ASTM Copper Class Table

PHILATRON
Stranded Soft Bare Copper Wire
PHILATRON’s Copper Wire Fabrication Operations

Designating Part Numbers: BC=Bare Copper No.=Size Letter=Class Ga.=Gauge Example: BC12K = 12 Ga. (65 x 30 Ga.) Bare Copper


ASTM Copper Class Table*

Size	Circular Mil	Outer Diameter	Lbs/1,000 feet	AA	A	B	C	D	G	H	K - 30 Ga.	M - 34 Ga.
20	1,020	.0363	3.16			7	19				10	26
18	1,620	.0456	5.02			7	19				16	41
16	2,580	.0576	7.99			7	19				26	65
14	4,110	.0726	12.68			7	19	37	49		41	104
12	6,530	.0915	20.16			7	19	37	49		65	186
10	10,380	.1160	32.06			7	19	37	49		104	259
8	16,510	.1460	51			7	19	37	49	133	168	420
6	26,240	.1840	81			7	19	37	49	133	266	665
4	41,740	.2320	129	3	7	7	19	37	49	133	420	1,064
2	66,630	.2990	205	3	7	7	19	37	49	133	665	1,666
1	83,690	.3320	259	3	7	19	37	61	133	259	836	2,107
1/0	105,600	.3730	326	7	7	19	37	61	133	259	1,064	2,646
2/0	133,100	.4190	411	7	7	19	37	61	133	259	1,323	3,325
3/0	167,800	.4700	518	7	7	19	37	61	133	259	1,666	4,256
4/0	211,600	.5280	653	7	7	19	37	61	133	259	2,107	5,320
250MCM	250,000	.5750	772	12	19	37	61	91	259	427	2,499	6,384
300MCM	300,000	.6300	925	12	19	37	61	91	259	427	2,989	7,581
350MCM	350,000	.6810	1,080	12	19	37	61	91	259	427	3,458	8,806
400MCM	400,000	.7280	1,236	19	19	37	61	91	259	427	3,990	10,101
500MCM	500,000	.8130	1,542	19	37	37	61	91	259	427	5,054	12,691
600MCM	600,000	.8930	1,850	37	37	61	91	127	427	703	5,985	14,945
750MCM	750,000	.9980	2,316	37	61	61	91	127	427	703	7,581	18,788
1,000MCM	1,000,000	1.152	3,086	37	61	61	91	127	427	703	10,101	25,193

* Note: All dimensions and weights are approximate.