Hard steel nozzles not suitable for aluminium blocks E3D advice??

Discussion in 'HotEnds & Extruders' started by mat lee, Sep 27, 2022.

  1. mat lee

    mat lee Member

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    https://e3d-online.zendesk.com/hc/en-us/articles/4415901401489-V6-Maximum-Temperature-Ratings

    Any one know why E3D is saying

    "WARNING:
    Hardened steel nozzles are not suitable for use with aluminium blocks above 240°C. You will need to upgrade to a plated copper block and hot tighten at 300°C. "

    i had belived hard nozzle steal/others work fine with aluminium blocks?

    that being said i have had many leaks with Hard nozzles(steal/tungeten carbide) and aluminium blocks in the past if this is true then that could explain a lot.
     

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