MEMBER ITEMS FOR SALE
Custom Knives | Other Knives | General Items
-------------------------------------------
New Posts | New PhotosAll Photos



Go Back   The Knife Network Forums : Knife Making Discussions > Custom Knife Discussion Boards > Knife Making Discussions > Heat Treating and Metallurgy

Heat Treating and Metallurgy Discussion of heat treatment and metallurgy in knife making.

Reply
 
Thread Tools Display Modes
  #1  
Old 03-19-2014, 11:02 AM
Special_k Special_k is offline
 
Join Date: Mar 2014
Posts: 2
Heat treating 5160

How can I reduce the scale on my blade after I quench it? Is it possible to wrap the blade before heat treat and still achieve desired hardness?
Reply With Quote
  #2  
Old 03-19-2014, 11:22 AM
samuraistuart samuraistuart is offline
Steel Addict
 
Join Date: Dec 2012
Location: San Antonio Texas
Posts: 163
No, you can't wrap an oil hardening steel in foil and quench it. You would have to take the foil off first before the quench......which, of course, you'll lose all your heat in the time it takes. There are products, try Brownells.com, for anti-scale coatings. Also, satanite or rutlands, which is used to create a hamon, can be applied as a thin wash over the entire blade to help control scale and decarb.
Reply With Quote
  #3  
Old 03-19-2014, 12:49 PM
Doug Lester Doug Lester is offline
Hall of Famer
 
Join Date: Sep 2006
Location: Decatur, IL
Posts: 2,612
Most of the scale comes off my blades when I scrub them in hot soapy water. If not, you can just pickle them in white vinegar overnight.

Doug


__________________
If you're not making mistakes then you're not trying hard enough
Reply With Quote
  #4  
Old 03-19-2014, 06:40 PM
Ed Tipton Ed Tipton is offline
Skilled
 
Join Date: Apr 2009
Posts: 352
SpecialK...I have made many knives from 5160 without excessive scale being a problem. If you are having this problem, it suggests to me that (1) you could be heating your blade hotter than what is necessary and thereby forming excessive scale, and (2) the time lapse from when you remove the blade from the heat until you get it into the quench is perhaps too long which could allow the blade to cool off too much. In my experience with 5160, I can see where the surface of the blade is scaled somewhat when it comes out of the fire, but upon quenching it quickly, the scale explodes off the blade upon contact with the quench. There may be some small deposits of scale, but nothing very major.
I have also used white vinegar in removing scale. It softens the scale to the point where grinding it off the blade is not a problem. sometimes it is possible to simply wipe it off, or wire brush it off.
It is very important to get the blade immersed in the quench ASAP after removing it from the fire...preferably one or two seconds.
Without going into a lot of detail, you might want to take a good look at wet forging. This is a technique that can help in removing scale from your blade during your forging phase of your process. It could help in reducing the amount of scale prior to your quench.

Last edited by Ed Tipton; 03-20-2014 at 03:30 AM.
Reply With Quote
  #5  
Old 04-04-2014, 11:48 PM
Special_k Special_k is offline
 
Join Date: Mar 2014
Posts: 2
Thanks to everybody for your information. It has been very helpful.
Reply With Quote
Reply

Tags
5160, bee, blade, blades, fire, grinding, hamon, heat, heat treat, hot, knife, knives, made, problem, products, scale, steel, surface, white, wrap


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Heat treating 5160 steel Knifemaker96 Heat Treating and Metallurgy 66 05-14-2015 04:56 PM
Heat treating 5160 Arccher Moon The Newbies Arena 8 10-03-2009 12:42 PM
Heat treating 5160 autosolutions Ed Caffrey's Workshop 17 09-16-2008 10:07 PM
Question on 5160 Herat Treating dave Stifle The Outpost 3 03-30-2008 10:04 PM
Tempering, Heat Treating, Cryo-Treating 5160? nosborn The Newbies Arena 1 02-22-2002 12:41 AM


All times are GMT -5. The time now is 05:02 PM.




KNIFENETWORK.COM
Copyright © 2000
? CKK Industries, Inc. ? All Rights Reserved
Powered by ...

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
The Knife Network : All Rights Reserved