I have to re-read all with an Aussie accent to see if I fully agree ????
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Today we tested all the popular SUBs for 904L steel
- Thread starter puretime
- Start date
I have to re-read all with an Aussie accent to see if I fully agree ????
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- 24/10/17
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I think the quality of steels purchased by rep factories varies in batches. In working with duplex stainless steels for most of my career and specialise in machining and welding most kinds of stainless including 904L. We only test as we need independently test results and acquire material certificates for specific regulatory certification, these accurate tests can be costly in some cases.
Even though there are very expensive more accurate devices available these days We tend not to use hand held or portable spectroscopes, XRF or spark test in a non inert environment to accurately test grades of steels. Some of These devices are for rapid results, they can be qualitative and accuracy is highly dependent on the user/operator.
Don’t get me wrong I’m not saying these methods don’t work at all but they are not as accurate as some methods of lab testing.
In saying this I would assume that the 904 steel used by some factories would be borderline so the variance maybe be hard to detect by equipment that operates in a larger spectrum . Just my two cents and I’ve said this before.... Ive had ARF’s and other factories subs claiming 904L that had magnetic bracelets, crowns and bezels. And then I’ve had some that arnt....904L should not magnetise even through cold working like 316 sometimes can. I think depending on where they get their steel results would vary through batches and there’s probably not really a high level Of consistency with materials the rep industry. Most of the stainless we have purchased from China has unfortunately varied massively and to point in some cases where it was not useable
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Even though there are very expensive more accurate devices available these days We tend not to use hand held or portable spectroscopes, XRF or spark test in a non inert environment to accurately test grades of steels. Some of These devices are for rapid results, they can be qualitative and accuracy is highly dependent on the user/operator.
Don’t get me wrong I’m not saying these methods don’t work at all but they are not as accurate as some methods of lab testing.
In saying this I would assume that the 904 steel used by some factories would be borderline so the variance maybe be hard to detect by equipment that operates in a larger spectrum . Just my two cents and I’ve said this before.... Ive had ARF’s and other factories subs claiming 904L that had magnetic bracelets, crowns and bezels. And then I’ve had some that arnt....904L should not magnetise even through cold working like 316 sometimes can. I think depending on where they get their steel results would vary through batches and there’s probably not really a high level Of consistency with materials the rep industry. Most of the stainless we have purchased from China has unfortunately varied massively and to point in some cases where it was not useable
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Saturns
Known Member
- 3/6/20
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I thought what he said was: 2 confirmed fully 904 (ARF and ZF), 1 confirmed fully 316 (ZZF), all the rest are hybrids of 904 and 316
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crunchycarrot00
Active Member
- 14/6/18
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because you cant tell the difference by naked eye
And if anything, apparently 904L is inherently more yellow but because it takes on a "better" polish the effect is a bit of a wash.
It's all BS though because as soon as you get your skin's oils and whatever on it and it gets even a little dirty, you can't tell the difference anymore because all of THOSE factors matter far far far more
crunchycarrot00
Active Member
- 14/6/18
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The problem is 904L and 316L composition is vastly different. We're not talking small changes in alloying metal percentages. It's about having or not having copper, >10% absolute difference in nickel, having or not having phosphorous. So the "we got a bad batch" excuse is a bit of a cop out.
Personally I don't think 904L is "worth" any premium over 316L in both rep and gen form. If patek is fine with 316L, it's fine with me.
mari115
Respected Member
I asked that because there are people claiming that it's easy to spot the color of the steel (even if it seems BS to me).
And to prove that, if it's really true that there are some bracelet made of 904l with 316l clasps, no one ever realized it.
Under the same light someone should be able to spot the difference of color between the clasp and the rest of the bracelet if they are closely pay attention to it if that's the case.
Welp.
For sure it's scummy that the factories sold us something for something else,
I hope that they lower their price after we realized that lmao.
mari115
Respected Member
ZZF v2, that 316l steel looks amazingly good lmao, even if i dislike how they lied to us
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- 24/10/17
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I've tried to use Google Translate to translate this into English, but my computer melted. Could you try again?
On second thoughts, it doesn't matter.
Repworld
Mythical Poster
- 27/12/16
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Kalev007
I'm Pretty Popular
- 25/6/19
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That's not V3 its V2 has the old clasp (maybe the V2S 2836 as some called that V3 already months ago).
mari115
Respected Member
You never stop learning, thanks for telling me then! is there a proper video out? i just noticed the wrong clasp code
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