Grade Data

Carbon Graphite

	resistivity		shore	strength					rated current
grade	ohm-in	mohm-m	hard	psi	n/mm2	vd	cf	film#	amp/in2	amp/cm2
h	0.00110	28	55	3000	20.7	m	m	1	40	6.2
h250	0.00080	20	60	6700	46.2	m	m	1	50	7.8
h357	0.00120	30	50	2800	19.3	m	m	1	55	8.5
h422	0.01000	250	50	3600	27.9	h	l	1	60	9.3
h990	0.00270	68	70	4300	29.6	h	h	1	40	6.2
ho15	0.00080	20	35	4000	27.6	m	m	1	40	6.2
nh12	0.03200	800	45	3025	20.1	h	l	1	55	8.5
nh16	0.02000	500	25	2200	15.2	h	vl	1	55	8.5
nh4	0.00160	40	45	2500	17.2	m	l	1	50	7.8

Electrographite

	resistivity		shore	strength					rated current
grade	ohm-in	mohm-m	hard	psi	n/mm2	vd	cf	film#	amp/in2	amp/cm2
h170	0.0029	74	80	3900	26.9	h	vl	2	70	10.9
h22	0.000700	18	45	3700	25.6	l	h	2	70	10.9
h23	0.001700	43	70	4000	27.7	m	l	1	70	10.9
h24	0.001500	38	55	4100	28.4	m	l	2	80	12.4
h25	0.001200	30	65	4000	27.7	m	l	2	80	12.4
h27	0.001700	43	65	4200	29.1	h	vl	2	80	12.4
h28	0.001700	43	45	2600	17.9	m	vl	2	80	12.4
h3	0.000350	8.8	35	3100	21.5	m	vl	3	70	10.9
h34	0.002300	58	75	4400	30.3	h	l	2	80	12.4
h35	0.002300	58	50	2500	17.2	h	l	2	90	14
h36	0.002300	58	70	3300	22.8	h	vl	3	80	12.4
h37	0.001700	43	75	4900	33.9	h	vl	2	80	12.4
h38	0.002100	53	80	5400	37.2	m	vl	2	80	12.4
h39	0.001700	43	85	5400	37.2	h	vl	3	80	12.4
h41	0.002500	63	60	3000	20.7	h	vl	3	80	12.4
h4399	0.000700	18	45	3000	20.7	m	l	3	80	12.4
h43	0.001900	48	65	3700	25.5	m	l	2	90	14
h44	0.001900	48	85	5500	37.9	m	l	2	80	12.4
h4430	0.002300	58	48	2500	17.2	vh	l	3	80	12.4
h45	0.002500	63	60	3300	22.8	h	vl	3	80	12.4
h46	0.001000	25	25	1500	10.3	m	l	2	80	12.4
h47	0.002500	63	45	1800	12.4	h	l	2	80	12.4
h49	0.002500	63	50	2000	13.8	h	l	2	100	15.5
h50	0.002100	53	60	2900	20.0	m	l	2	90	14
h51	0.002300	58	60	3200	22.1	m	vl	2	80	12.4
h52	0.002300	58	60	2900	20.0	h	l	2	80	12.4
h524	0.000600	9.5	40	3300	22.8	l	h	1	75	11.6
h55	0.001100	28	50	3975	27.4	m	l	3	75	11.6
h57	0.002300	58	50	2600	17.9	m	l	2	100	15.5
h580	0.000360	9	40	3700	25.5	m	l	1	100	15.5
h61	0.000600	15	30	1500	10.3	m	vl	2	75	11.6
h74	0.003000	76	55	1800	12.4	h	vl	3	80	12.4
h76	0.003000	76	65	2400	16.6	h	l	3	80	12.4
h77	0.002600	65	45	1800	12.4	h	vl	3	80	12.4
h82	0.001500	37.5	64	5600	38.6	m	l	2	80	12.4
h83	0.001700	43	70	3000	20.7	h	l	2	80	12.4
hh	0.000600	9.5	40	3000	20.7	l	l	1	75	11.6

Graphite

	resistivity		shore	strength					rated current
grade	ohm-in	mohm-m	hard	psi	>n/mm2	vd	cf	film#	amp/in2	amp/cm2
h552	0.00050	13	15	2000	13.8	l	l	2	60	9.3
h610	0.00080	20	20	4700	32.4	m	l	2	60	9.3
h619	0.00190	48	35	4500	31.0	vh	l	3	50	7.8
h621	0.07000	1780	45	4500	31.0	vh	l	3	30	4.7
h646	0.01000	250	30	5000	34.5	h	l	1	60	9.3
h649	0.00980	245	35	2600	17.9	h	l	2	65	10.1
h651	0.01000	250	35	4300	29.6	h	l	2	55	8.5
h700	0.00040	10	25	2300	15.9	m	l	1	70	10.9
h702	0.00100	25	15	700	4.8	m	m	1	60	9.3
h704	0.00060	15	15	1000	6.9	m	l	1	60	9.3
h7240	0.17000	4250	55	4000	27.6	vh	m	2	25	3.9
k084	0.00120	30	28	3000	20.7	h	l	2	80	12.4
k094	0.05500	1400	35	2300	15.9	vh	m	2	55	8.5
k174	0.00800	200	20	1900	13.1	h	l	3	55	8.5
k194	0.00320	81	25	5000	34.5	h	l	3	55	8.5
k214	0.035	890	37	3000	20.7	vh	l	2	55	8.5
k224	0.00800	200	30	4000	27.6	vh	vl	2	55	8.5
k244	0.04000	1020	35	2600	18.0	vh	l	2	40	6.2
k254	0.00090	30	40	3500	24.2	h	l	2	80	12.4
k294	0.02500	630	35	2000	13.5	h	l	2	55	8.5

Copper Graphite

	resistivity		shore	strength					rated current
grade	ohm-in	mohm-m	hard	psi	n/mm2	vd	cf	film#	amp/in2	amp/cm2	metal%
6h1	0.000260	6.5	30	2700	18.6	m	l	1	90	15.5	30
6h2	0.000120	3	30	3700	25.5	l	l	1	110	17.1	40
6h3	0.000070	1.8	25	3200	22.1	l	l	1	120	18.6	50
6h6	0.000380	9.7	30	2500	17.2	m	l	1	90	14	15
6h7	0.000025	0.64	25	3400	23.4	l	l	1	130	20.2	65
6h8	0.000013	0.33	23	4500	31.0	vl	l	1	140	21.7	75
h670	0.000180	4.5	40	5100	35.2	l	l	2	110	17.1	40
h671	0.000250	6.3	55	6000	41.4	l	m	1	110	17.1	40
h680	0.000003	0.08	18	9300	64.1	l	l	1	150	23.3	87
h682	0.000005	0.13	25	5100	35.2	l	vl	1	140	21.7	75
h692	0.000003	0.07	18	8800	60.7	vl	l	1	160	24.8	90
h693	0.000002	0.06	20	11500	80.0	vl	l	1	175	27.1	95
h4333	0.000120	3	30	4000	27.5	vl	l	2	130	20.2	40
h4375	0.000260	6.6	30	3000	20.7	vl	l	2	110	17.1	30
k025	0.000070	1.8	25	3300	22.8	m	l	1	120	18.6	50
k045	0.000110	2.8	25	4500	31.1	l	l	2	110	17.0	40
k075	0.000260	6.6	25	4000	27.7	m	l	2	100	15.5	30
k076	0.000020	0.5	13	13000	89.6	vl	l	1	175	27.1	91
k086	0.000002	0.05	7	9000	62.1	vl	l	1	160	24.8	91
k106	0.000004	0.1	8	4000	27.7	vl	l	1	150	23.3	85
k136	0.000013	0.33	20	4800	33.1	vl	l	1	140	21.7	75
k176	0.000033	0.84	25	5000	34.5	l	l	1	130	20.2	65
k236	0.00002	0.5	20	9000	62.05	l	vl	1	150	23.3	85

Silver Graphite

	resistivity		shore	strength					rated current
grade	ohm-in	mohm-m	hard	psi	n/mm2	vd	cf	film#	amp/in2	amp/cm2	metal%
h1250	0.0001000	2.5	25	3200	22.1	vl	vl	2	140	21.7	50
h1260	0.0000060	0.16	20	5500	37.9	vl	vl	1	160	24.8	75
h2050	0.0001000	2.5	30	3000	20.7	l	vl	2	120	18.6	50
h7052	0.0000022	0.055	10	6000	41.4	vl	vl	1	200	31	90
k017	0.0000700	1.8	20	3800	26.2	vl	l	2	140	21.7	50
k037	0.0000020	0.05	6	6000	41.4	vl	l	1	200	31	91
k047	0.0003000	7.6	25	4500	31.1	l	vl	2	100	15.5	29