Jacob Barlow Posted October 16, 2020 Share Posted October 16, 2020 Hi all. First post here, but been reading and learning for a bit. I am waiting for my Evenheat KH418 to arrive. In the meantime, I am looking to buy some quench oil. I can't seem to get a definitive answer is Parks AAA would be suitable for the 3 above mentioned steels? These are the 3 that I work with the most often. Thanks for any help and insight you guys can provide. Link to comment Share on other sites More sharing options...
Joël Mercier Posted October 16, 2020 Share Posted October 16, 2020 It will work fine with O1 and 8670 but you may not get full hardness on 1084, especially with thick cross sections. 1084 is sorta in between medium and fast oil quench, where medium does fine for thin sections and fast is the go to for thicker sections. In other words, you may end up with auto hamons with thick blades and medium speed oils. Link to comment Share on other sites More sharing options...
Alan Longmire Posted October 16, 2020 Share Posted October 16, 2020 AAA is perfect for O1, 5160, and 8670, and I've never had any problems with it using 1084 at 1/4" thick. It has enough manganese to through-harden. The only steels AAA might be less than optimal for are 1095 and W1/W2, or Aldo's low-Mn 1075. It will work, but won't do a vibrant hamon. Link to comment Share on other sites More sharing options...
Jacob Barlow Posted October 16, 2020 Author Share Posted October 16, 2020 Thanks so much for the information. The 1084 that I have is 1/8" thick by less than 2" wide. So I should be good to go? Link to comment Share on other sites More sharing options...
Alan Longmire Posted October 16, 2020 Share Posted October 16, 2020 Absolutely. Just be sure the oil is warm. Parks/Heatbath specify it must be at least 100 degrees F to work. Max allowable temperature is 180 degrees F. It is rated as an 11-second oil at 100 degrees, and a 9-second oil at 180 degrees. Don't worry about what the "seconds" mean, they don't correspond to actual time in the quench. For comparison, 130-degree canola is a 9-second oil. Parks 50 is a 7-second oil. Link to comment Share on other sites More sharing options...
Jacob Barlow Posted October 16, 2020 Author Share Posted October 16, 2020 Gotcha, I'll be sure to warm it up to 100 degrees F. Was going to use an electric charcoal starter to warm it up and use a turkey fryer thermometer to check temp if that is an acceptable method. Yea I read about the "9 second oil etc..." and how it relates to a nickel ball quench, so they have a uniform comparison across all those mediums. Link to comment Share on other sites More sharing options...
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