[SOLVED] Case Hardening a PC Case?

Jan 26, 2021
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Wondering if anyone has ever tried the case hardening effect on a computer case. The effect is often used on guns and I think the end result of blue-ish gold looks really nice. Is it safe to try this effect on a case? Will it even work? Is it unsafe around computer components? Corsair did something similar with their Dominator Platinum Torque Edition I think. I would like some feedback and thoughts on this idea.
 
Solution
If you intend to do this with heat? and it's just putting the finish on a steel case that you have in mind, it can be done in theory, although I've never seen it done on a PC case before

Just for a bit of background (the engineer in me can't help it): The blue patina is actually a color that you get when you're annealing steel, a process to make it softer and more ductile. It's the opposite to case hardening where you heat steel to cherry red in contact with carbon, aiming to increase the carbon content of the outer layer to increase it's hardness/reduce ductility, case hardening usually leaves you with an uneven black patina, like something fresh out a forge


If you do want to try it, there are two ways of getting the blue patina...
I've never tried it myself and would probably wait fro someone else to reply on the thread, but i would not test it with computer parts, and maybe just get an old case to try it on
 
If you intend to do this with heat? and it's just putting the finish on a steel case that you have in mind, it can be done in theory, although I've never seen it done on a PC case before

Just for a bit of background (the engineer in me can't help it): The blue patina is actually a color that you get when you're annealing steel, a process to make it softer and more ductile. It's the opposite to case hardening where you heat steel to cherry red in contact with carbon, aiming to increase the carbon content of the outer layer to increase it's hardness/reduce ductility, case hardening usually leaves you with an uneven black patina, like something fresh out a forge


If you do want to try it, there are two ways of getting the blue patina, both will only work on steel, and you would have to be able to remove all the hardware and plastic parts from the case first:

The first is with heat and would allow you to get a deliberately uneven patina where the color fades into the original color of the metal (like on the RAM you mention), to do this you would have to strip all the paint off first to avoid poisonous fumes and burnt paint spoiling your finish, then you would probably want to polish or brush the steel because a patina won't change the surface texture of the metal.
A blow torch would be the easiest and cleanest way to go, I would heat the metal from the inside so the soot and black isn't seen, the blue will form just before the metal starts to glow dull red, and don't let that happen because as soon as it does the steel will warp out of shape, go easy on the heat and do it in low light so you can see sooner when the metal starts to glow. Also, practice on some scrap sheet steel of a similar thickness first because getting the effect you're looking for without overheating and warping the plate will be tricky

The second method, the one used for guns, is a chemical patina, I've used a product called "Perma Blue" made by Birchwood Casey in the past. With this you don't need heat, but you might have difficulty getting an even color over something as big and flat as a PC case, and you won't be able to get the fade in fade out effect that you can get with heat, I'd recommend watching YouTube tutorials on how to blue guns to give you an idea on how this works, and again, practice first

If you try it, let me know how it goes, I'm interested 😉


and as for the corsair RAM, the color there is likely to be some kind of plastic film coating or print just to replicate the effect, because it would be very hard to do reliably and repeatably on a production line
 
Solution
If you intend to do this with heat? and it's just putting the finish on a steel case that you have in mind, it can be done in theory, although I've never seen it done on a PC case before

Just for a bit of background (the engineer in me can't help it): The blue patina is actually a color that you get when you're annealing steel, a process to make it softer and more ductile. It's the opposite to case hardening where you heat steel to cherry red in contact with carbon, aiming to increase the carbon content of the outer layer to increase it's hardness/reduce ductility, case hardening usually leaves you with an uneven black patina, like something fresh out a forge


If you do want to try it, there are two ways of getting the blue patina, both will only work on steel, and you would have to be able to remove all the hardware and plastic parts from the case first:

The first is with heat and would allow you to get a deliberately uneven patina where the color fades into the original color of the metal (like on the RAM you mention), to do this you would have to strip all the paint off first to avoid poisonous fumes and burnt paint spoiling your finish, then you would probably want to polish or brush the steel because a patina won't change the surface texture of the metal.
A blow torch would be the easiest and cleanest way to go, I would heat the metal from the inside so the soot and black isn't seen, the blue will form just before the metal starts to glow dull red, and don't let that happen because as soon as it does the steel will warp out of shape, go easy on the heat and do it in low light so you can see sooner when the metal starts to glow. Also, practice on some scrap sheet steel of a similar thickness first because getting the effect you're looking for without overheating and warping the plate will be tricky

The second method, the one used for guns, is a chemical patina, I've used a product called "Perma Blue" made by Birchwood Casey in the past. With this you don't need heat, but you might have difficulty getting an even color over something as big and flat as a PC case, and you won't be able to get the fade in fade out effect that you can get with heat, I'd recommend watching YouTube tutorials on how to blue guns to give you an idea on how this works, and again, practice first

If you try it, let me know how it goes, I'm interested 😉


and as for the corsair RAM, the color there is likely to be some kind of plastic film coating or print just to replicate the effect, because it would be very hard to do reliably and repeatably on a production line
I'll try both ways on a piece of practice steel and see which one works best / looks best. When i'm confident in what method i want to choose ill probably do this on something like an NZXT case since they're basically just squares. I'll let you know what happens when i can
 
Cool, maybe I'll try some experiments to

It's probably worth adding that after a bit of extra research about the chemical method, the chemical is more often used to repair blued surface on a gun, the whole bluing is usually done with a dip process that isn't possible with something as big as a PC case

This doesn't mean it wouldn't work, it would just be hard to make it even, and the other thing I forgot to add is when using the chemical method if you leave it on the surface to long it starts to give the metal a mated finish
ill probably do this on something like an NZXT case since they're basically just squares
Just make sure you find something that doesn't have any plastic parts molded onto it, you'll have to strip it down so there's nothing but steel
 

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