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Cobalt Chrome alloy
Cobalt Chrome alloy
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  • Product class: Category Casting metal alloy Cocr alloy
  • Product describe:Cobalt Chrome alloy
  • Cobalt Chrome alloy


     Technical Data                                                                             Composition

    Melting Range

    1290°C-1370°C

    Cobalt 

    61%       

    Yield Strength

    530 MPA

    Chrome

    25%

    Density

    8.5 (g/cc)

    Molybdenum

    6%

    Elongation

    4%

    Tungsten

    5%

    Coefficient of Liner

    Expansion(25-500°C)

    14.1 X 10-6 K-1

    Others

    <3%

    Elastic Modulus

    210Gpa

     

     

     

    Instructions for use

    Waxing: Mininum metal thickness (after grinding) should be 0.3mm. Waxing could be as thin as 0.3mm to 0.35mm

    Spruing:

    A-Direct for single units. Sprueing should be 6mm in length. Based on the size and the thickness of crowns use 6-8 gauge sprues.

    B-indirect for multiple units. Use straight 8 gauge sprue, about 3 or 4mm in length and connect it to the unit.

    For long spanned bridges use and additional sprue connected to the last unit.

    Investing: use high heat investments. follow the manufacturer's instuctions carefully. After investment has set, scrape the top of the investment to allow gases to escape.

    Burnout: Place the ring in the furnace at room temperature, increase the temperature to 980-1050°C, with one hour holding time. Add 10/15 extra minutes for each addtional ring.

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