How to Protect Steel from Corrosion. Hot Bluing

Bluing is a passivation process in which steel is partially protected against rust using a black oxide coating. It is named after the blue-black appearance of the resulting protective finish.
In order to successfully blue your steel you need to heat it to a temperature of 300-400 degrees Celsius (bluish color) and then dip it into the vegetable oil.
#shorts

[@KamarulAzlanAhlengChai]

yes it works but i more prefer to chrome metal color huhu

[@ViniSetteDuendeVerde-xv3rw]

its nice, but this process makes the steel a lot hard to stain

[@hayatel2557]

It's for estheticis only. Never heat steel for structural purposes.

[@paulyoder865]

Don’t do this to a knife, it will ruin the temper….

[@PastmasterBuilds]

Yes, you right 👍 Better to use cold bluing on tempered steel.

[@JacobE-23]

Nice end result

[@PastmasterBuilds]

Thank you!

[@AnonYmous-iw6rh]

A blowtorch and some Mazola ?!!??
Shit, that's all??

[@indridcold8433]

I think it is extra virgin whale oil from endangered norwales, mixed with rendered fur seal blubber.

[@7rixee]

​@@indridcold8433 baby seal, mind you.

[@indridcold8433]

@@7rixee Yes, you must use this formula for bluing your steel as well! The rendered baby fur seal oil, in my opinion, is what adds the beautiful bluish colour. The other oils will make the steel item corrosion resistant. But, the beautiful bluish colour is all baby fur seal oil. Why even try to blue anything without the ever important baby fur seal rendered oil? It would be barbaric, even cruel towards the steel.
Love the steel, club a seal!

[@7rixee]

@@indridcold8433 The best thing is, its so ecofriendly and non-toxic.

[@themightyquinn100]

How is the rust resistance?

[@AutodidactEngineer]

Nothing can stop salt water😢

[@indridcold8433]

Making the item of stainless steel, originally, is the only way to stop salt water corrosion. But that is preemptive rust prevention. If the item is already made out tcof steel, nothing will stop if from corrosion from salt water. You may be able to slow down the corrosion. But inevitably, that metal will rust

[@krzhands]

If you live on the coast, you’ve seen stainless corrode.
Just takes a lot longer.

[@user-xr1de2dm9i]

Could i do this to a pistol slide and barrel?

[@copyttyyuuttt]

whats the liquid is that of yellow

[@DC9V]

what's the fluid, just oil?

[@PastmasterBuilds]

Yes, any type of vegitable oil. Linseed oil preferred.

[@makarushi_bichito]

Es algún aceite especial? O aceite de cocina?

[@PastmasterBuilds]

Just regular cooking oil

[@VVeiQuek]

So, rust removal agent like wd-40 is actually not required?

[@bennyboyy7]

Wd 40 removes water, not rust. Since it's an oil it just helps with a lot more than removing water.

[@vcommandarv5916]

We can also use ferric chloride right?

[@PastmasterBuilds]

Yes, it's Cold Blueing. No need to heat the object if you use Ferric Chloride.

[@Ori-lp2fm]

It’s a 600$ blue gem

[@indridcold8433]

Where do you originate that you put your monetary symbol after the currency value? Quebec has a habit of doing that.

[@velk0mmen]

Is this how they made iphone 12 pro max?

[@user-hd4wf5gq8r]

A torch and some oil is all it takes huh? Does the oil matter?

[@PastmasterBuilds]

Yes, any vegetable oil is ok

[@RiyazAlSheikh]

This is hot I need cold damn 💀🕋

[@jamesromboldsr1852]

It's no good if you don't let us know what you using or why

[@XGodXGod-nh8pb]

i can see metal, propane/butane/methane gas, cooking oil most likely from corn or sunflower seeds

[@NoSe-tw7bm]

Hi, if it has already cooldown on room temperature, applying the oil still works? :(

[@PastmasterBuilds]

Hi, no, only if you dip it into oil still hot

[@NoSe-tw7bm]

@@PastmasterBuilds Thanks for the answer! Sorry for making more questions: Is the oil on room temperature? Edible oil or oil use for oil painting?

[@PastmasterBuilds]

@@NoSe-tw7bm Really happy to answer all of your questions. You can use any vegetable oil, and yes, room temperature is okay. Be sure not to use this method on tempered parts, if they're a heat treated you will absolutely ruin the temper of the parts.

[@NoSe-tw7bm]

@@PastmasterBuilds Thank you again! About the container, it has to be glass or some of pyrex? Or it can be any other container? (Ceramic or like an empty metal oil can?)

[@PastmasterBuilds]

@@NoSe-tw7bm anything will do the job 👍

[@mocknugget]

Does this work for stainless steel?

[@bobsagan3235]

No

[@mocknugget]

@kykdik i'm actually interested in the color change not the corrosion resistance

[@catcola1061]

@@mocknugget It does work! like others pointed out, you don’t have to worry about corrosion but if you want the blued color then you can definitely do this. Just don’t do it on anything that is tempered because you will lose the tempering.

[@Flavorsonlyyy]

What did you use?

[@PastmasterBuilds]

Just vegetable oil, sunflower oil in my case.

[@waelmostafa]

Is this could be use with a pistol ?

[@elanti-furrodelrancho3499]

​@@waelmostafait's tricky, but yeah, I recommend boiled linseed oil