Safety Questions about SS316L for coils

[rokyo87]

Hello fellow vapers.

So, a few weeks ago I started using SS316L wire for TC coils. I read some posts on forums that is not recommended to dry burn SS coils because Chromium oxide layer can break and then Hexavalent Chromium can be released from metal. In the case of heating SS wire, when Hexavalent Chromium is released? During a dry burn? Or can be released even later during normal vaping? How we can restore this oxide layer which prevents metals from leaching into e-liquids and then into vapor?

Some people even said that we should't scratch or damage SS wire because that's how we destroy or damage protective oxide layer and then when we heat a wire during vaping metals can leach from metal into vapor and then we inhale them... But how is possible not to even scratch a wire when we make coils? I have a Coil master which is from SS and I must twist wire around Coil master if I want to make and form a coil. And when I am twisting wire around the Coil master I am rubbing one metal to another i.e. I am scratching it... Isn't a protective oxide layer formed again on the part where we damage wire?

If anyone has better information on this topic than I please write about it.

Thank you.

 

[93gc40]

Then don't get you coil so hot when dry burning..... it's not require to get them hot enough to see bright color... that just makes things easier.

I suggest cigarettes if the health risks of vaping bother you.

Sent from my SCH-I605 using Tapatalk

 

[rokyo87]

Then don't get you coil so hot when dry burning..... it's not require to get them hot enough to see bright color... that just makes things easier.

I suggest cigarettes if the health risks of vaping bother you.

Sent from my SCH-I605 using Tapatalk

I don't want to go to cigarettes I just want to minimise the risks from vaping if they exist and if I can. And I am asking the honest question.

 

[93gc40]

I don't want to go to cigarettes I just want to minimise the risks from vaping if they exist and if I can. And I am asking the honest question.

Yes there are risked to vaping..... most of the issues you ask about only happen under conditions that would be improper for vaping....much higher than normal vaping temperatures. so yeah there are risks and if you violate them that typically means you were doing something wrong..in the first place...

So avoid dry burning as much as possible.. when you do do it use the least heat you can to do the job.

Sent from my SCH-I605 using Tapatalk

 

[johnnyelevator]

Hello fellow vapers.

So, a few weeks ago I started using SS316L wire for TC coils. I read some posts on forums that is not recommended to dry burn SS coils because Chromium oxide layer can break and then Hexavalent Chromium can be released from metal. In the case of heating SS wire, when Hexavalent Chromium is released? During a dry burn? Or can be released even later during normal vaping? How we can restore this oxide layer which prevents metals from leaching into e-liquids and then into vapor?

Some people even said that we should't scratch or damage SS wire because that's how we destroy or damage protective oxide layer and then when we heat a wire during vaping metals can leach from metal into vapor and then we inhale them... But how is possible not to even scratch a wire when we make coils? I have a Coil master which is from SS and I must twist wire around Coil master if I want to make and form a coil. And when I am twisting wire around the Coil master I am rubbing one metal to another i.e. I am scratching it... Isn't a protective oxide layer formed again on the part where we damage wire?

If anyone has better information on this topic than I please write about it.

Thank you.

To my knowledge, there is no reliable information on the dangers (if any) of using ss wire. Just as there's no reliable information on all the other types of wire.

There's good information on using ss wire from advance vape supply. Follow their guide and you'll be fine.

 

[r055co]

Yes there are risked to vaping..... most of the issues you ask about only happen under conditions that would be improper for vaping....much higher than normal vaping temperatures. so yeah there are risks and if you violate them that typically means you were doing something wrong..in the first place...

So avoid dry burning as much as possible.. when you do do it use the least heat you can to do the job.

Sent from my SCH-I605 using Tapatalk

Dry burning SS is perfectly fine, the nasty toxins are released at the melting point.

As long as you pulse to red hot and not bright orange or white hot dry burning is perfectly fine.

Sent from my K88 using Tapatalk

 

[zoiDman]

Hello fellow vapers.

So, a few weeks ago I started using SS316L wire for TC coils. I read some posts on forums that is not recommended to dry burn SS coils because Chromium oxide layer can break and then Hexavalent Chromium can be released from metal. In the case of heating SS wire, when Hexavalent Chromium is released? During a dry burn? Or can be released even later during normal vaping? How we can restore this oxide layer which prevents metals from leaching into e-liquids and then into vapor?

Some people even said that we should't scratch or damage SS wire because that's how we destroy or damage protective oxide layer and then when we heat a wire during vaping metals can leach from metal into vapor and then we inhale them... But how is possible not to even scratch a wire when we make coils? I have a Coil master which is from SS and I must twist wire around Coil master if I want to make and form a coil. And when I am twisting wire around the Coil master I am rubbing one metal to another i.e. I am scratching it... Isn't a protective oxide layer formed again on the part where we damage wire?

If anyone has better information on this topic than I please write about it.

Thank you.

The Chromium Oxide Bonds that are formed at the Surface Boundary of SS Alloys are pretty Tough. And Not Easily broken via Casual contact.

Before you start worrying about Hexavalent Chromium being released, shouldn't you ascertain if Hexavalent Chromium is even present in the First Place?

 

[Chvaper]

Could be interesting to read,

E-cigarette chemistry and misinformation

 

[rokyo87]

What about nickel in SS? Nickel is carcinogenic, isn't?

 

[zoiDman]

What about nickel in SS? Nickel is carcinogenic, isn't?

Sure, Nickel exposure can be Bad.

But here's something to Think About. There aren't too many Metals that at some Level of Exposure are not going to Harm You.

The Key Word here is "Exposure". And the Key Concept is "How Much Exposure?".

If Nickel (or any Other Metal/Metal Alloy) isn't migrating into e-Liquids/Vapor, then How Relevant is a Metal's Relative Toxicity?

 

[rokyo87]

I agree with you @zoiDman but the problem is we don't know really if exposure is big enough to pose any health risk. Given the size of the coil I would say that there is no risk or is very small, especially with ordinary single coils for MTL, claptons and similar stuff are a little bigger... I don't know, I am not a material scientist, I am just speculating... There is a few options:

1. Metals are leaching into the e-liquid and migrating into the vapour and exposure is big enough to pose a health risk.

2. Metals are leaching into the e-liquid and migrating into the vapour and exposure is not big enough to pose any health risk.

3. Metals are leaching into e-liquid but not migrating into vapour.

4. Metals doesn't leach anywhere.

We must just figure it out which is right.

 

[classwife]

Moved you to Wick and Wire from Rebuildable Atomizer Systems

 

[rokyo87]

Oh and according to Pedro Carvalho chromium hexavalent can be formed above 650°C or 1200 F so dry burning of SS is not advised.

 

[zoiDman]

I agree with you @zoiDman but the problem is we don't know really if exposure is big enough to pose any health risk. Given the size of the coil I would say that there is no risk or is very small, especially with ordinary single coils for MTL, claptons and similar stuff are a little bigger... I don't know, I am not a material scientist, I am just speculating... There is a few options:

1. Metals are leaching into the e-liquid and migrating into the vapour and exposure is big enough to pose a health risk.

2. Metals are leaching into the e-liquid and migrating into the vapour and exposure is not big enough to pose any health risk.

3. Metals are leaching into e-liquid but not migrating into vapour.

4. Metals doesn't leach anywhere.

We must just figure it out which is right.

Here is my Thinking on all this.

It would be a Relatively Easy test to determine if something like Nickel was leaching into an e-Liquid. Just place a Nickel Coil into 4ml of e-Liquid, come back 24 Hours later and Test the e-Liquid.

Since the Internet has Not been On Fire with Positive Results (or Any Results for that matter), I think it is Pretty Safe to say that this test has been Done by many people and the Results were Negative.

As to Metals/Oxides in the Vapor, there have been a Few Studies that have said that Metals/Oxides were detected. But the Studies I saw were Flawed. Because they ran the Atomizers into the "Dry Hit" zone to achieve those Positive Results. And even Most of the Positive Results were Far Less than Smoking. In Most Cases, SIGNIFICANTLY Less than Smoking.

So... were kinda down to Backyard Scientist on reedit posting stuff with Little to No supporting Data.

I'm not say'n that there can't be the possibility that something like Nickel or Chromium IV can't be present in e-Cigarette Vapor. But if it was, in any Significant amount, I think we would have seen More Study Data on it.