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  1. #1
    Join Date
    Aug 2007
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    4

    Arrow 3.5 Nickel Electrode

    Could you please write if the electrode for welding 3.5 Nickel A333 Gr3 material is stopped from production and is not available in the market? Electrodes 7018-C2L / E8016-C2 are designated in our specification. If these electrodes are not available then what is the alternative electrode that can be used as the impact test requirement is -101 deg.C. Can 7018G be used ?
    Please advise on an urgent basis.

  2. #2
    Join Date
    Aug 2007
    Location
    New Orleans, LA
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    161

    Default

    Try Lincoln's knowledge base. If you can't find the answer there you can email them and they will give you an answer.
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  3. #3
    Join Date
    Aug 2007
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    4

    Default 3.5 Nickel Electrode

    Thanks Rogers!
    I have written to Lincoln, Esab, Oerlikon and Kobe Steel and yet to receive any reply from them.

  4. #4
    Join Date
    Oct 2006
    Location
    British Columbia
    Posts
    500

    Cool

    llalbabu 3.5 Nickel Electrode

    --------------------------------------------------------------------------------
    Could you please write if the electrode for welding 3.5 Nickel A333 Gr3 material is stopped from production and is not available in the market? Electrodes 7018-C2L / E8016-C2 are designated in our specification. If these electrodes are not available then what is the alternative electrode that can be used as the impact test requirement is -101 deg.C. Can 7018G be used ?
    Please advise on an urgent basis.


    You can use one of these 8018 - C1
    designed for welding 2% to 4% nickel bearing steels for low temperatures

    OR

    8018 C- 2
    designed for welding 2% to 4% nickels steels also designed for low temerature

    I cant find a 8016 -C2 or 7018 - C2L

  5. #5
    Join Date
    Aug 2007
    Posts
    4

    Default 3.5 Nickel Electrode

    Hi
    Here my contractor is planning to weld with E7018G which has only 0.5% Nickel for root and the rest of passes with E 8018-C2. But can E 7018G be used for welding A333 Gr3 material?
    They say that the dilution effect of hot pass will blend the metallurgical properties of E 7018G and hence can be used.

  6. #6
    Join Date
    Oct 2006
    Location
    British Columbia
    Posts
    500

    Cool

    Quote Originally Posted by llalbabu View Post
    Hi
    Here my contractor is planning to weld with E7018G which has only 0.5% Nickel for root and the rest of passes with E 8018-C2. But can E 7018G be used for welding A333 Gr3 material?
    They say that the dilution effect of hot pass will blend the metallurgical properties of E 7018G and hence can be used.

    Okay this A333 Gr3 material the only thing that comes close to this is

    Nickel steels are 2015,2115,2 1/2% ni steel,2315,2320,2330,2340.

    and

    medium nickel - Chromium steel and they are 3115,3125,3130,3140,3150,3215,3230,3240,3250,3315, 3325,3435,3450.

    I would have to say NO.

  7. #7
    Join Date
    Aug 2007
    Posts
    4

    Default 3.5 Nickel Electrode

    Darmik
    Thanks for throwing some light on the subject.
    API RP 582 restricts welding 3.5 Nickel to 3.5 Nickel material with E80XX-C2 or E70XXC2L.
    It also seems that E7018G is limited to impact toughness upto -46 Deg.C

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