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

[SissySpike]

For the Knife conversation, I can go with this. But I don't think I would Extend this to Atomizers.

Sure, 440C is a Good Choice for a Surgical Scalpel. It has a One Time Use. Can be made Sterile thru Passivation. Cost of Material or Manufacturing is Not Relevant. And the demands that will be Placed on the Blade are pretty much Defined and Narrow.

But can the Same thing can be Said for a Everyday Carry or a Kitchen Knife? Trade Offs might be made say for Sharpness for Corrosion Resistance. Durability/Flexibility for Hardness. Cost verses Lifespan.

The are a Lot of Factors that go into the Choice of a Blade Material for a EDC or a Kitchen Knife. And people/OEM's Don't always Prioritize them in the Same Way.

But what about an Atomizer? What is the Single Greatest Factor that goes into the Choice of a Metallic Alloy? I would think it would be that it Doesn't "Rust" of exhibited Corrosion/Decomposition while in contact with e-liquids.

Most (just about All) Stainless Steels with satisfy the Requirements of an Atomizer with regards to Physical Durability, Appearance, Fabrication, Cost, Electrical/Magnetic Properties, etc. But some Stainless Steels have Superior "Rust" and Corrosion properties.

So to me, those Stainless Steels would be considered the "Best".



I not sure I would call myself a Metallurgist. Because it wasn't a Primary area of Expertise. But I do have a Background in Physical Manufacturing. And although it was Not the my Main area of Instruction, I did teach Metallurgy Courses on the College level.

I guess Im, old school thinking my best and most used knives are a butcher knife made from a lief spring and a folding Henry pocket knife. also has a carbon blade in it. They are alot more easier to maintain an edge on I can shave hairs on my arm with both knives.

 

[SissySpike]

Thrasher" data-source="post: 15779254" class="bbCodeBlock bbCodeBlock--expandable bbCodeBlock--quote js-expandWatch">

View attachment 457255

When did you get a hair cut?

 

[Alien Traveler]

Sure, 440C is a Good Choice for a Surgical Scalpel. It has a One Time Use. Can be made Sterile thru Passivation. Cost of Material or Manufacturing is Not Relevant. And the demands that will be Placed on the Blade are pretty much Defined and Narrow.

But can the Same thing can be Said for a Everyday Carry or a Kitchen Knife? Trade Offs might be made say for Sharpness for Corrosion Resistance. Durability/Flexibility for Hardness. Cost verses Lifespan.

Passivation does not provide sterility; you can sterilize any blade without problems by standard means.

And 440C is used for different types of knives, including kitchen ones. Pretty common steel for knives.

Boker offers Kitchen knife by Boker as Boker Gorm.
440C
Steel Types - Resources - Blade HQ

 

[Thrasher]

Whatever, keep using your kitchenaid ronco specials.

Then buy a real knife
Wüsthof USA - 8" Cook's Knife - 4582 / 20 cm

Tempered high carbon, can shave a gnats a,,
they blend their own steel

 

[jrlakeman]

I guess Im, old school thinking my best and most used knives are a butcher knife made from a lief spring and a folding Henry pocket knife. also has a carbon blade in it. They are alot more easier to maintain an edge on I can shave hairs on my arm with both knives.

I worked in fish cutting industry for 20 years+ i only use high carbon blades i cut bone and cartilage like butter and a few swipes on a steel its like a razor again. Stainless blades a few cuts and its a butter knife but it stays shiny i guess...

 

[Thrasher]

I worked in fish cutting industry for 20 years+ i only use high carbon blades i cut bone and cartilage like butter and a few swipes on a steel its like a razor again. Stainless blades a few cuts and its a butter knife but it stays shiny i guess...

Sounds like an old hickory man lol, thats all we use for fishing

Rusty as ell but slice through a phonebook

 

[zoiDman]

Passivation does not provide sterility; you can sterilize any blade without problems by standard means.

And 440C is used for different types of knives, including kitchen ones. Pretty common steel for knives.

Boker offers Kitchen knife by Boker as Boker Gorm.
440C
Steel Types - Resources - Blade HQ

Perhaps my wording wasn't the Greatest.

Yes, just about Any Metal can be Made "Sterile" in the Short Term.

As you know, passivation provides a Continues layer of Chromium Oxides at the Boundary Interface. Without such a Continuous layer of Chromium Oxides, would a Stainless Steel be More Susceptible to Contamination? And or the allowance of Non-Inert Interactions to occur with say Iron Oxides?

---

Sure, Lots of Kitchen knives are made from 4xx Series Stainless. But wasn't a Trade Off made for "Rust" Resistance for Edge Sharpness made over a High Carbon Steel?

Just like the Trade Off was made with High Carbon Steels for Brittleness over Lower Carbon Steels.

 

[zoiDman]

You could get some g-plat wire... it's supposed to be 317L stainless steel annealed welding wire.

But I'm sure that could rust in the right conditions as well.

Here is a little stuff about Annealing.

Anytime you heat a Steel to the point where it is about Cheery Red (or Hotter) and then let it cool own its own, you have Annealed the Steel.

Ultimate Hardness of a Steel is Directly Related to the Amount of Carbon it contains. (Steels range roughly from .1 to 1.8% Carbon) Annealing a High Carbon Steel, say from 1.2 to 1.8% Carbon can have a Dramatic Effect on the Steels Hardness. For Low Carbon Steels, <.6% or so, the Effect may be Small. Or Very Little at all.

The "L" on the end of 317L designates this to be a Low Carbon Stainless. So Annealing it doesn't have as much Effect, as a rule, as on a Higher Carbon Stainless.

BTW - Letting a Steel cool own its own from about Cheery Red will Anneal (Soften) the Steel is one Reason that your Drills Don't Last or Cut very well after you Sharpen them and Don't Plunge them in Water or Oil (Quench) to Cool the Cutting Tip.

The Other is that you Put a Bad Geometric Grind on them. But that Doesn't have anything to do with Metallurgy.

 

[Robino1]

Let's try to get this back on an E-cig related topic... K ?

I realize that we are talking about metals, but knives.... Can I vape with them? Maybe cut the steel into wire bits?

Thanks!

 

[zoiDman]

I worked in fish cutting industry for 20 years+ i only use high carbon blades i cut bone and cartilage like butter and a few swipes on a steel its like a razor again. Stainless blades a few cuts and its a butter knife but it stays shiny i guess...

Yeah... All my Kitchen knives are High Carbon Steel also.

I will Sacrifice having to Wipe the Blade off after Each use for the Higher Edge Performance I get from High Carbon Blades.

 

[zoiDman]

Let's try to get this back on an E-cig related topic... K ?

I realize that we are talking about metals, but knives.... Can I vape with them? Maybe cut the steel into wire bits?

Thanks!

Sorry... I was in the Process of Posting when you made the Off Topic Reminder.

No More Knife Talk for Me.

 

[CMD-Ky]

Let's try to get this back on an E-cig related topic... K ?

I realize that we are talking about metals, but knives.... Can I vape with them? Maybe cut the steel into wire bits?

Thanks!

Picky, picky picky always moving us back to a topic.

 

[USMCotaku]

Yeah...cut out all this knife talk
Sent with one hand, the other is busy vaping.

 

[Thrasher]

Well, that was cut short. I got to sharpen my knowledge with these slices of information though.

Too bad the mods cant hack it. I guess we all got the point though as we were walking the razors edge anyways.

I will just steel my nerves and continue to chop away at this rust issue I guess but I cant help but feel we are blindly slashing at the problem without a more hardened approach.

But I guess we can forge on ahead.

 

[USMCotaku]

Too......much........pun

Sent with one hand, the other is busy vaping.

 

[SissySpike]

Sorry... I was in the Process of Posting when you made the Off Topic Reminder.

No More Knife Talk for Me.

No he wasnt he winked at me and made a sassy face at you Robin when he posted that

 

[USMCotaku]

Oooohh, a pot stirrer
Sent with one hand, the other is busy vaping.

 

[Robino1]

Ohmygawd..... You all are just too cleaver for me

 

[ReigntheGamer]

Let's try to get this back on an E-cig related topic... K ?

I realize that we are talking about metals, but knives.... Can I vape with them? Maybe cut the steel into wire bits?

Thanks!

You can kill werewolves that are trying to steal your vape.

 

[SissySpike]

Ohmygawd..... You all are just too cleaver for me

We have honed our skills ..... Get it Honed