SIGRAFINE® isostatic graphites CZ5.2/R6520

Want to keep this datasheet? Save it now in your required format

Description

SIGRAFINE® Isostatic graphite is an ultra-fine grain graphite used for electronic applications where the mechanical properties of other fine grain graphites are inadequate. The term "Isostatic Graphite" stands for isostatically molded graphite. This means that the raw material mixture is compressed into rectangular or round blocks in a so called Cold-Isostatic-Press (CIP). Compared to other technologies such as extrusion or vibration molding, this technology can produce the most isotropic form of artificial graphite. In addition, isostatic graphite generally tends to have the smallest grain sizes of all artificial graphites. Typical properties of the material:


  • Extremely high thermal and chemical resistance
  • Excellent thermal shock resistance
  • High electrical conductivity
  • High thermal conductivity
  • Increasing strength with rising temperature
  • Easy to machine
  • Can be produced with very high purity < 5 ppm
  • This material data has been provided by SGL Carbon.

    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

    Ashby charts

    Properties

    General

    PropertyTemperatureValueComment

    Bulk density

    23.0 °C

    1.81 g/cm³

    Show Supplier Material materials with Bulk density of 1.81 g/cm³

    Grain size

    10 μm

    Show Supplier Material materials with Grain size of 10 μm

    Porosity

    12 %

    Show Supplier Material materials with Porosity of 12 %

    open porosity

    Mechanical

    PropertyTemperatureValueComment

    Compressive strength

    23.0 °C

    120 MPa

    Show Supplier Material materials with Compressive strength of 120 MPa

    Elastic modulus

    23.0 °C

    11 GPa

    Show Supplier Material materials with Elastic modulus of 11 GPa

    Dynamic Modulus

    Flexural strength

    23.0 °C

    55 MPa

    Show Supplier Material materials with Flexural strength of 55 MPa

    Hardness, Rockwell

    23.0 °C

    80 [-]

    Show Supplier Material materials with Hardness, Rockwell of 80 [-]

    5/100

    Thermal

    PropertyTemperatureValueComment

    Ash content

    23.0 °C

    5E-4 - 3E-3 %

    Show Supplier Material materials with Ash content of 5E-4 - 3E-3 %

    depending on the code, it can also be less than 5 ppm

    Coefficient of thermal expansion

    23.0 °C

    4.2E-6 1/K

    Show Supplier Material materials with Coefficient of thermal expansion of 4.2E-6 1/K

    @20-200°C

    Thermal conductivity

    20.0 °C

    100 W/(m·K)

    Show Supplier Material materials with Thermal conductivity of 100 W/(m·K)

    Electrical

    PropertyTemperatureValue

    Electrical resistivity

    23.0 °C

    1.3E-5 Ω·m

    Show Supplier Material materials with Electrical resistivity of 1.3E-5 Ω·m

    Chemical properties

    PropertyValueComment

    Aluminium

    1E-6 - 5E-6 %

    Show Supplier Material materials with Aluminium of 1E-6 - 5E-6 %

    depending on the code, it can also be less

    Boron

    2E-6 - 1E-5 %

    Show Supplier Material materials with Boron of 2E-6 - 1E-5 %

    depending on the code, it can also be less

    Calcium

    1E-6 - 2E-5 %

    Show Supplier Material materials with Calcium of 1E-6 - 2E-5 %

    depending on the code

    Carbon

    Balance

    Chromium

    1E-6 - 2E-6 %

    Show Supplier Material materials with Chromium of 1E-6 - 2E-6 %

    depending on the code, it can also be less

    Cobalt

    1E-6 - 2E-6 %

    Show Supplier Material materials with Cobalt of 1E-6 - 2E-6 %

    depending on the code, it can also be less

    Copper

    1E-6 - 2E-6 %

    Show Supplier Material materials with Copper of 1E-6 - 2E-6 %

    depending on the code, it can also be less

    Iron

    2E-6 - 5E-5 %

    Show Supplier Material materials with Iron of 2E-6 - 5E-5 %

    depending on the code

    Magnesium

    1E-6 - 1E-5 %

    Show Supplier Material materials with Magnesium of 1E-6 - 1E-5 %

    depending on the code

    Manganese

    1E-6 %

    Show Supplier Material materials with Manganese of 1E-6 %

    max.

    Nickel

    1E-6 - 1E-4 %

    Show Supplier Material materials with Nickel of 1E-6 - 1E-4 %

    depending on the code, it can also be less

    Phosphorus

    2E-6 - 1E-5 %

    Show Supplier Material materials with Phosphorus of 2E-6 - 1E-5 %

    depending on the code, it can also be less

    Silicon

    1E-4 - 2E-4 %

    Show Supplier Material materials with Silicon of 1E-4 - 2E-4 %

    depending on the code, it can also be less

    Titanium

    1E-6 - 2E-5 %

    Show Supplier Material materials with Titanium of 1E-6 - 2E-5 %

    depending on the code

    Vanadium

    1E-6 - 5E-5 %

    Show Supplier Material materials with Vanadium of 1E-6 - 5E-5 %

    depending on the code

    Technological properties

    Property
    Processing methods

    Isostatically pressed