RDA Rust on my RDA turning my entire cotton red (see pic )

[zoiDman]

who ever payed you to install it cause you going to pay for any damages incurred and down time to do it right.

all of that knowledge is above my pay grade to much for a knuckle dragger to retain.

All I'm trying to say is Just because someone Calls something "Stainless Steel", doesn't mean that it Can't Rust. And that Many OEM's will cut Corners when it comes to Material Selection.

High Chromium Stainless Steel is Hard on Cutting Tools and likes to Break Taps.

 

[Thrasher]

I broke a tap once. Now im banned from that bar...

 

[Cullin Kin]

This thread... Total win.

 

[SissySpike]

All I'm trying to say is Just because someone Calls something "Stainless Steel", doesn't mean that it Can't Rust. And that Many OEM's will cut Corners when it comes to Material Selection.

High Chromium Stainless Steel is Hard on Cutting Tools and likes to Break Taps.

I know your always teaching us cool stuff Zoid

 

[Miata GT]

If I let an rda sit for more than a few weeks I get the same thing. Pull the wick, rinse, dry burn, re-wick and enjoy!

 

[Stopfakn]

This thread has gone rust side up

 

[zoiDman]

I know your always teaching us cool stuff Zoid

I think it is Spill-Over from what I used to do for a Living.

LOL

 

[Alien Traveler]

If you Don't put any Nickel in a Steel that has 10.5% Chromium, the resulting Alloy is going to be Brittle. And if the Original Steel had more than about .8% Carbon, it is going to be Very Brittle.

Nope.
440C stainless steel: 17% chromium, 1-1.2% carbon, no nickel.
Often used for knives. Are knives very brittle?

 

[Asbestos4004]

Nope.
440C stainless steel: 17% chromium, 1-1.2% carbon, no nickel.
Often used for knives. Are knives very brittle?

I've got several with the tips broken off....and I know better than to doubt ZoiDman. He's pretty good about pre post fact checking. Unlike me.....

 

[littlejan]

Top about cotton changing color though. This is Japanese cotton with a juice that barely has any color to it. I built and wicked it this morning

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[ReigntheGamer]

Bah cleaning stuff is for girls.

 

[zoiDman]

Nope.
440C stainless steel: 17% chromium, 1-1.2% carbon, no nickel.
Often used for knives. Are knives very brittle?

True. 440C has no Nickel in it.

But it Does have Manganese and Silicon which help in Toughness while Reducing Brittleness. And it has Molybdenum which inhibits Grain Growth while Also helping with Toughness.

400 series Steels are not the Greatest Choice for "Rust" Resistance. In fact, they are on the Low end of the Scale. And not the Greats choice for a Knife Blade either.

A 300 Series such as 316L would be a Much Better choice for "Rust" Resistance due to its High Nickel content.

ETC: The last line should have Said "Nickel" and Not Chromium.

BTW - Here is a Nice Overview of what "Stainless" Steel is. Or Should be.

Stainless Steel FAQs | Mid America Stainless

2. What is the difference between 18/8 and 18/10 stainless steel?

The first number is the amount of chromium that is contained in the stainless, 18 is 18% chromium. The second number is the amount of nickel, 8 stands for 8% nickel. So 18/8 means that this stainless steel contains 18% chromium and 8% nickel. 18/10 is 18% chromium and 10% nickel. The higher the numbers the more corrosion resistant the material. 18/0 is a misleading designation. Both 18/8 and 18/10 contain nickel and are part of the grade family "300 series" stainless. 18/0 means that there is 18% chromium but zero nickel. When there is no nickel the stainless grade family is the "400 series". 400 series are not as corrosion resistant as the 300 series and are magnetic, where the 300 series are non-magnetic.

 

[ReigntheGamer]

True. 440C has no Nickel in it.

But it Does have Manganese and Silicon which help in Toughness while Reducing Brittleness. And it has Molybdenum which inhibits Grain Growth while Also helping with Toughness.

400 series Steels are not the Greatest Choice for "Rust" Resistance. In fact, they are on the Low end of the Scale. A 300 Series such as 316L would be a Much Better choice due to its Higher Chromium content.

As someone who checks MTR's (material test reports) on a daily basis, listen to Zoid.

 

[Asbestos4004]

True. 440C has no Nickel in it.

But it Does have Manganese and Silicon which help in Toughness while Reducing Brittleness. And it has Molybdenum which inhibits Grain Growth while Also helping with Toughness.

400 series Steels are not the Greatest Choice for "Rust" Resistance. In fact, they are on the Low end of the Scale. And not the Greats choice for a Knife Blade either.

A 300 Series such as 316L would be a Much Better choice for "Rust" Resistance due to its Higher Chromium content.

See? Doubting ZoiD is like ...... into a fan.

 

[zoiDman]

See? Doubting ZoiD is like ...... into a fan.

Hey I make Mistakes. And 400 Stainless is Better than a Non-Chromium Steel.

But it is Not the Best Choice for "Rust" Resistance.

 

[Thrasher]

Warm and moist?

Wait

What?



440 will rust fast in the right conditions just check my tackle box

 

[zoiDman]

Top about cotton changing color though. This is Japanese cotton with a juice that barely has any color to it. I built and wicked it this morning

Sent from my iPhone using Tapatalk

This looks Pretty Normal to Me.

BTW - Nice Looking Coils.

 

[littlejan]

This looks Pretty Normal to Me.

BTW - Nice Looking Coils.

Thanks man! Just getting into building twisted messes!


Sent from my iPhone using Tapatalk

 

[SissySpike]

Dose anybody know the trick to cutting stainless with a torch?

 

[sonicbomb]

Moisture, metal, rust, who would have imagined such a thing?
I try to run an RDA as dry as possible before putting it away for the day.
If I'm not planning on using it for more than a day, I pull the wick and dry burn it.