Tig finger just delivered in South Africa...was a few days ago! (Thanks Amazon) Doing a job today and my pinkie and ring finger lit up with a real sting (awkward overhead) after cussing remembered the tig fingers I had purchased from Jody's online store....man what a pleasure. If anyone is contemplating the spend...don't....it changes ur game. Great product!! Thanks Jody for all ur knowledge share. Best Craig
41 years of tig and building fuselages and other aircraft weldments ER70 S2 is my preferred rod.(unless specs. call for something else) Most light experimental aircraft are .035 wall except in the wing/gear attach and engine mount. Thanks for the vid Jody, always something to learn.
Your videos are very practical. We appreciate you! At the project level, you've made me a much better welder. Since I'm also an engineer, you've helped me and my colleagues understand and drink beer with the folks we hire to weld our projects. It makes things simpler on all of us.
"Squeezing your foot pedal between your knees". Haha Jody, that brought back memories. Me being 6'4" and climbing into various cars to build chassis. I remember such hits like: Sitting in the floor of the car, leaning back into the trunk area with the foot pedal wedged against the firewall, and, laying on the ground under the car with the footpedal right in the bend behind my knee.
Thanks for putting that out. I'm really trying to learn this stuff. I have a great bicycle design, but I need to learn how to weld, and more specifically 4130 tube!
Excelente video, no entiendo muy bien el ingles, pero las imagenes son muy buenas, gracias por brindar tu tiempo y conocimientos.Saludos desde Santa Fe, Argentina.
Love your videos. Appreciate the comment about working the pedal with your knees. Always fun welding on a chassis, upside down, laying across tubes, squeezing the pedal. Have used some fingertip controls. Like the slider better than the knob style. Still prefer the pedal.
Great work Jody, absolutely love your videos! I've been welding for nearly twenty years and still learn new things from your channel. The welding world appreciates you!
I love them tig fingers and 12 cups thanks for the tips and the gear. Love the pedal between the knees bit. Been there done that. Also used shoulder on it and knee pressing it on the frame of the machine.
When I welded Sprint Cars together in the 90's . We would send coupons to Boeing in Wichita to check. The best results were welded with ER80S gray wire ( No Copper Coating ) We also Used Linde 65 filler ( ER70 triple deoxidized ) for non critical component fabrication.
Hey Jody Could you do some tests on 4130 tubing purged VS not purged some time.maybe just some simple bend test. Really digging the content lately with ZANK and you talking about titanium and joint prep. Thanks for making such detailed welding videos.
Thanks for this... starting my fuselage next week. I don’t think I’ll have more than a handful of welds done in comfort like on a table. Funny; we practice on a bench/table but never actually get to work on them.
Hey Jody, I really like your response to the question of 4130 weld rod. Your viewer asked why not use 4130 filler rod? Your answer was brilliant.... that the JURY IS IN... after many years of test and practice. Dr. Einstein once made a similar comment to a student..... “Student: Dr. Einstein, Aren't these the same questions as last year's [physics] final exam? Dr. Einstein: Yes; But this year the answers are different.” I think you are the (Einstein of Welding Instruction).
I worked if a race car fab shop for awhile, they had us pre heat cm tube before welding, it allows the heat to stay in the weld longer, if it was cold in the shop, we post heated the welded area too boot... i guess we done ok....
Hello Jody. Enjoy watching your videos. I’m looking at buying an Everlast 210 ext or the 255ex , no sure which yet. My purpose is TIG welding body work and mainly aircraft tubing. My 1946 T-craft is mild steel but I’m curious about normalizing welding joints. I was reading on TIG and the writer went both ways. He says it needs to be done but sometimes more destructive than helpful. For a new welder it’s somewhat confusing. I thought the advantage to TIG was much less heat of base metals with no need to normalizing. Keep up the videos
love your videos you should wear a shirt that you sell for your channel instead of Under Armour unless they're paying you for advertising just saying keep the great videos coming and stay strong
What's the purpose of doing 2 passes? I would think 1 pass would be fine? Especially because of the thin wall. Curious. Thanks for the video. I'm getting ready to do my first cage on a drag bug I just picked up.
Out of position welds always end up being the most critical ones to do. Back when I was in college for welding, we had "Screwed Up Fridays" to put it lightly. Always ended up being out of position, 12" off the floor...was not a fun time.
Many thanks for the welding demo, very helpful. Do you ever entertain the idea of post weld heat treatment of 4130 welded tube joints. I would appreciate your views, thanks. K
Excellent video. That would be a great job for a furick cup so you can see better. Jody, question for you. Why on glass cups like the BBW furick cup do they recommend not using it on AC applications? If you are keeping the amperage below the 200 amps it is rated up to, what is the issue?
@@weldingtipsandtricks good information yet again. The longer I'm a welder the deeper im going into it. Metallurgy and the techniques and reasoning behind all these alloy steels is quite fascinating thanks again 😁👍
Thank you for a very informative video. I have a question: When you use 4130, do you have to worry about heat treating to bring it to published Tensile Strength? I'm not talking about stress relief here. In other words, do the tubes come hardened to the published strength, or do I have to harden them when i'm done?
Jody, I am just getting into welding I am going to be going to my first semester in school, you have a lot of accumulated experience. I am wondering what multi-process machine you might be able to recommend. I have my eye on a Miller MultiMatic 220 I am wondering if this would be the type of machine I can learn on then start a small Fabrication shop with or do I need to stick with a dedicated machine? As far as a single process machine they list parameters for machines but I don’t have the know how to determine if it’s enough for a dedicated shop machine. Stephen W.
I love your videos I’ve been watching a lot of them. I’m still new to tig welding. I’m having a little bit of a hard time remembering all of the types of tungsten to use. Can you use the colors as well. Please and thank you. I know that’s extra work for you but it would might help out me and some others in remembering what colors go with what. I’m learning as I go. Is there a better way to learn this or should I spend the time and remember the types you’re teaching us. Thanks again. Ps love my tig finger. 😃😃😃😃😃😃😃😃
Can you do a TIG vs MIG video on thin wall chromoly tubing? MIG is very common overseas on chassis with great succes. Maybe do some basic strength testing on the welded pieces. Would like to here youre opinion on this.
I'm a TIG welder too. I like to use maintenance alloy rod like ER312 on Chrome moly steel. High Tensile and 30% elongation. What is your take. Is it better or worse?
Some vintage aircraft used a combination of 4130 and 1025 tubing and channel pieces in the fuselage and some flight controls. Do you have any pointers for welding these materials to eachother?
First off, I'd like to say that I really enjoy your videos! I was also wondering if in your opinion there is any advantage to learning tig welding using a standard collet body setup as opposed to starting out with a gas lens setup?
Hi, im a current welder at eone. I was just wondering if you could maybe to a video on blending tacks, and how to start on tacks and stuff like that if possible or something along those lines.. i know you did a start stop video but when i try to start on a tack it always lumps up no matter if i start before after ontop of.. was just wondering if there was anything maybe i didnt think of
Olá tudo bem professor ? Preciso soldar um trem de pouso de um avião Ipanema que veio a trincar em forma de U . Material de base é o 4130 . No Brasil está sendo difícil encontrar a vareta de solda tig 4130 . Tenho que usar essa vareta 4130 em específico ou eu posso usar a vareta er80 ? O trem de pouso só avião não rompeu mas trincou na parte superior sem muitas avarias e ainda está operando mesmo trincado , tem necessidade de fazer um reforço em volta do trinco ? Mas se eu fazer um reforço eu posso retirar a resistência do trem de pouso ? Ou eu só efetuo a soldagem no trinco ? O trincado tem 150 milímetros linear , sendo 40 milímetros X 60 milímetros X 50. Obrigado .
Nice vid ! Unrelated question. What is a decent square tubing bender for someone with a small home hobby shop ? Thanks in advance for any direction you can offer
Random question. Would putting a chiller on the argon supply help keep the heat affected zone down to the size of the arc? Could it potentially cause more cracking and stress? The thought would be a water cooler like used on the torch but ice bucket with a long coil..
I'd think that the shield gas, coming from a high pressure tank through a regulator and out to ambient pressure, would already be much cooler than the room. At least until it hits the arc and hot metal. But the idea of actively cooling outside the melt zone is interesting.
I have a small iron table, it's for a small metal cutting band-saw, the edges are beat up with one two inch section broken off and I have the that piece. I would to like to reattach it to the table ,however I don't have the means to silicon bronze of nickle braise. I do have map gas, propane and silver solder.(for plumbing) The broken edge in question is not in a high stress area its the back left corner. Is it possible and or safe to silver solder cast/ductile iron? Also are there any actual times when would you want to silver solder cast/ductile iron?
I have to ask, I'm learning to tig weld by hands on no tig experience, only experience I have is with oxy acetylene, and I work at a ship yard where everything is coast guard inspected so everything has to be specific, I have most of my experience in mig welding aluminum and I can do that just fine, come time for inspection of the hull, there are some welds where we have to come over and blend with tig, (possible pinholes, corners not tied in etc) so my first time ever holding a tig torch was here, thinking it was pretty much the same as oxy acetylene, but I guess I should get to my question. Why does the filler that we use, 1/8, melt and ball before it touches the puddle? Has this happen to me pretty much every time and I've tried adjusting amperage but it seems like I can't avoid it, any ideas?
I have a question when im practicing a vertical plate test 3/8 plate with 1/4 backing strip and when i start the root pass im going good and about an inch before finishing the rootpass the electrode starts to blow up and arc like if i have excess arc but im keeping a tight arc so im confused, why would it start that what am i doing wrong? Im on 115 amps 7018 rod 1/4
It’s nothing you are doing it’s magnetization in the metal, try moving your ground clamp around or hitting the plate with a hammer (not within the weld zone of course). I am currently in welding school and I had that happen when I was running 3/8’s and 1” and I hated it when it happened. And it only seems to happen on 3G, 3F.
Question for anyone, I have an older BMX bike made of 4130 chromoly. It has a crack on the top tube just behind the stem. It is continuous all the way around and through. Basically looks like someone cut through it with a reciprocating saw. I own a MIG so my questions are: One, can it be fixed with MIG vs TIG? And two, if so do you think it would be strong enough to use?
Normalizing would strengthen your heat affected zone. It's only necessary if your design parameters require that extra strength (better off not depending on it), and it also might alleviate some residual stresses in a tube structure.
Man thank you thank you. Please dont stop these videos. We appreciate your work.
Tig finger just delivered in South Africa...was a few days ago! (Thanks Amazon) Doing a job today and my pinkie and ring finger lit up with a real sting (awkward overhead) after cussing remembered the tig fingers I had purchased from Jody's online store....man what a pleasure. If anyone is contemplating the spend...don't....it changes ur game. Great product!! Thanks Jody for all ur knowledge share. Best Craig
41 years of tig and building fuselages and other aircraft weldments ER70 S2 is my preferred rod.(unless specs. call for something else) Most light experimental aircraft are .035 wall except in the wing/gear attach and engine mount. Thanks for the vid Jody, always something to learn.
Your videos are very practical. We appreciate you! At the project level, you've made me a much better welder. Since I'm also an engineer, you've helped me and my colleagues understand and drink beer with the folks we hire to weld our projects. It makes things simpler on all of us.
"Squeezing your foot pedal between your knees". Haha Jody, that brought back memories. Me being 6'4" and climbing into various cars to build chassis. I remember such hits like: Sitting in the floor of the car, leaning back into the trunk area with the foot pedal wedged against the firewall, and, laying on the ground under the car with the footpedal right in the bend behind my knee.
enjoyed the vid. I'll have to pick up one of those 12's.
It'd be nice to see your take on the cup, like you did with your sib video. Always enjoy watching both of your guys videos👍👍
@@jdbrewer6638 I agree, love and watch every video of these two creators. Thanks Jody...
Thanks for putting that out. I'm really trying to learn this stuff.
I have a great bicycle design, but I need to learn how to weld, and more specifically 4130 tube!
The best welding channel on TH-cam, always pick up something.
I know it's a few years down the road from when you posted it, but still a great video that explains a lot. Love the filler metal info.
Nice beads... I appreciate all the free welding videos.
Excelente video, no entiendo muy bien el ingles, pero las imagenes son muy buenas, gracias por brindar tu tiempo y conocimientos.Saludos desde Santa Fe, Argentina.
Love your videos. Appreciate the comment about working the pedal with your knees. Always fun welding on a chassis, upside down, laying across tubes, squeezing the pedal. Have used some fingertip controls. Like the slider better than the knob style. Still prefer the pedal.
Great work Jody, absolutely love your videos! I've been welding for nearly twenty years and still learn new things from your channel. The welding world appreciates you!
That tin foil above a tight angle joint is a good trick, I’ll have to try that!
I don’t weld, and I probably will never do, but I enjoy your videos!
I love them tig fingers and 12 cups thanks for the tips and the gear. Love the pedal between the knees bit. Been there done that. Also used shoulder on it and knee pressing it on the frame of the machine.
When I welded Sprint Cars together in the 90's . We would send coupons to Boeing in Wichita to check.
The best results were welded with ER80S gray wire ( No Copper Coating )
We also Used Linde 65 filler ( ER70 triple deoxidized ) for non critical component fabrication.
Best teacher I have seen
Another great video Jody!! Thanks for sharing your technique!!
JD Brewer thanks JD
Very very well done Jody!!! Thank you.
Fantastic video as always, thank you! I especially enjoyed the “why” section at the end, very helpful!!
very good lesson and info, I am still learning and need it ..thanks..
Straightup here it is vid ....love it 😎👍
Awesome video. Great instruction and information. 👍
You do a really clean welding. Omg goooood!
Ok. You sold me on the 12 cup. Heading over to your store now lol. Great video. I always end up cooking the thing and "gray" it up with smut
So grateful for your kind and talented ways mate. So very helpful to so many.
Thank you for another great video, Jody.
A very good video, and very informative.
Love that #12 furick cup for stainless - the shielding is considerably improved vs a #8 gas lens. It's pretty durable as well.
Very good info Jody. Thank you
Thank you for the video. Very informative as usual
Thanks for all you do. 👍
Great information
Hey Jody Could you do some tests on 4130 tubing purged VS not purged some time.maybe just some simple bend test.
Really digging the content lately with ZANK and you talking about titanium and joint prep.
Thanks for making such detailed welding videos.
I believe that chromium oxide would be an issue good request though I would like to see it myself
A lot of great information, thanks!
Thanks sir for your kind
Thanks for this... starting my fuselage next week. I don’t think I’ll have more than a handful of welds done in comfort like on a table. Funny; we practice on a bench/table but never actually get to work on them.
Hey Jody, I really like your response to the question of 4130 weld rod. Your viewer asked why not use 4130 filler rod? Your answer was brilliant.... that the JURY IS IN... after many years of test and practice. Dr. Einstein once made a similar comment to a student.....
“Student: Dr. Einstein, Aren't these the same questions as last year's [physics] final exam?
Dr. Einstein: Yes; But this year the answers are different.”
I think you are the (Einstein of Welding Instruction).
Keep it up great works
Thanks Jody
Great job
love all your videos please could you do a video on welding hi strength steel docol r8
Thank you for the video.
Nice video
I worked if a race car fab shop for awhile, they had us pre heat cm tube before welding, it allows the heat to stay in the weld longer, if it was cold in the shop, we post heated the welded area too boot... i guess we done ok....
Very good
Sir nice video thank you for giving advice. I have a question.
Impact wrench machine socket also same TIG welding or steel rode welding?
Hello Jody. Enjoy watching your videos. I’m looking at buying an Everlast 210 ext or the 255ex , no sure which yet. My purpose is TIG welding body work and mainly aircraft tubing. My 1946 T-craft is mild steel but I’m curious about normalizing welding joints. I was reading on TIG and the writer went both ways. He says it needs to be done but sometimes more destructive than helpful. For a new welder it’s somewhat confusing. I thought the advantage to TIG was much less heat of base metals with no need to normalizing. Keep up the videos
love your videos you should wear a shirt that you sell for your channel instead of Under Armour unless they're paying you for advertising just saying keep the great videos coming and stay strong
What's the purpose of doing 2 passes? I would think 1 pass would be fine? Especially because of the thin wall. Curious. Thanks for the video. I'm getting ready to do my first cage on a drag bug I just picked up.
Out of position welds always end up being the most critical ones to do. Back when I was in college for welding, we had "Screwed Up Fridays" to put it lightly. Always ended up being out of position, 12" off the floor...was not a fun time.
Many thanks for the welding demo, very helpful. Do you ever entertain the idea of post weld heat treatment of 4130 welded tube joints. I would appreciate your views, thanks. K
Another super helpful video Jody. Was wondering if the lanthenated is the only choice here.
ChrisB257 I use 2% lanthanated for everything just to keep things simple. But there are a lot of options. Ceriated and e3 for example
Cheers Jody
Thank you
Excellent video. That would be a great job for a furick cup so you can see better. Jody, question for you. Why on glass cups like the BBW furick cup do they recommend not using it on AC applications? If you are keeping the amperage below the 200 amps it is rated up to, what is the issue?
kkash72 2 main reasons. 1. AC can arc out the screen diffuser
2. AC gets the electrode too hot which can melt the diffuser grommet
@@weldingtipsandtricks good information yet again. The longer I'm a welder the deeper im going into it. Metallurgy and the techniques and reasoning behind all these alloy steels is quite fascinating thanks again 😁👍
I still wonder how you get those arc shots. I have tried to get good video and it never ends up working. love your videos
Thank you for a very informative video.
I have a question: When you use 4130, do you have to worry about heat treating to bring it to published Tensile Strength? I'm not talking about stress relief here. In other words, do the tubes come hardened to the published strength, or do I have to harden them when i'm done?
Jody, I am just getting into welding I am going to be going to my first semester in school, you have a lot of accumulated experience. I am wondering what multi-process machine you might be able to recommend. I have my eye on a Miller MultiMatic 220 I am wondering if this would be the type of machine I can learn on then start a small Fabrication shop with or do I need to stick with a dedicated machine? As far as a single process machine they list parameters for machines but I don’t have the know how to determine if it’s enough for a dedicated shop machine. Stephen W.
3:45 snicker, snicker "pump" bwahahaha Awesome video Jody, as usual!
I love your videos I’ve been watching a lot of them. I’m still new to tig welding. I’m having a little bit of a hard time remembering all of the types of tungsten to use. Can you use the colors as well. Please and thank you. I know that’s extra work for you but it would might help out me and some others in remembering what colors go with what. I’m learning as I go. Is there a better way to learn this or should I spend the time and remember the types you’re teaching us. Thanks again. Ps love my tig finger. 😃😃😃😃😃😃😃😃
Jody says he uses 2% Lanthinated on everything
have you herd of Docol tubing ive herd it welds more like mild steel but lighter like chrome moly maybe you could do a video on that
So no need for preheating or post heating?
Can you do a TIG vs MIG video on thin wall chromoly tubing? MIG is very common overseas on chassis with great succes. Maybe do some basic strength testing on the welded pieces. Would like to here youre opinion on this.
I'm a TIG welder too. I like to use maintenance alloy rod like ER312 on Chrome moly steel. High Tensile and 30% elongation. What is your take. Is it better or worse?
Some vintage aircraft used a combination of 4130 and 1025 tubing and channel pieces in the fuselage and some flight controls. Do you have any pointers for welding these materials to eachother?
First off, I'd like to say that I really enjoy your videos! I was also wondering if in your opinion there is any advantage to learning tig welding using a standard collet body setup as opposed to starting out with a gas lens setup?
Hi, im a current welder at eone. I was just wondering if you could maybe to a video on blending tacks, and how to start on tacks and stuff like that if possible or something along those lines.. i know you did a start stop video but when i try to start on a tack it always lumps up no matter if i start before after ontop of.. was just wondering if there was anything maybe i didnt think of
thanks jody.enjoyed yr greet video.. i have question..if we hav stick welding machin n same condistion can we weld same in dis cas?
Would you need the furick cup for mild steel tubing
Hey I have a miller 325 trailblazer it doesn’t have the foot pedal but is that ok?
What amperage did you use on that tube?
Welding aircraft tubing 4130 can you mig weld the tubing with 310 stainless .030 wire ? Love the video !
can u film ur foot as well? just to see the idea of tig welding. for now, im learning mig
Olá tudo bem professor ? Preciso soldar um trem de pouso de um avião Ipanema que veio a trincar em forma de U . Material de base é o 4130 . No Brasil está sendo difícil encontrar a vareta de solda tig 4130 . Tenho que usar essa vareta 4130 em específico ou eu posso usar a vareta er80 ? O trem de pouso só avião não rompeu mas trincou na parte superior sem muitas avarias e ainda está operando mesmo trincado , tem necessidade de fazer um reforço em volta do trinco ? Mas se eu fazer um reforço eu posso retirar a resistência do trem de pouso ? Ou eu só efetuo a soldagem no trinco ? O trincado tem 150 milímetros linear , sendo 40 milímetros X 60 milímetros X 50. Obrigado .
Is there a benefit from an internal purge?
Jody, have you ever heard of or done any vacuum glove box welding? I would like to hear about that. I really enjoy your videos.
Nice vid ! Unrelated question. What is a decent square tubing bender for someone with a small home hobby shop ? Thanks in advance for any direction you can offer
Random question. Would putting a chiller on the argon supply help keep the heat affected zone down to the size of the arc? Could it potentially cause more cracking and stress? The thought would be a water cooler like used on the torch but ice bucket with a long coil..
I'd think that the shield gas, coming from a high pressure tank through a regulator and out to ambient pressure, would already be much cooler than the room. At least until it hits the arc and hot metal. But the idea of actively cooling outside the melt zone is interesting.
I have a small iron table, it's for a small metal cutting band-saw, the edges are beat up with one two inch section broken off and I have the that piece. I would to like to reattach it to the table ,however I don't have the means to silicon bronze of nickle braise. I do have map gas, propane and silver solder.(for plumbing)
The broken edge in question is not in a high stress area its the back left corner.
Is it possible and or safe to silver solder cast/ductile iron? Also are there any actual times when would you want to silver solder cast/ductile iron?
I have to ask, I'm learning to tig weld by hands on no tig experience, only experience I have is with oxy acetylene, and I work at a ship yard where everything is coast guard inspected so everything has to be specific, I have most of my experience in mig welding aluminum and I can do that just fine, come time for inspection of the hull, there are some welds where we have to come over and blend with tig, (possible pinholes, corners not tied in etc) so my first time ever holding a tig torch was here, thinking it was pretty much the same as oxy acetylene, but I guess I should get to my question. Why does the filler that we use, 1/8, melt and ball before it touches the puddle? Has this happen to me pretty much every time and I've tried adjusting amperage but it seems like I can't avoid it, any ideas?
Excelente material
Concuerdo con que si se podrían colocar los subtítulos en español ayudaría mucho
hey jody, awesome video, like everytime! Do you ship your products to germany?
Aerospace uses 4130 rod on smaller parts that get heat treat and MPI after welding.
F0XD1E yes they do. Forgot to mention that smaller parts that need heat treatment are welded with 4130 so weld metal will respond
@@weldingtipsandtricks
Thanks Jody 👍
Great content as always
Argón 100% for welding chromoly ???
Jody
can we mig weld chrome molly ??
Hola, muy buen video, pero será posible que hagas tus vídeos con subtítulos en español? Es muy buen material para usar en los colegios tecnicos
Tacos?
What were those gloves at the beginning
For the multi pass proces are the joints beveled?
Is this kind of material also used in pipe fabrication? Like power/ nuclear plants?
How about ER70S2 vs S6? Any thoughts on using one or another?
I have a question when im practicing a vertical plate test 3/8 plate with 1/4 backing strip and when i start the root pass im going good and about an inch before finishing the rootpass the electrode starts to blow up and arc like if i have excess arc but im keeping a tight arc so im confused, why would it start that what am i doing wrong? Im on 115 amps 7018 rod 1/4
It’s nothing you are doing it’s magnetization in the metal, try moving your ground clamp around or hitting the plate with a hammer (not within the weld zone of course). I am currently in welding school and I had that happen when I was running 3/8’s and 1” and I hated it when it happened. And it only seems to happen on 3G, 3F.
Way back when I was welding in the aircraft industry oxy/acetylene was required even when heliarc was available
That sounds like a long proven process vs. a better but not as thoroughly demonstrated process.
@@hanelyp1 ...it may seem that way but from my understanding oxy/acetylene is still very commonly used...
Question for anyone,
I have an older BMX bike made of 4130 chromoly.
It has a crack on the top tube just behind the stem. It is continuous all the way around and through. Basically looks like someone cut through it with a reciprocating saw.
I own a MIG so my questions are:
One, can it be fixed with MIG vs TIG?
And two, if so do you think it would be strong enough to use?
Do you not have to back purge the inside of chrom tubing?
Have you ever brazed 4130 using silicone bronze rods? Would love to know your insights on that technique.
Have any suggestions for a MIG root in position (no rollout) 5g? I’m having trouble dripping through at 12 and eating hot metal at 6
What about stainless filler
How would you normalize a part like that after welding? When is normalizing necessary?
Normalizing would strengthen your heat affected zone. It's only necessary if your design parameters require that extra strength (better off not depending on it), and it also might alleviate some residual stresses in a tube structure.