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Stainless

Discussion in 'Heat Treating' started by ToddR, Jan 15, 2020.

  1. ToddR

    ToddR Putterer, Tinkerer, Waster of Time Staff Member

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    Theres likely a thread for this but I couldn't find it. Noob question about stainless. Can I heat treat stainless using a home made propane forge to the 1000+ C needed for stainless?

    I've been asked to make a sushi knife for my niece and I've never ventured into using stainless before.

    Any quick tips/advice? I've done lots of carbon knives and read up on how to do it so I'm not a total noob. Any quick tips/advice for a stainless virgin?

    Much appreciated and apologies if this exists somewhere already. I'm not great with searching. I get lost and sidetracked easily : )
     
  2. Magnus

    Magnus Member

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    Hi Todd, that's a big old 'maybe'. I've previously tried to treat HSS by eye in my forge - it work very well.

    1. Does your home made forge get that hot? If it can weld then then you're golden.
    2. Do you have a way of measuring the temperature - type k thermocouple with readout.
    3. Can you hold a consistent temperature for the soak time? If your forge is out-doors and it's windy then that'll be a problem.

    I'm pretty sure that some one on this forum was heat treating stainless with a propane forge so it's totally possible. Another option might be to send the knife to knifemaker.ca for treatment (under $20 plus shipping I think).

    PS. Dan has really good plans on his blog for a heat treat oven. I built one; works great.

    Cheers,
    Magnus
     
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  3. dancom

    dancom Dust Maker Best Shop Tool

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    Todd,

    What Magnus said. The temperature and soak time are critical for good results. Use a known steel. For a sushi knife I would go with AEB-L as it can be stropped to a razor edge and is excellent for slicing kind of work. Not as good on bones and hacking.

    Most heat treatment service providers will do cutlery stainless. It might cost a little for the service and possibly postage, but I think you'd be impressed with the results. If you cannot find anyone locally, perhaps someone in the forum can help you out. There's a few members in Ontario that have their own ovens.

    Dan
     
  4. ToddR

    ToddR Putterer, Tinkerer, Waster of Time Staff Member

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    Thanks Magnus. My forge is indoors but i don't have a readout for it. It's a basic one i only use for heat treating. I do have one of those remote thermometer dealies. It may go that high but i don't know how accurate it would be.

    I do need to look into a HT oven. RIght now I'm nursing some stitches and i the planning phase for when I can get back out in the shop.
     
  5. ToddR

    ToddR Putterer, Tinkerer, Waster of Time Staff Member

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    Thanks Dan. I think I'll have to end up sending it out. Between work and all of the other projects on my "honey do" list, I won't be able to make a HT oven for some time.

    Thanks Dan and Magnus. This is what I was looking for. Much appreciated.
     

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