Cart
Cart

Graphite Materials

At Ohio Carbon Blank we offer a variety of graphite materials for use in many industries.

All Materials Table:

Material Grade:

Material Class:

Material Name:
Material Grade:
Material Class:
Particle Size:
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Coefficient of Thermal Expansion
Young's Modulus
AR-06
EDM Grade
Fine
.00047"
1.78 g/cm³
55
6,500 lbs/in²
14,300 lbs/in²
4,200 lbs/in²
539 µΩ-inch
102.0 W/m·ºK
2.89 x 10-6/°F
9.8 GPa
AR-08
EDM Grade
Fine
.00043"
1.81 g/cm³
65
7,500 lbs/in²
16,500 lbs/in²
4,250 lbs/in²
488 µΩ-inch
103.8 W/m·ºK
2.94 x 10-6/°F
10.6 GPa
AR-12
EDM Grade
Superfine
.00035"
1.83 g/cm³
65
8,000 lbs/in²
18,400 lbs/in²
5,000 lbs/in²
480 µΩ-inch
112.4 W/m·ºK
3.28 x 10-6/°F
10.1 GPa
AR-14
EDM Grade
Ultra Fine
.00020"
1.86 g/cm³
80
11,000 lbs/in²
24,200 lbs/in²
7,200 lbs/in²
539 µΩ-inch
102.0 W/m·ºK
3.33 x 10-6/°F
12.9 GPa
AR-200
EDM Grade
Superfine
.00028"
1.78 g/cm³
60
8,700 lbs/in²
18,000 lbs/in²
5,200 lbs/in²
500 µΩ-inch
100.3 W/m·ºK
3.06 x 10-6/°F
9.5 GPa
DS-4
EDM Grade
Ultra Fine
.00016"
1.88 g/cm³
72
13,000 lbs/in²
27,265 lbs/in²
7,500 lbs/in²
500 µΩ-inch
105.0 W/m·ºK
4.00 x 10-6/°F
15.2 GPa
DS-4C
EDM Grade
Ultrafine
0.00016"
3.00 g/cm³
75
19,000 lbs/in²
28,000 lbs/in²
N/A
150 μΩ-inch
330.0 W/m·°K
4.17 x10-6 /°F
N/A
EDM-1®
EDM Grade
Ultra Fine
.00020"
1.66 g/cm³
69
9,700 lbs/in²
14,200 lbs/in²
6,000 lbs/in²
760 µΩ-inch
N/A
N/A
N/A
EDM-3®
EDM Grade
Ultra Fine
.00020"
1.81 g/cm³
73
13,000 lbs/in²
18,100 lbs/in²
8,000 lbs/in²
615 µΩ-inch
N/A
N/A
N/A
EDM-AF5®
EDM Grade
Angstrofine
.00004"
1.80 g/cm³
83
14,500 lbs/in²
22,100 lbs/in²
8,500 lbs/in²
850 µΩ-inch
N/A
N/A
N/A
EDM-C3®
EDM Grade
Ultra Fine
.00020"
3.05 g/cm³
66
20,300 lbs/in²
28,350 lbs/in²
12,500 lbs/in²
127 µΩ-inch
N/A
N/A
N/A
UT-3
Non-EDM
Fine
.00047"
1.78 g/cm³
62
6,500 lbs/in²
14,300 lbs/in²
4,200 lbs/in²
539 µΩ-inch
102.0 W/m·°K
2.89 x 10-6/°F
9.8 GPa
UT-2E
Non-EDM
Coarse
.03000"
1.72 g/cm³
40
2,450 lbs/in²
5,450 lbs/in²
1,950 lbs/in²
320 µΩ-inch
133.2 W/m·°K
1.50 x 10-6/°F
N/A
CC1940
Non-EDM
Fine
.00051"
1.79 g/cm³
63
6,300 lbs/in²
13,000 lbs/in²
3,800 lbs/in²
520 µΩ-inch
95.1 W/m·ºK
2.39 x 10-6/°F
9.2 GPa
Material Name:
Material Grade:
Material Class:
Particle Size:
AR-06
EDM Grade
Fine
.00120 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
1.03 oz/in³
55
44.8 MPA (N/mm²)
98.6 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
25.4 MPA (N/mm²)
539 µΩ-inch
81.7 kcal/hr·m·ºC
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
AR-08
EDM Grade
Fine
.00120 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
1.04 oz/in³
65
51.7 MPA (N/mm²)
113.8 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
29.3 MPA (N/mm²)
488 µΩ-inch
89.3 kcal/hr·m·ºC
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
AR-12
EDM Grade
Superfine
.00090 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
1.05 oz/in³
65
55.0 MPA (N/mm²)
127.0 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
34.5 MPA (N/mm²)
480 µΩ-inch
96.7 kcal/hr·m·ºC
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
AR-14
EDM Grade
Ultra Fine
.00050 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
1.08 oz/in³
80
76.0 MPA (N/mm²)
167.0 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
49.6 MPA (N/mm²)
500 µΩ-inch
87.8 kcal/hr·m·ºC
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
AR-200
EDM Grade
Superfine
N/A
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
N/A
60
56 MPA (N/mm²)
118 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
N/A
N/A
N/A
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
DS-4
EDM Grade
Ultra Fine
.00040 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
1.09 oz/in³
72
90.0 MPA (N/mm²)
188.0 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
55.0 MPA (N/mm²)
500 µΩ-inch
N/A
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
DS-4C
EDM Grade
Ultrafine
0.00016"
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
3.00 g/cm³
75
19,000 lbs/in²
28,000 lbs/in²
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
N/A
150 μΩ-inch
330.0 W/m·°K
4.17 x10-6 /°F
Young's Modulus
N/A
Material Name:
Material Grade:
Material Class:
Particle Size:
EDM-1®
EDM Grade
Ultra Fine
.00049 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
N/A
69
66.9 MPA (N/mm²)
97.9 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
42.0 MPa
760 µΩ-inch
N/A
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
EDM-3®
EDM Grade
Ultra Fine
.00049 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
N/A
73
91.7 MPA (N/mm²)
124.8 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
57.0 MPa
615 µΩ-inch
N/A
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
EDM-AF5®
EDM Grade
Angstrofine
.00010 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
N/A
83
100.0 MPA (N/mm²)
152.4 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
60.0 MPa
850 µΩ-inch
N/A
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
EDM-C3®
EDM Grade
Ultra Fine
.00049 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
N/A
66
140.0 MPA (N/mm²)
195.5 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
86.2 MPa
127 µΩ-inch
N/A
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
UT-3
Non-EDM
Fine
.00432 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
1.03 oz/in³
62
40.0 MPA (N/mm²)
75.8 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
24.8 MPA (N/mm²)
453 µΩ-inch
95.2 kcal/hr·m·ºC
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
UT-2E
Non-EDM
Coarse
.08000 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
0.99 oz/in³
40
15.9 MPA (N/mm²)
35.2 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
13.1 MPA (N/mm²)
315 µΩ-inch
137.7 kcal/hr·m·ºC
Young's Modulus
Material Name:
Material Grade:
Material Class:
Particle Size:
CC1940
Non-EDM
Fine
.00130 cm
Apparent Density:
Shore Hardness:
Flex Strength:
Comp Strength:
1.03 oz/in³
63
43.0 MPa
98.6 MPa
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity
Thermal Expansion
26.2 MPa
520 µΩ-inch
 81.8 kcal/hr·m·ºC
Young's Modulus
Material Name:
Material Grade:
AR-06
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Fine
.00120 cm
1.03 oz/in³
Shore Hardness:
Flex Strength:
Comp Strength:
55
44.8 MPA (N/mm²)
98.6 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
25.4 MPA (N/mm²)
539 µΩ-inch
81.7 kcal/hr·m·ºC
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
AR-08
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Fine
.00120 cm
1.04 oz/in³
Shore Hardness:
Flex Strength:
Comp Strength:
65
51.7 MPA (N/mm²)
113.8 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
29.3 MPA (N/mm²)
488 µΩ-inch
89.3 kcal/hr·m·ºC
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
AR-12
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Superfine
.00090 cm
1.05 oz/in³
Shore Hardness:
Flex Strength:
Comp Strength:
65
55.0 MPA (N/mm²)
127.0 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
34.5 MPA (N/mm²)
480 µΩ-inch
96.7 kcal/hr·m·ºC
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
AR-14
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Ultra Fine
.00050 cm
1.08 oz/in³
Shore Hardness:
Flex Strength:
Comp Strength:
80
76.0 MPA (N/mm²)
167.0 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
49.6 MPA (N/mm²)
500 µΩ-inch
87.8 kcal/hr·m·ºC
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
AR-200
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Superfine
N/A
N/A
Shore Hardness:
Flex Strength:
Comp Strength:
60
56 MPA (N/mm²)
118 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
N/A
N/A
N/A
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
DS-4
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Ultra Fine
.00040 cm
1.09 oz/in³
Shore Hardness:
Flex Strength:
Comp Strength:
72
90.0 MPA (N/mm²)
188.0 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
55.0 MPA (N/mm²)
500 µΩ-inch
N/A
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
DS-4C
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Ultrafine
0.00016"
3.00 g/cm³
Shore Hardness:
Flex Strength:
Comp Strength:
75
19,000 lbs/in²
28,000 lbs/in²
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
N/A
150 μΩ-inch
330.0 W/m·°K
Thermal Expansion:
Young's Modulus:
4.17 x10-6 /°F
N/A
Material Name:
Material Grade:
EDM-1®
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Ultra Fine
.00049 cm
N/A
Shore Hardness:
Flex Strength:
Comp Strength:
69
66.9 MPA (N/mm²)
97.9 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
42.0 MPa
760 µΩ-inch
N/A
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
EDM-3®
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Ultra Fine
.00049 cm
N/A
Shore Hardness:
Flex Strength:
Comp Strength:
73
91.7 MPA (N/mm²)
124.8 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
57.0 MPa
615 µΩ-inch
N/A
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
EDM-AF5®
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Angstrofine
.00010 cm
N/A
Shore Hardness:
Flex Strength:
Comp Strength:
83
100.0 MPA (N/mm²)
152.4 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
60.0 MPa
850 µΩ-inch
N/A
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
EDM-C3®
EDM Grade
Material Class:
Particle Size:
Apparent Density:
Ultra Fine
.00049 cm
N/A
Shore Hardness:
Flex Strength:
Comp Strength:
66
140.0 MPA (N/mm²)
195.5 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
86.2 MPa
127 µΩ-inch
N/A
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
UT-3
Non-EDM
Material Class:
Particle Size:
Apparent Density:
Fine
.00432 cm
1.03 oz/in³
Shore Hardness:
Flex Strength:
Comp Strength:
62
40.0 MPA (N/mm²)
75.8 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
24.8 MPA (N/mm²)
453 µΩ-inch
95.2 kcal/hr·m·ºC
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
UT-2E
Non-EDM
Material Class:
Particle Size:
Apparent Density:
Coarse
.08000 cm
0.99 oz/in³
Shore Hardness:
Flex Strength:
Comp Strength:
40
15.9 MPA (N/mm²)
35.2 MPA (N/mm²)
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
13.1 MPA (N/mm²)
315 µΩ-inch
137.7 kcal/hr·m·ºC
Thermal Expansion:
Young's Modulus:
 
Material Name:
Material Grade:
CC1940
Non-EDM
Material Class:
Particle Size:
Apparent Density:
Fine
.00130 cm
1.03 oz/in³
Shore Hardness:
Flex Strength:
Comp Strength:
63
43.0 MPa
98.6 MPa
Tensile Strength:
Electrical Resistivity:
Thermal Conductivity:
26.2 MPa
520 µΩ-inch
 81.8 kcal/hr·m·ºC
Thermal Expansion:
Young's Modulus:
 

Machined-In-America

Quick Links

Partners

© 2026 Ohio Carbon Blank, Inc.