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    1. The Specifications for the Electrodes:

     

    1) Regular Power (RP) Grade Graphite Electrodes

    Typical Physical Properties

    BULK DENSITY gm/cc

    1.60

    SPECIFIC RESISTANCE ohm^-6*m

    8.0

    FLEXURAL STRENGTH MPa

    10

    YOUNG’S MODULUS GPa

    9.3

    ASH CONTENT %

    0.3

    CTE x 10-6/Deg.C

    2.7

     

    2) High Power (HP) Grade Graphite Electrodes

    TYPICAL PHYSICAL PROPERTIES

    BULK DENSITY gm/cc

    1.65

    SPECIFIC RESISTANCE ohm^-6*m

    6.5

    FLEXURAL STRENGTH MPa

    12

    YOUNG’S MODULUS GPa

    12

    ASH CONTENT %

    0.2

    CTE x10-6/Deg.C

    2.0

     

    3) Ultra High Power (UHP) Grade Graphite Electrodes

    TYPICAL PHYSICAL PROPERTIES

    BULK DENSITY gm/cc

    1.70

    SPECIFIC RESISTANCE ohm^-6*m

    5.8

    FLEXURAL STRENGTH MPa

    14

    YOUNG’S MODULUS GPa

    14

    ASH CONTENT %

    0.2

    CTE x 10-6/Deg.C

    1.5

     

    2. Standard Size of Electrodes

     

    Diameter (mm)

    Nominal Length (mm)

    75 

    1000,1200 

    100 

    1000,1200,1500 

    130 

    1000,1200,1500

    150 

    1200,1500,1800 

    175 

    1200,1500,1800 

    200 

    1200,1500,1800 

    225 

    1500,1800 

    250 

    1500,1800 

    300 

    1500,1800,2100 

    350 

    1500,1800,2100 

    400 

    1500,1800,2100,2400,2700 

    450 

    1800, 2100, 2400, 2700

    500 

    1800, 2100, 2400, 2700

    550 

    1800, 2100, 2400, 2700

    600 

    1800, 2100, 2400, 2700

    650 

    2400, 2700

    700 

    2400, 2700

     

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