One of the very best tig cups for welding carbon steel, stainless steel, inconel and other nickel alloys, titanium, and cobalt alloys, is the Furick Jazzy 10 ceramic cup.
You will absolutely love the jazzy #10 ceramic cup.
The jazzy #10 ceramic cup has become one of my favorite cups for all around DC tig welding of steel, 4130 chromoly, stainless, inconel, and even some titanium jobs.
The unique cupped double layer screen diffuser is the special sauce that allows for a super long stickout along with superior gas coverage.
you dont always need a super long stickout but sometimes, being able to extend your electrode an inch and still get great argon coverage can allow you to reach some really tight spots...
down deep in holes, inside diamater of tubing, tight angles, etc.
If you are using a 17 style air cooled torch along with the standard cups that came with it, you will be stepping up your tig welding game with a jazzy 10 cup.
When I worked in the aerospace industry, I would order #12 ceramic cups from CNI and then I would have to cut my own diffuser screens and I would pay around 20 dollars per cup and still have to futz around with cutting screens to make the cups work.
The jazzy 10 cup is ready to go right out of the box... and it works way better than those CNI cups.
Base Material Type/Thickness - carbon steel tubing .120" (3.1mm)
Prep Method- flap disc
Filler Metal Type/Size - .045" ER70s-2
Tungsten size and prep - 3/32" (2.4mm) 30 degree taper
Gas Type and Flow Rate - argon 20-25 cfh
Cup size - jazzy 10 ceramic
Current/Polarity - 120 amps DCEN
Length of Arc - less than 3/32"
Angle of Travel - 20 degrees give or take a few degrees
Manipulation/Technique - dab and pause
Speed of Travel - 6 ipm