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Material Specifications
OHIO CARBON BLANK, INC.
** Material Specification Information **
MATERIAL
GRADE
|
PARTICLE
SIZE
|
APPARENT
DENSITY
|
SHORE
HARDNESS
|
ELECTRICAL
RESISTIVITY
|
FLEXURAL
STRENGTH
|
COMPRESSIVE
STRENGTH
|
TENSILE
STRENGTH
|
|
|
(inches)
|
(g/cm³)
|
(shore)
|
(Ω - inch)
|
(lbs/in²)
|
(lbs/in²)
|
(lbs/in²)
|
|
UT-3
|
.00040
|
1.70
|
50
|
.00053
|
5,300
|
10,000
|
3,445
|
|
AR-6
|
.00047
|
1.76
|
55
|
.00050
|
6,500
|
14,300
|
4,225
|
|
AR-8
|
.00047
|
1.80
|
65
|
.00049
|
7,500
|
16,500
|
4,875
|
|
AR-12
|
.00031
|
1.78
|
63
|
.00053
|
7,540
|
15,400
|
4,901
|
|
AR-14
|
.00019
|
1.86
|
80
|
.00050
|
11,000
|
24,200
|
7,150
|
|
TTK-4
|
.00020
|
1.78
|
72
|
.00055
|
10,600
|
19,600
|
6,890
|
|
TTK-4C
|
.00016
|
2.90
|
60
|
.00010
|
15,500
|
28,000
|
10,075
|
|
EDM-200
|
.00039
|
1.66
|
68
|
.00057
|
8,100
|
14,000
|
5,265
|
|
EDM-1
|
.00019
|
1.66
|
69
|
.00076
|
9,700
|
14,200
|
6,305
|
|
EDM-3
|
.00019
|
1.81
|
73
|
.00061
|
13,300
|
18,100
|
8,645
|
|
EDM-AF5
|
.00004
|
1.80
|
83
|
.00085
|
14,500
|
22,100
|
9,425
|
|
EDM-C3
|
.00019
|
3.05
|
66
|
.00013
|
20,300
|
28,350
|
13,195
|
|
* Please note that UT-3 is a non-EDM grade material
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GRAIN SIZES:
|
|
(ACCORDING TO POCO)
|
|
Angstrofine
|
< 1μ
|
|
Ultrafine
|
1μ - 5μ
|
|
Superfine
|
5μ - 10μ
|
|
Fine
|
10μ - 15μ
|
|
Medium
|
15μ - 20μ
|
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Coarse
|
> 20μ
|
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1 inch (in) = 25,400 micron (μ)
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