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Citgo Quenchol 521

Joshua States

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Has anyone ever used this quench oil? Can anyone tell whether it is a fast oil by the data sheet?



It looks like it will cool about 204*F per second

Citgo Quenchol 521 & 624.pdf

Edited by Joshua States

“So I'm lightin' out for the territory, ahead of the scared and the weak and the mean spirited, because Aunt Sally is fixin’ to adopt me and civilize me, and I can't stand it. I've been there before.”

The only bad experience is the one from which you learn nothing.  





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Looks like the two are 16 and 17 second oils if I am reading the data sheet right.  That is fairly slow compared to parks 50 which I believe is a 9 second oil.

Edited by Brian Dougherty


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Problem fixed thanks to Niels!  And yeah, those are slow oils for things like O-1 and 5160.  Parks is indeed a nine-second oil, but many people swear by McMaster-Carr's 11 second oil for hamon.  At least when they can't get the Parks.  Don Fogg used Brownell's Tough-Quench (an 11-second oil) for years, and nobody ever found fault with his hamon.  Houghto-Quench K is a 7 to 9 second oil equivalent to Parks 50.  The abovementioned tough quench is Houghto-Quench Q.  Another equivalent would be Texaco A.  A little Google-Fu reveals Shell Voluta high speed oil is another Parks 50 equivalent. 

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