Graphite Rods



What are Solid Graphite Rods?

Solid graphite rods are machined from blocks of graphite for use in various industries and applications. Our office stocks standard sizes manufactured and machined from Extruded Graphite. The two types offered are JC3 and JC4.

Additionally, if a custom size or different grade of graphite is needed for your application such as Isographite, please contact us for a quote.

What is the difference between JC3 and JC4?

JC3 is a dense fine grained rod that is machinable and rated to a high temperature (2400℃ Heat Treating). It’s properties allow for good electrical conductivity and typically used for electrochemical applications.

JC4 is a strong fine grained rod that is machinable and rated to a medium temperature (735℃ Heat Treating). It’s properties allow for good density and strength when higher temperature are not required. Typically these rods are used for mechanical applications.

Benefits

  • Machinability to exceptionally close tolerances.
  • Good Thermal Conductivity as graphite is an excellent heat conductor and has great resistance to thermal shock.
  • High Compressive Strength ranging from 11K-38K lbs/in²
  • Corrosion Resistance for all practical purposes and is unaffected by most acids, alkalis, solvents, and similar chemicals.
  • Seal face flatness due to the high modulus of elasticity and stability to remain flat during operation at the rubbing faces.
  • Built-in Lubrications and Non-Galling. Products will not seize or gall in the most severe applications as the molecular structure of graphite forms an extremely thin film on moving parts.
  • Porosity. Graphite can be porous but impregnants are used to fill these pores and can range from high to totally impervious depending on need. Check out our GraphiSeal.

Applications

  • Heat Treating applications.
  • Used to support hearth rails or beams to allow for thermal expansion.
  • Fixtures or support post.
  • Electrodes, stir sticks, and other reaction purposes.

Useful Charts

Graphite Solid Rod Properties
Properties Units JC4 Carbon JC3 Graphite
Bulk Density gm/cm³
lbs/ft³
1.68
105
1.72
107
Grain Size µm
inches
200
0.008
200
0.008
Scleroscope Hardness Shore D 60 40
Specific Resistance µ ohm-cm
ohm-in
2290
0.0009
1140
0.00045
Flexural Strength MPa
psi
31
4500
29
4200
Compressive Strength MPa
psi
75
10,800
61
8,820
Tensile Strength MPa
psi
14
2,025
13
1,890
Thermal Conductivity W/mk
BTU/ft²/hr/℉
57
33
114
66
Coefficient of Thermal Expansion
WG (With Grain)
AG (Against Grain)
 
℃ | ℉
℃ | ℉
 
3.75 x 10 -6 | 2.09 x 10 -6
6.60 x 10 -6 | 3.69 x 10 -6
 
2.25 x 10 -6 | 1.26 x 10 -6
3.09 x 10 -6 | 1.73 x 10 -6
Ash Maximum ppm 2500 300
Total Porosity % 15 % 15-20 %
Max Operating Temp
In Vacuum
In Air
 
℃ | ℉
℃ | ℉
 
3000 | 5432
  260 |  500
 
3000 | 5432
  538 | 1000
Manufactured Process - Extruded Extruded
Composition - Carbon Graphite Graphite
Graphite Solid Rods Info & Pricing
Diameter
Inches
Length
Inches
JC3
Price
JC4
Price
1/8" 12" $4.20 $2.40
5/32" 12" $4.40 $2.60
3/16" 12" $4.60 $3.00
1/4" 12" $5.00 $3.60
5/16" 12" $6.00 $4.00
3/8" 12" $8.00 $6.00
1/2" 12" $11.00 $8.00
5/8" 12" $16.00 $12.00
3/4" 12" $20.00 $16.00
7/8" 12" $24.00 $20.00
1" 12" $32.00 $24.00
1-1/8" 12" $48.00 $36.00
1-1/4" 12" $52.00 $40.00
1-1/2" 12" $60.00 $46.00
1-3/4" 12" $84.00 $50.00
2" 12" $90.00 $62.00
1/2" 24" $30.00 $22.00
5/8" 24" $40.00 $30.00
3/4" 24" $50.00 $36.00
7/8" 24" $60.00 $44.00
1" 24" $82.00 $50.00
1-1/8" 24" $90.00 $64.00
1-1/4" 24" $100.00 $70.00
1-1/2" 24" $120.00 $90.00
1-3/4" 24" $160.00 $100.00
2" 24" $180.00 $120.00
2-1/4" 24" $200.00 $144.00
2-1/2" 24" $240.00 $168.00
$100 Minimum Order Quantity for rods.
Need a custom size? Contact us for a quote.

Ready to order?

If you have any additional questions or need a custom quote our team is always available to help.

Downloadables

Graphite Rods TDS