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How to get Harmon with 1084

Discussion in 'Shop Talk' started by Maximus, Jun 8, 2015.

  1. Maximus

    Maximus Founding Member

    i am ready to heat treat a gyuto out of 1084. Is it possible to get a hamon ? Do I just use the high temp goo I use for w2? What's your advice? Thx
  2. CrisAnderson27

    CrisAnderson27 Professional Craftsman

    Is this Aldo's 1084? It's a bit higher in manganese than preferred, but it will definitely produce a hamon.
  3. Maximus

    Maximus Founding Member

    Yes it is. That's what I thought. Any advice? Using an evenheat kiln. Thx
  4. CrisAnderson27

    CrisAnderson27 Professional Craftsman

    Being eutectoid it's going to heat treat pretty simply. What are you using for a quenchant? And what 'goo' did you use for your W2 lol? Pictures of both would be awesome, just so I can see how your layout was etc.

    Honestly, it's going to heat treat a lot like W2 to some extent.


    Tempering Temperature and resultant Rockwell Hardness

    °C - °F - HRC

    149 - 300 - 65

    177 - 350 - 63-64

    204 - 400 - 60-61

    232 - 450 - 57-58

    260 - 500 - 55-56

    288 - 550 - 53-54

    316 - 600 - 52-53

    343 - 650 - 50

    ^^^^^ is pretty much everything you need to know. Heat to 1450°F-1500°F, let soak about 5 minutes (not necessary with this steel, but I like to make sure everything is in solution), quench into canola oil.
  5. Maximus

    Maximus Founding Member

    Parks 50. I forget the name, but it is furnace sealant, used in Dave lischs w2 class mixed with some oil. It created a great hamon on w2. I have a picture of the actual tube on my phone, not available right now. What do you use. Thx for the info Chris!
  6. CrisAnderson27

    CrisAnderson27 Professional Craftsman

    Rutland's Furnace Cement? Black? I mix mine with water myself. I use either it or Satanite. The Parks should be fine, but might actually harden it a bit too quickly. It could be you need a thicker layer of clay than you did on the W2.

    And any time my friend...glad to help!
  7. Maximus

    Maximus Founding Member

    Yes that's it! Thx! I appreciate your help! Eric
  8. CrisAnderson27

    CrisAnderson27 Professional Craftsman

    Any time! Feel free to share pictures, and don't hesitate to ask if you need anything else :)
  9. MotoMike

    MotoMike Founding Member

    Awesome Cris. Good luck Eric and I can't wait to see the pics!
  10. Jeffery Hunter

    Jeffery Hunter Founding Member

    This thread speaks volumes of this community and the willingness to seek and share knowledge. Well played gentlemen.
  11. cheflarge

    cheflarge Founding Member

    :like +1 :cool1
  12. Spaz

    Spaz Founding Member

    Would love to see some pics of this!

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