Ultimate quench oil for 5160

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Imma gonna aska stoopit question:

whaddaya get when you blend 11-second oil with 28-second oil? Cranapple?
has anybody tried this?

-Daizee
 
Not just hear it, you can feel it thru the tongs...Its a sickening feeling really..Like getting kicked in the nads..
 
Daniel Fairly Knives said:
I need to get a job with you! :D
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I wish I was still there, I miss my microscopes, and having a chem lab with Mass, optical, and X-ray spectroscopy plus carbon/sulfur analysis and wet chem only a work order away who owed me favors for saving their butts on the castings that became the Space Shuttle main engine nozzles. Unfortunately the bean counter in charge of my department restructured me out in January. They claimed that they had no further use for someone with my level of qualifications (I do not actually have a degree in engineering) that was on a Monday, on that Wednesday I got a phone call from my former direct supervisor pleading with me to come in and save their butts, they could not figure out how to turn on a machine I had supervised the installation of that replaced one that was dangerously out of control, and was the only one like it in the world that was necessary for a test, and my backup was on vacation when they downsized me out, and if I didn't come in to do the test (Which they videotaped so they could learn how to do it) they would have to charter a cargo plane or three to transport 12 10,000 pound billets to Germany because they would miss the cargo ship. In hindsight I should have told them to bugger off and figger it out, but I managed to talk them into giving me the tube furnace from the old machine, all of the spare sector heating elements for it and reccomendation letters in addition to cash.

-Page
 
hey guys, quick question i hope you dont mind. any reason why the McMaster carr 28 second oil would be "bad" for 5160?

thank

jake
 
strahd71 said:
hey guys, quick question i hope you dont mind. any reason why the McMaster carr 28 second oil would be "bad" for 5160?

thank

jake
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its not bad but a little faster oil wont hurt either. you should heat treat your steel at 1550 degrees F for 30 mins. you should be good with 28 sec oil at this heat. correct me if im wrong.
 
chad2 said:
its not bad but a little faster oil wont hurt either. you should heat treat your steel at 1550 degrees F for 30 mins. you should be good with 28 sec oil at this heat. correct me if im wrong.
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Every heat treat recipe for 5160 that I found said 1525, if you had to go up to 1550 to achieve AF I would check the calibration of your thermocouple against a known phenomenon (say the Curie point of steel: 1414 f)

-Page
 
sunshadow said:
Every heat treat recipe for 5160 that I found said 1525, if you had to go up to 1550 to achieve AF I would check the calibration of your thermocouple against a known phenomenon (say the Curie point of steel: 1414 f)

-Page
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according to ed caffrey critical temp is at 1550 degrees this is a forum of him telling someone else this second post down.

also justine gingrich says this. here is the link

http://www.knifenetwork.com/forum/showthread.php?t=51846
 
http://cashenblades.com/steel/5160.html

5160-HTG-p-198-001-1.jpg
 
I would be more likely to trust the people who make the steel and have to publish spec sheets that people worldwide use to achieve optimum results than your friend Justine, and I suspect Ed is making sure that people do not undershoot since there is no control over what people reading your advice use. Since I calibrate my equipment I go by the charts and have yet to have an issue

-Page
 
chad2 said:
according to ed caffrey critical temp is at 1550 degrees this is a forum of him telling someone else this second post down.

also justine gingrich says this. here is the link

http://www.knifenetwork.com/forum/showthread.php?t=51846
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Perhaps, Ed is using the suggested heat for austentempering... where the quenching takes place in a molten salt bath..... or not. That is the first source I've come across that suggests a higher austenitizing temperatue than 1525F. I would go with mfg specs.


Doh... Shep and Page beat me to it...
 
Interesting stuff. I probably have 5 sources that mention 1525 but hey you never know! Thanks again guys!
 
sunshadow said:
I would be more likely to trust the people who make the steel and have to publish spec sheets that people worldwide use to achieve optimum results than your friend Justine, and I suspect Ed is making sure that people do not undershoot since there is no control over what people reading your advice use. Since I calibrate my equipment I go by the charts and have yet to have an issue

-Page
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like i have been told before on this forum by very knowledgeable people the manufacturer specs are not for knives they are for tools or springs which is not going to be the same heat treat as a knife.
 
Rick Marchand said:
Perhaps, Ed is using the suggested heat for austentempering... where the quenching takes place in a molten salt bath..... or not. That is the first source I've come across that suggests a higher austenitizing temperatue than 1525F. I would go with mfg specs.


Doh... Shep and Page beat me to it...
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ed does not do this type of heat treating method. he does talk about heating his oil, but not the molten salt
 
i am not saying that you guys are wrong but you are saying that i am wrong. 5160 can be heat treat at 1525-1550 degrees F i do 1550 to ensure it reaches austenite temperature. but everyone has there preferances :)
 
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