|
Graphite Tubes - Standerd Sizes
& Characteristics
| GRADE |
GMT |
| Nominal
Size |
|
|
|
|
| Inches |
Millimeters |
Approx
Weight |
Tolerance |
Ovalisation |
Eccentricity |
| Ø |
Length |
Ø |
Length |
Lbs |
Kgs |
on
Ø |
(d2-d1) |
(e2-e1) |
| OD
1.1/4 X ID 7/8 |
108 |
32/32 |
2740 |
5.06 |
2.3 |
±
3% |
0.50 |
0.50 |
| OD
1.1/2 X ID 1 |
108 |
38/25 |
2740 |
8 |
3.6 |
±
3% |
0.55 |
0.55 |
| OD
2 X ID 1/2 |
72 |
50/13 |
1800 |
15.8 |
7.2 |
±
3% |
0.75 |
0.75 |
| OD
2 X ID 1/2 |
84 |
50/13 |
2135 |
17.6 |
8 |
±
3% |
0.75 |
0.75 |
| OD
2 X ID 1/2 |
96 |
50/13 |
2400 |
21 |
9.55 |
±
3% |
0.75 |
0.75 |
| OD
2 X ID 1/2 |
108 |
50/13 |
2740 |
23.7 |
10.77 |
±
3% |
0.75 |
0.75 |
| OD
2 X ID 1.1/2 |
108 |
50/38 |
2740 |
10.1 |
4.6 |
±
3% |
0.75 |
0.75 |
| OD
3 X ID 3/4 |
72 |
75/19 |
1800 |
31.9 |
14.5 |
±
3% |
0.75 |
0.75 |
| OD
3 X ID 3/4 |
96 |
75/19 |
2400 |
42.46 |
19.3 |
±
3% |
0.75 |
0.75 |
| |
|
|
|
|
|
|
|
|
Typical Physical
Properties
| |
|
(Metric
Units) |
| Grade |
|
GMT |
| Max.
Particle Size, mm |
|
0.25 |
| Apparent
Density, g/cc, Min |
|
1.66 |
| Porosity, % |
|
18 |
| Electrical
Resistivity, µ ohm-m |
WG |
8.0 |
| Modulus of
Rupture, N/mm2 |
WG |
22 |
| Tensile
Strength, N/mm2 |
WG |
13 |
| CCS, N/mm2 |
WG |
32 |
| MOE, x103N/mm2 |
WG |
11 |
| Thermal
Conductivity, W/mºC |
AG |
67 |
| CTE, x10-7/ºC |
WG |
10 |
| |
|
|
| |
|
(British
Units) |
| Grade |
|
GMT |
| Max.
Particle Size, inch |
|
0.01 |
| Apparent
Density, lb/ft3 |
|
103.6 |
| Porosity,
% |
|
18 |
| Electrical
Resistivity, x10-5.ohm.in |
WG |
31.49 |
| Modulus of
rupture, psi |
WG |
3191 |
| Tensile
Strength, psi |
WG |
1885 |
| Compressive
Strength, psi |
WG |
4641 |
| Modulus of
Elasticity, x10-6psi |
WG |
1.59 |
| Thermal
Conductivity, BTU/ft.hr.°F |
AG |
38.72 |
| CTE, x10-7/°F |
WG |
5.5 |
|
|
