Do I need to anneal the 4130 rods?

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Thread: Do I need to anneal the 4130 rods?

  1. #1
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    Default Do I need to anneal the 4130 rods?

    This is the first time I will be turning 4130 rods on a lathe. Can I turn them as is or is annealing required?

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  2. #2
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    I'm not sure you can get 4130 so hard it can't be turned, however it comes in a wide variety of hardness. Most times it's purchased at the final hardness required then machined. Saves a trip to the heat-treater. Either test the hardness or try a piece.



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    Can't test hardness.
    Should I be able to use HSS tool, or do I need carbide/TIN?

    OOPS, sorry, false alarm! It cuts like butter with HSS, so all tip top.



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    If you can't test the hardness how do you know it needs annealed?

    If you can cut into it with a file, you can cut it with HSS. Run appropriate speeds.



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    OOPS, sorry, false alarm! It cuts like butter with HSS, so all tip top.
    Intimidated by new material I just paniced.



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Do I need to anneal the 4130 rods?

Do I need to anneal the 4130 rods?