can these tig tungsten weld stainless steel?

Yes its meant to weld stainless steel really good

Are these good for car repairs to replace body panels ?

To answer you question: Yes, many of your car restoration people will tell you that tig welding on body panels is much better than mig welding one. Due to the fact you will use less heat and filler on the panel so you will have less distortion on the panel you are working on. Ceriated tungsten are preferred, with thoriated tungsten as a second option. The diameters down to . 020, . 040 and 1/16-inch tungsten are popular, (ARCCAPTIAN welding). I hope this gives the answer you are looking for, God bless and keep on welding.

Do these tungsten electrodes work good for aluminum?

These are an all around great tungsten and weld aluminum very well.

I’m new to welding tig , don’t know what to order ! I'm going to weld aluminum what the best one to purchase?

The most common rule of thumb is 1 AMP per 0.001 of material thickness to get you in the ballpark of what should work. 1/8" is 0.125 thickness so 125 AMPs. <125 AMPs and using a 3/32 2% lanthanated tungsten works very well on most inverter-type TIG welders. You can weld almost anything with 3/32" though for at least a while. Welding on steel is DC though and much more forgiving and easier on the tungsten.

Arccaptain Tig Welding Tungsten Electrode 10 Pack 3 32x 7

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Description

⚡ Weld Like a Pro, Last Like a Legend!

VACUUM SEALED FRESHNESS - Oxidation-free packaging guarantees long shelf life and ready-to-use electrodes.
VERSATILE ALLOY COMPATIBILITY - Perfect for copper, nickel, titanium, and stainless steel welding projects.
UNMATCHED THERMAL SHOCK RESISTANCE - Weld thick aluminum plates without electrode splitting or failure.
OPTIMIZED FOR HIGH CURRENT DC WELDING - Delivers stable arcs and superior conductivity under demanding conditions.
PRECISION ENGINEERED FOR PEAK PERFORMANCE - Exact specs ensure consistent, reliable welds every time.

The ARCCAPTAIN TIG Welding Tungsten Electrode 10-Pack (3/32" x 7", Red WT20/EWth-2) offers premium-grade red tungsten electrodes engineered to AWS and DIN standards. Designed for high-performance DC TIG welding, these electrodes resist thermal shock, provide fast arc striking, and maintain a low burn-off rate. Ideal for professionals and enthusiasts welding a variety of alloys, they come vacuum-sealed to ensure longevity and peak performance.

Specifications

ASIN	B0BNPM34KL
Best Sellers Rank	#3,282 in Automotive ( See Top 100 in Automotive ) #2 in TIG Welding Equipment
Color	Red
Customer Reviews	4.7 4.7 out of 5 stars (1,082)
Date First Available	December 1, 2022
Item Package Quantity	1
Item Weight	7 ounces
Item model number	TIG Tungsten-Red 2.4mm
Manufacturer	ARCCAPTAIN
Material	Red Tungsten
Package Dimensions	8.5 x 2.36 x 0.39 inches
Part Number	TIG Tungsten-Red 2.4mm
Size	3/32"

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