Graphite rods
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Graphite rods

Graphite is the stable form of carbon. Graphite is one of the softest; diamond is one of the hardest minerals known to man. Carbon is harder than graphite. For TEM and SEM applications, graphite is recommended.Carbon /graphite films are most usable in TEM and SEM due to its value characteristics: uniformity amorphous and high transparent to electron beams. Because of low molecular weight and their unique structure (graphite have a sheet like structure, where the atoms all lie in a plane), carbon/graphite films have excellent mechanical stability, and even film thickness is about 1 - 2nm.These carbon/graphite rods are CVP (Chemical Vapour Process) purity and spectrographic grade, grade 1, produced to ASTM tolerances or even tighter as well we have a technical grade. The technical grade has a typical impurity level of 50ppm or greater. Technical grade may be used in applications of non critical SEM coating applications.Spectro-Grade Carbon Rods (graphite) have ...

Graphite is the stable form of carbon. Graphite is one of the softest; diamond is one of the hardest minerals known to man. Carbon is harder than graphite. For TEM and SEM applications, graphite is recommended.

Carbon /graphite films are most usable in TEM and SEM due to its value characteristics: uniformity amorphous and high transparent to electron beams. Because of low molecular weight and their unique structure (graphite have a sheet like structure, where the atoms all lie in a plane), carbon/graphite films have excellent mechanical stability, and even film thickness is about 1 - 2nm.

These carbon/graphite rods are CVP (Chemical Vapour Process) purity and spectrographic grade, grade 1, produced to ASTM tolerances or even tighter as well we have a technical grade. The technical grade has a typical impurity level of 50ppm or greater. Technical grade may be used in applications of non critical SEM coating applications.

Spectro-Grade Carbon Rods (graphite) have an impurity level of 2ppm or less with a maximum level element of each of 1 ppm. These rods are ideal for all TEM, SEM and all other critical applications.

Properties:

Name Carbon
Symbol C
Atomic number 6
Atomic weight 12.0107
Group number 14
Period number 2
CAS I.D. 7440-44-0
Block p-block
Specific gravity (graphite) 2.2g/cm3
Specific gravity (diamond) 3.51 g/cm3
Specific gravity (amorphous) 1.88g/cm3
m. p. sublimes ~3550°C
Boiling point 4200°C
Evaporation Temp (at which a substance has a vapour pressure of 1.33 x 10-2 mbar) 2400°C
Density 1.85g/cc
Shore Scleroscope Hardness 45
Resistivity Ohms-in 4.0 x 104
Ash Content <2 ppm
Flexural Strength 8000lb/in2
Porosity 16.5%
Updated: 03-01-2025
Code Title Size Pack Size Availability Price Updated: 03-01-2025
EMS70200 Graphite rods 3.2mm dia. x 305mm Pack/12 0 in stock (?) $170.00 AUD
EMS70230 Graphite rods 6.35mm dia. x 305mm Pack/12 0 in stock (?) $223.00 AUD