Turn Steel Black - Cold and Hot Bluing Process Explained
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- Опубликовано: 21 июл 2024
- turning steel black (actually called steel bluing) is a super easy but fascinating and very useful process. not only for rust prevention- but mostly for aesthetics.
Here is the steel bluing solution I used:www.ballistol-shop.de/Brownin...
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"It's posh rust."
Ha ha. Lilu Dallas multipass
Good slogan for a t-shirt.
Laughed too hard at this
Best comment!
oh Laura, the joy on your face when you’re sharing your knowledge is so damn adorable and worth every minute! This video was really interesting to say the least, i love it when you make me learn something new! and i can’t wait for the possible *wink wink* camper project haha 💜
Oh sure I can't wait too
For extra confusion it's called Brünieren (=Browning) in German :D
From what I understand, browning is the original process that involved soaking in salt-water, lightly sanding, re-soaking in salt water, lightly sanding, etc. until the desired shade was achieved. It was called browning because that was the resulting colour. The later chemical processes result in a bluish-black and that is called bluing.
Although one can now buy chemicals that turn the metal brown.
Please note: I am not deutsch-splaining, I do not know how the terminology is applied there. Just laying out the etymology as I understand it in English
@@ltlbuddha the English wikipedia page has a decent explanation, it's just that in German, Brünieren has become something of a catch-all phrase
Same in Italian! We say “brunito”
Interesting. In Czech it's really called blackening = černění.
Same in French!
I love how natural you are on camera and your explanations are so clear and understandable. Everything you do ends up looking so cool yet you’re so modest about your ability. (I’m sure lots of planning and prep goes on behind the scenes)
Keep the videos coming and we’ll keep watching. Especially camper/ motorbike/ bicycle videos. Love them.
A channel called my mechanics made a good video on bluing. He uses both methods in his amazing restorations
Thanks for the hot bluing technique. I have a use for that now! Leaving the blackening/bluing in the deep scratches looks terrific on the tank! In printing, that's similar to a technique called "intaglio" where the entire surface of the engraved metal is inked, but wiped away in the high spots, leaving only the engraved lines holding any ink. I could see the Kampf logo etched into the tank and then blacked & sanded away.
3:42 looks like a design opportunity. Using oil or something to blocks the process and create a pattern or distressing.
good idea, you probably can (hand)write something ... you just have to eat some finger food 😉 ... an seal it with clear coat
I've heard about ppl doing this with knives nail polish and ferric chloride to create a negative space design on a blade
Laura, it also works on Brass, I have used Cold Bueing Liquid to age Brass pieces for my steampunk masks
I would love to see your masks! Do you have a web site? I have made a few masks too, but not steampunk.🤗🐝❤️
@@deborahdanhauer8525 I dont have a site as such yet, I am building up my confidence and experience/skillsets. I get the patterns from other creators that are on RUclips and have Etsy stores. I work in Leather, if you search leather steampunk mask on here, you can see some of the makers I subscibe to and get the patterns from.
@@markwatts7634 Thank you, I will. I just make up my own patterns, and I’ve made a mask of cotton rope, and one of metal with leather trim, and working on one out of cloth at the moment.
Oh man, I bet that looks awesome on brass! I'll have to do some image searching after the video.
Videos like this are inspiring. You explain things, and show how it's done, in a way that makes mewant to give it a shot. Thank You Laura!
You don't even have to use special chemicals, common Household-Acids like Vinegar, Citric-Acid or Mustard can do the Trick. But they need some Time and havent this cool instant Effect, and it ends up with a more greyish Black.
I like doing this to Knives with Carbonsteel-Blades (non Stainless), because as Laura said, it looks cool and gives same protection (and they will darken anyhow).
Hot bluing in used motorbike oil works really well - gets a really deep colour. Apparently, the high carbon in used oil helps. Also good to find something to do used oil after the bikes oil change 👍
Good tip! Thanks!
Quenching in oil is called “case hardening”, separate process from blueing steel.
@@velvetonecustomshop5026 you’re wrong on the case hardening process, basically the process involves soaking iron with high carbon content material like case hardening compound or powdered charcoal in extreme heat and over time the carbon migrates into the steel, oil quenching has a hardening effect on the steel but is not case hardening
@@BESHYSBEES “used motorbike oil” as mentioned is about 100% carbon there Bee, so you made my case for case hardening:) it’s exactly how we make carbon steel for chisels etc In our shop.
@@velvetonecustomshop5026 it’s not the same I think you need to do a little revision, quenching does not case harden steel
Great video, as always! 🔥🔥🔥 Love these how-to videos (even though I don't build stuff myself, it's just super interesting to see how these things work)! 😊
A great explanation! I really enjoy learning about all this stuff, and look forward to your videos like this, and all your videos. Thank you, Laura!
Loving the tutorials! I always wanted to make my own fire pit but was too nervous, so I can't wait to see how you make yours
So glad you posted this
This is probably my favorite channel on RUclips, please keep the videos coming!!
Those processes are fascinating to watch! Thank you for explaining how they work.
Thanks! Really like the way your coarse grind, blue, fine sanding process looks.
Im building a welding table right now, and the heat resistant steel rust prevention will help a lot. Thanks for sharing that knowledge, awesome video!
Thanks for the bluing video Laura. I keep meaning to try it.
That was a real nice video. I look forward to trying hot blueing. Thanks!
Great explanation and demonstrations! Thanks, I love these tutorial videos!
I don't know anything about bluing or blackening, great to see easy to understand explanations!
Just found your page, while looking for metal bluing tips. Nice. Subscribed. ✌️
Love the fingerprint demo.... very good way to show how important it is to make sure everything is clean before brushing on the chemicals. I like the Ballistol spay oil - it really seems to cling to the surfaces
The universal oil is super good - also foodproof. Mixed with water it’s a great cutting oil and mixed with whiskey a drink (don‘t do that :))
@@laurakampf Too late...
@@laurakampf Whiskey: the universal (social) lubricant. 🤣
What a great video! You've given me lots of ideas!!! Thank you.
Thanks for sharing some more in depth skills with metal. I learned and it cleared up some questions I had about how you did the gas tank (which I loved).
Thank you for the explanation in these videos. Keep videos like this coming 👍
Good job Laura you are very talented
Awesome and very useful video. Keep up the great craftsmanship and hard work my friend. Keep making. God Bless.
Fabulous explanation!
Thanks
An excellent video, which I found very helpful.
You are correct, heat-treating and then quenching in oil will change the steel temper and is not suitable for where strength is required.
thanks for the explanation. Always wanted to try this on straight razors. Looks like you are having a great hair day!
Absolutely love these informational videos! Learning so much :)
perfect explanation, thanks and really usefull !!
Laura , thank uou so very much for this informative video 😊
This is great information. Thanks.
Whatever solution you used in cold bluing was probably the best on the market. Most people in restoration videos use a cheap solution or they don't wait long enough before washing it off so the finish isn't as good as yours. Great video! I love when people quench in water, haha! :o)
Great topic. Great video.
Best breakdown I’ve heard! Thank you so much..
If this is how you explain everything, I'm going to smash that subscribe button. Finally, science explained in ways I can understand.
Great video! Sorry I missed the chat. I always wanted to use bluing on some of the knives I made but found it was not really tough enough to stand up to the daily use and sharpening. For more ornamental pieces though it is a gorgeous finish.
Thanks Laura, love the barbecue idea!
gasp! You're working with the truck like the Kei trucks that I'm obsessed with! I can't wait!
What about doing this to a shed? I think that would look awesome! I have an old rusted shed I think I’ll try to cleanup and maybe give a try!
More moto vids! Great stuff as always Laura
Great work!
For fun, heat up some sheet copper, and quench in boiling water…superfun patina.
This is exactly what I needed this week
Wow! You are utterly amazing. You're beautiful. Your character and your charm jumps out and grabs me by the heart. I couldn't help but subscribe.
Good tips. Thanks for doing such video.
Great video! Thank you.
I'm with Team Kampf, it's Black. Professor Laura bringing the knowledge. This was a great video.
Hi! I really enjoy your videos, specially the explanations given with them. I can add to the bluing methods, there is another one, is called "nitre bluing" and is the method using in firearms, it uses potassium nitrate (KNO3) and sodium hidroxide(NaOH). And the one using oil is also called "polymerization". Regards!
Nitre blueing is also called rust blueing, its a much more durable blue and is much better for rust prevention
@@hannas865 nitre bluing and rust bluing are different processes
You said "Multicar", and the first thing that pops into my head; "Multipass!"
Big Badaboom 🤘
Mul T Passss!! Yes, she knows! Its a multipass. ...Anyways were in love.
@@DrKuebel autowash ;)
Hi! Woa the tank looks great, the thing with the deep scratches is cool! Instead of using the toxic chemicals in cold bluing, you can also use vinegar or citric acid, for example. You only have to let it work for 24 hours instead of a few seconds ...
I once put olive oil on a galvanized can and it turned black after a few days. (Not intended)
Can't wait to try this out on some small parts on a router plane build.
You might also look at clickspring on heat bluing steel -- there's a lot of detail about what can go wrong
Now those are some pretty colors.
Thanks for explaining the process! 👍👍
I can't wait for see the new merch.... Cheers from🇵🇹🤟
Thanks a lot for the details . It will be usefull 👍
Yes! A way to blacken my garden firethingy! Thanks Laura.
Nice! I am an art jeweler and we call these patinas. I use six different ones on a regular basis. I love it!
Danke Laura! Was für ein tolles Erklärvideo! Und genau zur richtigen Zeit, jetzt weiß ich nämlich worauf ich bei meinem Fahrradrahmen achten muss - der soll brüniert werden :D
Viel Erfolg! Klingt nach einem super Projekt!!
Oh man, I'm so hyped for the merch!
Me too!!!
“Let glue dry” is something that I must learn. It’s so bad that I glue up two pieces of scrap that I can test instead of fiddling with the project when I want to see if the glue is done. Ruined a few things that way.
Can you "draw" using the bluing technique? Much like masking parts during painting, do the same with bluing? I think your logo would look like a great experiment to do
Probably with a wax mask, but you'd lose any anti-corrosion protection you'd usually get with oiled, blued steel
What I thought of when she showed how her fingerprint wouldn’t take the bluing, was to draw with oil and blue over it. Sort of a relief drawing…That should work, right??
@@forresthsu582 Ah, but Laura did cover the mitigation technique by varnishing the piece, with how she did her motorcycle tank.
It will work with a vinyl mask ;)
Yes you absolutely can, The Oxpho blue from brownell's.com doe amazing for cold bluing jobs.
great content combined with ur lovely smile.
Danke :)
Science lesson with Laura 😁 Thanks for this, I learned a lot 👍 Cheers
Just for the example of the bluing solution refusing to blue past the fingerprint, this is a wonderful video.
Great video. Love bluing, gives the surface some depth compared to paint. Mahalo for sharing! : )
I cold blued all the controls on all my drill presses From the 1950's. Great rust free solution to a home shop.
Good learning experience!
I've tried a third technique which is common with firearms restorers. You treat the surface with a mixture of acid and etching chemicals and let it rust (orange non-posh) and then you boil it in water and it turns the rust into posh rust!
Thank you!
Very cool! It would be neat to see if how much you heat the part and the type of oil has any affect on the finish.
Happy 601k 🎉❤️🇨🇦
and subscribed !!!! thanks , I have never done the cold "blue" way , It is called "blackened tosted dark smoke burned" , that´s what I´m gonna tell the clients ! I do it with heat always.
Thanks for going over this. It's a cool effect that adds a nice detail to metal projects. Have you tried anodizing? That may only work with aluminum, but you can get a variety of colors depending on how long you do the process. Thanks for sharing!
you can actually anodize a few other metals (titanium mainly)
Exciting news about the store update, hopefully there will be some ‘Makers Love Equality’ merch too!
very helpful thanks.
Cold bluing also works wonderfully well on copper - turns it a beautiful dark gunmetal. Either practically like on copper pipework (SO much better looking than painted pipes around the house) or artistically instead of allowing the copper to turn verdigris. Love your fuel tank :) :)
Thanks. I’ve done a different technique to bluing a Opinel knife. I took the idea from a RUclips video (Japanese). I’ve used hot vinegar and black tea. You have to put the knife in the solution (hot vinegar+tea); the more time you left, more black is the result. My opinel looks great and never get rust. I’ve also polish the wood handle and put it in boiling oil, and the general result is it looks like a very very old opinel ( actually was new). Sorry for my poor English. Hope you can understand.
Thank you 😁
Thanks for sharing.
Your videos are always interesting to me! 👍 Viele Grüße
In a world now where we can learn something new at a push of a few buttons I was wondering what your process is to gain new skills. When starting out I personally find that the main thing about learning new things is working out what questions to ask.
Are there any skills you don’t have yet but are looking forward to explore?
Thank you Laura 👍🏻
Wow Thanks for all your documented processies! Do you have any idea on how to get shiny chrome effect on steel?
Check out the Pferd Combi Click system. It takes you from forged steel to a mirror finish in 6 or 7 steps. Incredible
I love your videos as always. Great to see more of the hot oil bluing because its not covered much elsewhere.
My understanding is that neither of these techniques actually create black oxide rust. And that the cold bluing in particular is a very thin selenium compound that is not very rust preventative. True black iron oxide is a conversion process that changes a layer of red oxide (Fe2O3) into black oxide (Fe3O4) by boiling in a mixture of lye and vinegar. It is not something easily done in the home shop.
Similar comment here. I don’t know what sort of surface results from heating steel w. a torch, except that the color is a rsult of temperature. I doubt that the resultant surfaces that you describe have any rust resisting properties. What I do know about is not the process that produces the compound referenced above, selenium sounds right, but the real cold blue process that actually does produce Fe3O4 which IS protective, that gunsmiths use. A steel part is painted w. an acid solution and these vary, some contain dissolved iron, some are jus acid plus hydrogen peroxide; these rust the surface w. bad rust but when boiled in water the bad rust is converted to the black good rust. The rust is “carded” off i.e., some is gently removed, then repeat until you get the desired depth of black color.
Thank you
I learned the technic whith hot salt solutions, but these methods are mutch better for home use
Great video Laura! I knew about the chemical bluing but not cold bluing and that it is as easy as it is.
Does the piece have to be heated to a particular temperature such as you do when tempering or hardening steel?
Also, presumably, it has to be bare steel and not zinc-coated or such like?
I been waiting to get my hands on a "browning" solution. Application require you to do all the same steps, heating it up and such just the metal turns more a brown earthy tone.
awesome!
Fancy Rust... Sounds cool :)
Thanks for those who asked…. Thanks for sharing your knowledge
When you apply the oil by brush do you get an uneven covering when its done , Is it better to submerge it in the oil?
Awesome video. Now i want to find something to black. Or blue. Thanks.
I see everytime you doing things I can't understando because we don't speak the same language, but I'm rewatch the video and I get almost everything :·3
thank you for telling us what 'bluing' is. I wondered.
Cant wait to see what you do with that Multi Car! 😄 💜🤍👍
MULTICAR!!!