ASTM B298 : 12

Standard Specification for Silver-Coated Soft or Annealed Copper Wire

Standard Details

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)
Diameter, in.	cmils	in.²	Elongation in 10 in., min, %	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	Status : Historical Standard Type: Main Document No: ASTM B298 : 12 Document Year: 2012 Pages: 8 Section Volume: 02.03 Volume 02.03 Electrical Conductors ICS: 77.150.30 Copper products Preview Document Life Cycle Historical ASTM B298 : 12(2017) ACTIVE ASTM B298 : 12(2024) Currently Viewing Historical ASTM B298 : 12 Historical ASTM B298 : 07 Historical ASTM B298 : 99e1 Historical ASTM B298 : 99 Knowledge Corner Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information! The Corporate About BSB Edge Vision & Mission Our Journey - Milestones Our Clientele CSR Activities Contact Us Useful Links FAQ’s Privacy Policy Terms & Conditions Products & Services ASTM Book of Standards ASME BPVC 2023 ASME Boiler and Pressure Vessel Code - Revision Tracker with Synopsis (RTwS) eCatalogs / eBrochures Free Downloads Standards By Publisher ACI Standards AFNOR Standards AIAG Standards API Standards ASM Standards ASME Standards ASNT Standards ASTM Standards AWWA Standards BIS Standards Read More Connect With US Support Desk Customer Feedback News and Events © Copyright 2024 BSB Edge Private Limited. Add Standards To Trackedge To add “” to our tracker and get updates about it as and when it changes, kindly LOGIN, REGISTER or JUST ENTER YOUR EMAIL ID in below field so that we keep you informed about changes to the standards of your interest. This document is available for free download. Free documents cannot be added to the cart. Please download the Document using this link. Enquire now + Enquiry Form Full Name E-mail Address Phone Organisation Select Enquiry Type This Website Uses Cookies to Manage Services The BSB Edge Pvt. Ltd. takes your privacy very seriously and respects the importance of security on the internet. BSB Edge websites use cookies and similar technologies for various purposes including to distinguish you from other users of our websites. By continuing to use our websites, you agree to our cookie policy. What cookies do we use? Cookies are text files containing small amounts of information. They are downloaded to your computer or device when you visit a website. They don’t tell us who you are but they do enable us to recognise your device and where you have made various preferences or actions they enable us to remember them. Why do we use cookies? Cookies do lots of different jobs, like letting you navigate between web pages efficiently, remembering your preferences, and generally improving your experience of our websites. They can also help to ensure that adverts you see online are more relevant to you and your interests. Disabling cookies BSB Edge websites are designed to function optimally with cookies enabled. You can, however, disable cookies via your website browser settings. This may mean, however, that you may no longer have access to some of our website features. Please note that even with all cookies disabled, a tiny amount of information will continue to be retrieved from your web browser. This information is necessary for the basic functioning of our website. Contact us If you have any questions about our cookie policy you can contact us at: info@bsbedge.com

ASTM B298 : 12

Standard Details

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