.65	266	505	936	1 350	3 880
0.0508	1.290	2 580	0.00203	1.31	236	450	833	1 200	3 452
0.0453	1.151	2 050	0.00161	1.04	211	401	743	1 071	3 077
0.0403	1.024	1 620	0.00128	0.823	202	357	661	953	2 738
0.0359	0.912	1 290	0.00101	0.653	167	318	589	849	2 439
0.0320	0.813	1 020	0.000804	0.519	149	283	525	757	2 174
0.0285	0.724	812	0.000638	0.412	133	252	467	686	1 937
0.0253	0.643	640	0.000503	0.324	118	224	415	598	1 719
0.0226	0.574	511	0.000401	0.259	105	200	371	535	1 536
0.0201	0.511	404	0.000317	0.205	94	178	330	475	1 366
0.0179	0.455	320	0.000252	0.162	83	158	294	423	1 216
0.0159	0.404	253	0.000199	0.128	74	141	261	376	1 080
0.0142	0.361	202	0.000158	0.102	66	126	233	336	965
0.0126	0.320	159	0.000125	0.0804	59	112	207	298	856
0.0113	0.287	128	0.000100	0.0647	53	100	185	267	768
0.0100	0.254	100	0.0000785	0.0507	47	89	164	237	680
0.0089	0.226	79.2	0.0000622	0.0401	41	80	146	211	605
0.0080	0.203	64.0	0.0000503	0.0324	...	71	131	189	544
0.0071	0.180	50.4	0.0000396	0.0255	...	63	116	168	482
0.0063	0.160	39.7	0.0000312	0.0201	...	56	103	149	428
0.0056	0.142	31.4	0.0000246	0.0159	...	50	92	132	381
0.0050	0.127	25.0	0.0000196	0.0127	...	44	82	118	340
0.0045	0.114	20.2	0.0000159	0.0103	...	40	74	106	306
0.0040	0.102	16.0	0.0000126	0.00811	...	...	66	95	272
0.0035	0.089	12.2	0.00000962	0.00621	...	...	57	83	238
0.0031	0.079	9.61	0.00000755	0.00487	...	...	51	73	211

1.3 Four classes of nickel-coated, copper-clad steel wire are covered as follows:

1.3.1 Class N30HS—Nominal 30 % conductivity, hard drawn.

1.3.2 Class N30A—Nominal 30 % conductivity, annealed.

1.3.3 Class N40HS—Nominal 40 % conductivity, hard drawn.

1.3.4 Class N40A—Nominal 40 % conductivity, annealed.

1.4 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.

1.4.1 Exception—The SI values for resistivity are to be regarded as standard.

1.5 The following safety hazards caveat pertains only to the test method described in 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. (Warning—Consideration should be given to toxicity and flammability when selecting solvent cleaners.)

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

B193 Test Method for Resistivity of Electrical Conductor Materials

B258 Specification for Nominal Diameters and Cross-Sectional Areas of AWG Sizes of Solid Round Wires Used as Electrical Conductors

B452 Specification for Copper-Clad Steel Wire for Electronic Application

E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys

American Chemical Society

Standard Reagents Tests

NIST Standard

NBS Handbook 100 Copper Wire Tables

ICS Code

ICS Number Code 29.060.10 (Wires)

UNSPSC Code

UNSPSC Code 26121520(Copper steel wire)

Referencing This Standard

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DOI: 10.1520/B0559-12

Citation Format

ASTM B559-12, Standard Specification for Nickel-Coated, Copper-Clad Steel Wire for Electronic Application, ASTM International, West Conshohocken, PA, 2012, www.astm.org