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1/8" x 16" 5LB ER70S-6 Mild Steel TIG Welding Rod Carbon Steel Filler Wire for Fabrication and General Shop Use
1/8" x 16" 5LB ER70S-6 Mild Steel TIG Welding Rod Carbon Steel Filler Wire for Fabrication and General Shop Use
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1, Premium Quality Carbon Steel TIG Rod ER70S-6 ensures high-strength welds for mild and low alloy steel fabrication.
2, Optimal Deoxidizers with high manganese and silicon content minimize porosity and improve weld metal quality on various materials.
3, Smooth Welding Performance offers a stable arc, low spatter, and a fast deposition rate, resulting in well-formed, clean weld beads.
4, Versatile Applications perfect for general shop use, construction, farm implements, tanks, truck bodies, and repair on steel with poor fit-up.
5, Standard Size includes 5 pounds of 1/8 inch (3.2mm) diameter by 16 inch (406.4mm) long filler rods, requiring 100% Argon shielding gas.
Q: What is the difference between ER70S-6 and ER70S-2?
Q: What is the difference between ER70S-6 and ER70S-2?
A: ER70S-6 is the best "General Purpose" rod.
ER70S-6 (This Product): Contains higher Silicon and Manganese. This helps the puddle flow better (wet out) and handles dirty/rusty metal or mill scale better than S-2.
ER70S-2: Contains Zirconium/Titanium. It is often used for high-purity x-ray quality welds on perfectly clean metal.
Verdict: For most shop repairs and structural fabrication, ER70S-6 is the preferred choice.
Q: Is 1/8-inch the right size for my project?
Q: Is 1/8-inch the right size for my project?
A: This is a Heavy-Duty filler rod.
Best For: Welding metal that is 1/8" (3mm) to 3/8" (9.5mm) thick. It is excellent for filling wide gaps or V-grooves.
Too Big For: Do not use this on thin sheet metal (like auto body or exhaust tubing). The large rod will chill the puddle and cause the wire to stick or freeze. For thin metal, use .045" or 1/16" rods.
Q: Why are the rods copper coated?
Q: Why are the rods copper coated?
A: The thin copper layer serves two purposes:
Rust Protection: It prevents the steel rod from rusting during storage in your shop.
Conductivity: It improves electrical transfer between the rod and the work/table if it accidentally touches.
Q: What shielding gas should I use?
Q: What shielding gas should I use?
A: You must use 100% Argon.
Do not use "C25" (75% Argon / 25% CO2). That is for MIG welding. Using CO2 with TIG will destroy your tungsten electrode instantly.
Q: Can I use these rods for Gas Welding (Oxy-Acetylene)?
Q: Can I use these rods for Gas Welding (Oxy-Acetylene)?
A: Yes, ER70S-6 is actually a very popular rod for Oxy-Fuel welding of mild steel because the deoxidizers help deal with the impurities introduced by the flame.
Q: Why do I see "glassy spots" on my finished weld?
Q: Why do I see "glassy spots" on my finished weld?
A: That is a good sign! The Silicon in the ER70S-6 rod brings impurities to the surface, which form little islands of glass (silica) on top of the weld. This means the impurities are out of your metal. You can simply wire brush or chip them off after the weld cools.
Q: Can I weld Stainless Steel with this?
Q: Can I weld Stainless Steel with this?
A: No. This is a Carbon Steel rod.
If you weld Stainless with this, the weld will rust almost immediately. Use ER308L for Stainless Steel.
Q: Can I weld Chromoly (4130) with this?
Q: Can I weld Chromoly (4130) with this?
A: Yes, in many cases. ER70S-6 is commonly used for welding 4130 Chromoly for non-heat-treated applications (like roll cages in some racing classes) because it is more ductile (less brittle) than the base metal. Always check your specific engineering requirements first.
