TIG Filler Rods

TIG filler rod is what makes smooth arcs, clean wetting, and strong joints possible. At Arccaptain, we stock TIG filler rod options for mild steel, stainless steel, and aluminum, so you can match the base metal, position, and finish without guesswork. 

Expect tight chemistry, steady feed, and sizes that help you control the puddle from thin sheet to thicker plate.

Make Welding Smoother with Arccaptain TIG Filler Rods in Every Project

TIG filler rods from Arccaptain support easy arc strikes, stable melting, and smooth bead stacking, so your welds look clean and professional with every pass.

Get reliable bead quality every time using TIG filler rods

• Uniform rod diameter for steady feeding and minimal arc wander
• Designed to produce smooth, even weld pools on thin and thick metal
• High-purity alloys reduce impurities and pore formation

TIG Filler Rods Support Multiple Metals and Styles for Welding Flexibility

Whether you are welding stainless steel, mild steel, or working with structural parts and sheet metal, these TIG filler rods are engineered for adaptability, durability, and seamless joins.

• Options for stainless, mild steel, and more
• Reliable performance across different shielding gas setups
• Compatible with both AC and DC TIG welding machines

Clean, easy welds that save time on cleanup and sanding

Consistent formulation in every rod means less spatter and residue, so joints need less post-weld work. TIG filler rods from Arccaptain help welders get the job done right on the first try and cut down on wasted effort.

• Minimal slag and easy slag-off for less surface cleanup
• Smooth bead finish for better strength and look
• Packaged for clean storage and simple jobsite use

TIG Filler Rods are Made for Welders Who Want Control

TIG filler rods help create controlled beads on tough or delicate projects, while boosting joint strength and cosmetic appeal.

Achieve precision and strength, even on delicate parts

• High heat resistance so rods maintain shape and control
• Works for everything from repair to industrial fabrication
• Easy-to-handle lengths fit all standard TIG torch setups

Build a Smarter TIG Setup With Arccaptain

• TIG Electrodes — Color-coded tungstens for steady starts and stable arcs.
• TIG Welder — Machines tuned for precise heat control and smooth beads.
• TIG Welding Wires — More filler choices to match alloys and thickness.

FAQs About TIG Filler Rods

What TIG filler rod should I use for mild steel?

Most welders prefer ER70S-6 filler rods for mild steel. This rod gives a good balance of strength, ductility, and smooth arc control. It also works well on slightly dirty or rusty steel because of its added deoxidizers. It’s the most common and reliable choice for everyday mild steel projects.

Can TIG filler rods be used on stainless steel and aluminum?

Yes, but you must use the right alloy for each metal. For stainless steel, ER308L is widely used because it matches common grades and keeps corrosion resistance. For aluminum, ER4043 and ER5356 are the top choices depending on whether you need smoother flow or stronger welds. Matching the filler to the base metal ensures strong and clean welds.

Can TIG filler rods be used on stainless steel and aluminum?

Select a rod diameter close to the thickness of the metal you are welding. Smaller rods, like 1/16", are best for thin sheet and detailed work because they help control heat. Larger rods, such as 3/32" or 1/8", are better for thicker joints since they add more filler quickly. Choosing the right size helps balance penetration, bead shape, and speed.

Are Arccaptain TIG filler rods easy for beginners?

Yes, Arccaptain TIG filler rods are beginner-friendly. They offer stable arc starts, consistent melting, and smooth flow, which help new welders focus on improving technique instead of fighting the rod. The rods are packaged to stay clean and dry, making them reliable to use. Many beginners find them a dependable option for learning and practice.