Carbon and Graphite Rods

Properties of Carbon

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): 2.2 g/cm3
Specific gravity (diamond): 3.51 g/cm3
Specific gravity (amorphous): 1.88 g/cm3
m. p. sublimes: ~3550°C
Boiling point: 4200°C
Evaporation Temp (at which a substance has a vapor pressure of 1.33 x 10-2 mbar): 2400°C
Density: 1.85 g/cc
Shore Scleroscope Hardness: 45
Resistivity Ohms-in: 4.0 x 104
Ash Content <2 ppm
Flexural Strength: 8000 lb/in2
Porosity: 16.5%

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 – 2 nm.

Our carbon/graphite rods are CVP™ (Chemical Vapor 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.

Cat # Description Pack Price Quote Quantity
Cat #: 70200 Description: Graphite Rods 12" L x 1/8" Diameter Pack: 12 Pack Price: $96.00 Add to Quote:
Cat #: 70210 Description: Carbon Rods 12" L x 1/8" Diameter Pack: 12 Pack Price: $99.00 Add to Quote:
Cat #: 70212 Description: Carbon Rods 12" L x 1/4" Diameter Pack: 12 Pack Price: $99.00 Add to Quote:
Cat #: 70230 Description: Graphite Rods 12" L x 1/4" Diameter Pack: 12 Pack Price: $132.00 Add to Quote:
Cat #: 70231 Description: Carbon Rods, Spectro-Grade , 3/16"(4.6mm) x 12" (304mm) Pack: 12 Pack Price: $70.00 Add to Quote:
Cat #: 70301 Description: Carbon Rods, Technical Grade , 1/8"(3mm) x 12" (304mm) Pack: 12 Pack Price: $105.00 Add to Quote:
Cat #: 70302 Description: Carbon Rods, Technical Grade, 1/4"(6.2mm) x 12" (304mm) Pack: 12 Pack Price: $99.00 Add to Quote: