How to Weld Duplex Stainless Steel

How to Weld Duplex Stainless Steel | TIG Welding

Рет қаралды 85,398

2 жыл бұрын

Learn how to weld duplex stainless steel using the TIG welding process with Luke Lewis. This 2" Schedule 10 duplex 2205 is tricky but today we give y'all some tips and tricks on this tutorial using 1/16" ER 2209 filler wire. We are going to do three penetrated tacks followed by a root pass and a cap pass.
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Пікірлер: 81

@weldtube Жыл бұрын

👇WeldTube Store👇 www.weldlife.com

@LikeAPetrol 2 жыл бұрын

Yesterday spent 1.5 hours to prepare two pieces of thick-walled pipe exactly for duplex. Can't wail Thursday to get some knowledge from my welding instructor. Thanks for vid Luke.

@that_cummins6.7 2 жыл бұрын

Been doing sch 10 2” stainless for the past month was definitely a learning curve, always glad to see new videos from you guys!

@austinhampton5674 Жыл бұрын

Hey, you got any advice to freehand 2in really struggling especially on position welds

@JesUs-qn1on 2 жыл бұрын

Been waiting for this re-upload

@freedomwelder2784 Жыл бұрын

Been welding 8”-24” s180 duplex for the last three months. Fun alloy to weld.

@idontstunt2613 2 жыл бұрын

Great stuff guys

@weldtube 2 жыл бұрын

👍👍

@arjun2489 2 ай бұрын

nice goog welding bro

@wondertetteh5237 10 ай бұрын

perfect❤❤❤

@cpnishadtigarcweldingtips8194 2 жыл бұрын

Good jop 👌👌👌I m India Weldar 🇮🇳🇮🇳DSS

@iron352 2 жыл бұрын

Good welding

@joshuamckenzie1670 2 жыл бұрын

Get em Luke

@paulmorrey733 2 жыл бұрын

Thanks

@georgematthews3222 2 жыл бұрын

Good 6g vid very instutiv what type of tungsten electrodes where you using zirconiaged or thoriated electrodes or does it really matter ,

@josiasfaundez1118 Жыл бұрын

Great ! What kind of tugsten did you use ? And what kind of filtre ?

@angelreyes4618 2 жыл бұрын

Hey can y’all do a review of the texas gold lens y’all have on the website, it seems legit , I just wanna see it in action lol

@ronaldherbert9201 2 жыл бұрын

Like that , Buddy....

@lawrencenanta9564 2 жыл бұрын

nice

@_trader123 Ай бұрын

muito top

@user-yf4pb8ef7z 2 жыл бұрын

good

@joaobatista-jm7kn Жыл бұрын

Valeu brother

@zenteno5p 2 жыл бұрын

What about when do you work out the shop with no foot pedal?

@NOOne-im5vg Ай бұрын

Are you just using pure argon for both shielding and purging ? The reason I ask, is that we have moved to 2.5% nitrogen in argon.

@6pekXX 2 жыл бұрын

The gap looks more like 3/16 or 5/32 to me IMHO :))) Nice weld though!

@TysonBeaulieu2001 2 жыл бұрын

I always loved watching your guys videos it’s always been a dream for me to Weld but I’m not good with math blueprints and I suck at remembering things easily I tried getting jobs no one hires me dreams are shattered so I just gave up

@everettfuller3571 2 жыл бұрын

No offense but “just gave up” is the reason nobody hires you. Keep your head on your shoulders and carry a better attitude about it. Tell them what you can do, not what you can’t do and they might wanna help you fix the issues you’re dealing with. With a mindset like that you’re only holding yourself back bud

@darmaraju6808 5 ай бұрын

How can you use MS chain for handling for this

@businessdougla6409 2 жыл бұрын

Great job guys.Been learning quite a bit.Keep up all the great work and also by welding all the different materials can you guys go through the different processes with these said materials as well as doing some combo welding with them?

@johnbrennan4759 Жыл бұрын

I used to weld S10 S/S for nuclear industry in the UK in the late 80s We used a square edge prep pulsed HI-LO tig keeping 1.6mm wire in the pool and Argon Hydrogen mix shielding gas

@darmaraju6808 5 ай бұрын

What is WPS for thise

@tonisiqueira9543 3 ай бұрын

Sim é uma boa demonstração de soldagem mais quero acrescentar que t para manter o padrão da soldagem deve ser necessário que o tungstênio mantenha o grau certo e a reposição de material de adição também pois o tubo vai mudando de grau conforme o seu contorno e se na técnica de Emerson do material fica bem escamada 👍🇧🇷🙏

@ratusamuelatokakece9754 Ай бұрын

For bottom wht is current to start off

@darmaraju6808 5 ай бұрын

What is heat in put

@evanchi9460 2 жыл бұрын

It's definitely a good bit more sticky/gummy than 304. If your job is going to be checking ferrite/austenite balance, be very careful to be as efficient as possible with heat input, and minimizing any given amount of material staying molten longer than absolutely necessary. Duplex is intentionally a matrix of austenitic and ferritic stainless, and they will precipitate out and sort into like structures the longer they stay molten. If the ferrite count is too high, it'll fail a hardness test and become extremely brittle. If it's skewed opposite, it'll fail an acid bath test.

@Tragicduck 2 жыл бұрын

How come they test for hardness for ferrite or acid bath for austenite? Do they do this in the field or would it be mostly for qualifying welders?

@evanchi9460 2 жыл бұрын

@@Tragicduck In my specific case, the boiling in an acid bath and hardness was done on qualifying coupons, the ferrite was done on every single weld before it left the shop, as it's done with a standard PMI gun. Of course the hardness and acid bath are destructive testing. Of course checking ferrite count with a PMI gun, you can have a pretty good idea how it will perform in the corrosion/hardness test based on the result, as it has a strong correlation.

@Tragicduck 2 жыл бұрын

That's super interesting. Where would this be used? I hear so far duplex is mostly for aerospace but we use it at my plant for filtration but never had to test for anything . What do you do if you don't mind me asking?

@evanchi9460 2 жыл бұрын

@@Tragicduck We made flow meters in a few material varieties. 316 was standard material, inconel/hastelloy for high temp, and 2207 Super Duplex for chloride pitting resistance. Think chemical plants, chlorine, seawater, etc, process fluids that just eat 316 up like it's nothing. Curious what aerospace applications it has!

@Tragicduck 2 жыл бұрын

I'd imagine quite a bit considering rocket probably have quite the array of chemicals on board to run lol, that's cool as hell man thanks for the info I love learning about metallurgical stuff

@eduardosifuentes3509 2 жыл бұрын

excellent work, important to be able to have subtitles in Spanish, this video does not have it.

@zenteno5p 5 ай бұрын

What about id you work at the field You go to carry your foot pedal?

@keithmartinez07 2 жыл бұрын

Done some of this duplex in Cali, it welds very nice but I didn’t have the luxury of a foot pedal

@kennytitcomb8133 2 жыл бұрын

What heat did you run? Gotta do some position welds w this stuff next week. Never messed w it

@darmaraju6808 5 ай бұрын

We can touch for MS do you no

@darmaraju6808 5 ай бұрын

I need to now freight test

@tomasalvarado207 2 жыл бұрын

😎👍

@jesussalinas5564 10 ай бұрын

No temperatures?

@jamesjack6769 2 жыл бұрын

I find it easier to hold the torch with my right hand all the way round. Also like a "Tig Finger" to avoid blisters. 😉

@kf8575 2 жыл бұрын

Get some time in welding left handed. Test pieces are the simplest part of the job. Wait until youve got a butt with steelwork, walls, other pipes etc etc in the way and you have to weld left handed, and getting some time jn left handed will definitely help you out👍

@jamesjack6769 2 жыл бұрын

Yeah, but the test piece qualifies you for the job and the dosh. 😁 Know what you're saying though, I can use my left hand out on site if I have to. No need for it in pipe shop with never ending "rolly polly" spools. 😉

@jamesjack6769 2 жыл бұрын

@@kf8575 Also, I would never put root tacks in a two inch exotic test pipe, Bridge tacks and a wedge for that wedding ring uniformity.😉

@jamesjack6769 2 жыл бұрын

It's all about confidence ,which takes a good while and lots of experience to achieve.

@kylejames255 Жыл бұрын

The dudes who cant weld left handed always get stuck fitting 90% of the time at the powerplant i work at. No point in a 6g cert if you get to the field and all the welds have to be welded left handed on one side.

@MrMAKRAM1212 2 жыл бұрын

what about the composition of Shielded Gas? Is it 100% Argon or What?

@kf8575 2 жыл бұрын

100% argon yes. With super duplex ie Xeron 100, then an addition of Notrogen to the purge gas will help stop the loss of nitrogen within the weld metal.

@LQ-C Жыл бұрын

Shouldn’t you use 100% N or 90% N + 10% H ?

@johnbrennan4759 Жыл бұрын

A good tip would be to snip the end of wire before restarting

@triumphofwill2819 8 ай бұрын

Not if you cool the wire in the shield gas area before removing it.

@funfun3437 5 ай бұрын

I'm a welder, too. If I were you, I'd do a half-keyhole welding. I'm korean

@ngoctutechwelding 2 жыл бұрын

Đoạn bắt đầu và điểm nối bạn thực hiện chưa thực sự tốt

@brenoferreira552 2 жыл бұрын

Hi guys, i'm from Uruguay. I was looking your page and i didnt find Pancake helmets, There is a chance of getting some of this from You? Or You aren't selling Pancake helmets yet? I hope You understand My Bad English.

@RobertWright-dn1lw 6 ай бұрын

That boy Luke don’t know how to walk

@jimwilson7364 2 жыл бұрын

Welded stainless for years easiest metal to weld but never used a cup that big for anything

@TigerNash21 Жыл бұрын

Duplex runs like cold molasses compared to stainless. There is a huge learning curve to duplex, alloy 20, hastelloy, etc

@jimwilson7364 Жыл бұрын

So basically you are using the foot pedal to make it a pulse tig

@mattiasarvidsson8522 Жыл бұрын

how can u know this advanced shit when looking that young? u started welding when 5y old ? ;)

@reo4778 2 жыл бұрын

Need to quarter your weld to prevent dogglegg

@Then.72 2 жыл бұрын

no different to welding 316L stainless or Inconel 600

@kf8575 2 жыл бұрын

Isnt much different from stainless other than being a bit less fluid, other than that youve just got to be careful with heat input thats all

@Then.72 2 жыл бұрын

@@kf8575 I’m not disagreeing but you’ve obviously got better eyesight because I don’t think Stainless is more runny than Duplex but I do notice a difference in welding alloys like Hastelloy

@kf8575 2 жыл бұрын

@@Then.72 i just meant it doesnt seem to want to flow as quickly without upping the amperage a touch. Other than that, i dont see the difference

@Then.72 2 жыл бұрын

@@kf8575 I use the same amps for these alloys but we aren’t all the same and I know welders I work with weld different to me and are very good