Curious about steel

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atkin68
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Curious about steel

Post by atkin68 »

When I first received the Jackson Egi I'm currently working on, I was struck by how light it felt in the hand. I was also struck by the way it behaved when filed. Just didn't feel like other SS cases I'd worked on. I'm much further along now and I'm working two different projects and I decided to try and age both with various improvised methods. Most recently I was putting them in a bath of hydrogen peroxide and then adding a splash of bleach and dipping the cases and then letting them dry and repeating. One is the Egi from Jackson, the other is an Invicta case. They've both been getting the same treatment for a few days, but look at the difference:

https://postimg.cc/2b3stFJ5
https://postimg.cc/XGhR6BSk
https://postimg.cc/JHk9r7RV

Edited by mod to include pics
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Image
Image

I do understand there are different formulations of SS, but I'm curious if those who know more of the nuances have any input on why the Jackson case is reacting and the Invicta case is not. BTW, I also put an older Jackson 6152 in the same mixture and it reacted more like the Invicta.

The other thing is the weight. When I saw this, I put them both on the kitchen scale and found the Egi case to weigh only 30% more than the Invicta. I would have expected it to weight nearly 2X as much or more.

I realize Jackson makes a Ti case for this watch, but that's not what I ordered and I don't know anything about titanium except I would not expect that I'd be able to shape/file it with the tools I have.

Would love any thoughts on this from the group.

Dave
Last edited by atkin68 on March 26th, 2020, 3:44 pm, edited 1 time in total.

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Re: Curious about steel

Post by Yoda »

I don't see the pictures, the issue is most likely on my side.
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Re: Curious about steel

Post by nje2791 »

I don’t see the pictures either.

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Re: Curious about steel

Post by atkin68 »

Sorry guys, I'm still figuring the pics out. Can you see them now?

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Re: Curious about steel

Post by Tanukjaju »

atkin68 wrote:
March 26th, 2020, 3:44 pm
Sorry guys, I'm still figuring the pics out. Can you see them now?
I’ve modified it to include pics. You can edit your original post to see the code.
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Re: Curious about steel

Post by Yoda »

I see them now, thanks!

It appears that the content of iron is the main reason here. Normally 316L SS would be the standard, then above standard depending on the maker

The more brown/rust, the more cheap material.
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Re: Curious about steel

Post by Tanukjaju »

I think you hit the nail on the head.... different types of steel... I suspect one is a 316L while the other is an easier to machine grade of steel that isn’t as corrosion resistant
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Re: Curious about steel

Post by Yoda »

Tanukjaju wrote:
March 26th, 2020, 4:11 pm
I think you hit the nail on the head.... different types of steel... I suspect one is a 316L while the other is an easier to machine grade of steel that isn’t as corrosion resistant
What he said! The softer one is the brown and cheap material.
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Re: Curious about steel

Post by atkin68 »

Thanks all for the input. I suppose since I'm trying to age this case that in some sense the poorer steel is an advantage. Having fun with the process. I have a display caseback on the way from @Kp0y, a lovely unitas 431 from @blueradish, my bubble plexi is ready, and today I received a killer camo leather strap for it from @Vesire! I need to get a CG lever worthy of the build still, and also a crown that will fit the 431 stem.

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Re: Curious about steel

Post by Emilio »

Just to be sure, which version is this, 52mm, 60mm?

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