Panerai steel alloy

[SearChart]

Hey guys,

I was wondering about the steel alloy that Panerai uses for their cases.
I found that it is easier to scratch and different to polish than 316l from brands like Omega and Breitling, I have to adjust the polishing machine RPM in order to get the right finish.

904l (Rolex) gives me the best results though.

[The OG Beef]

316L


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[SearChart]

Originally Posted by The OG Beef

316L


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Yet it's different than steel from Omega and Breitling, who also use 316l

[nick c]

Tag heuer Also using 316L.

[brandrea]

I believe it’s 316 steel Bas

Edit:

http://www.panerai.com/en/collection..._pam00690.html

[SearChart]

Could there be different versions of 316l or is it all exactly the same? I swear it feels different when refinishing a Panerai.

[Cru Jones]

316L is 316L. If it were different, it wouldn't be 316L.

[Fredrik]

Originally Posted by SearChart

Could there be different versions of 316l or is it all exactly the same? I swear it feels different when refinishing a Panerai.

Steels usually have ranges for the non iron elements in it. For 316L the chromium, nickel and molybdenum content may vary a bit. A quick googling will show you this: 16-18% Cr, 10-14% Ni, 2-3% Mo.

My guess is that they simply use a different supplier and/or asked for specific properties.