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ER308L 1/16" x 16" 5 LB Stainless Steel TIG Welding Rod Filler Metal for 304/308 Series & Cryogenic Applications
ER308L 1/16" x 16" 5 LB Stainless Steel TIG Welding Rod Filler Metal for 304/308 Series & Cryogenic Applications
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1, Premium Quality Low-Carbon ER308L stainless steel filler rod offers excellent resistance to intergranular corrosion, making it ideal for moderate corrosive environments.
2, Optimal TIG Performance Designed for the TIG (Gas Tungsten Arc Welding) process, providing a smooth arc, deep melt penetration, and achieving single-sided welding/double-sided forming.
3, Versatile Metal Compatibility Perfect for welding 304, 304L, 308, 308L, 321, and 347 stainless steel, covering a wide range of general-purpose applications.
4, Specific Size and Weight This package contains 5 pounds of welding rod, each measuring 1/16" (1.6mm) in diameter and 16" (406.4mm) in length, suitable for thin plate welding.
5, Wide Industry Use A reliable filler metal choice for petrochemical, food processing machinery, pressure vessels, and medical equipment where corrosion resistance is critical.
Q: Is 1/16-inch the right size for my project?
Q: Is 1/16-inch the right size for my project?
A: This is a Precision filler rod.
Best For: Thin wall tubing (exhausts/headers), sheet metal, and sanitary piping ranging from 18-gauge up to 1/8" thick.
Why use it? It requires less heat to melt than larger rods, which helps prevent warping on thin stainless steel.
Note: If you are welding thick plate (1/4" or thicker), step up to a 3/32" or 1/8" rod.
Q: What metals can I weld with this?
Q: What metals can I weld with this?
A: This rod is designed for the 300-Series Stainless family.
Compatible: 304, 304L, 308, 308L, 321, and 347.
Not Compatible: Do not use this to weld Mild Steel to Stainless (use ER309L) or for 316 Marine Grade Stainless (use ER316L).
Q: Can I use this for "Food Safe" welding?
Q: Can I use this for "Food Safe" welding?
A: Yes. ER308L is the standard filler metal for food processing equipment (like brewing tanks or kitchen tables).
Requirement: To be truly sanitary, the weld must be smooth (free of pits) and typically polished after welding to remove the heat tint.
Q: Why is my weld turning black and crusty on the back?
Q: Why is my weld turning black and crusty on the back?
A: This is called "Sugaring" (Granulation). It is not a defect in the rod.
Cause: Stainless steel reacts instantly with oxygen when hot.
Solution: You must "Back Purge" (fill the inside of the pipe/tank with Argon gas) or use Solar Flux on the back of the seam to protect it from air.
Q: Why is the weld slightly magnetic?
Q: Why is the weld slightly magnetic?
A: Do not panic—this is normal!
Explanation: While 304 stainless plate is non-magnetic, ER308L filler contains a small amount of Ferrite. This ferrite phase is necessary to prevent the weld from cracking as it cools. A slight magnetic pull on the weld bead indicates a strong, crack-resistant structure.
Q: What does the "L" in ER308L mean?
Q: What does the "L" in ER308L mean?
A: "L" stands for Low Carbon (0.03% max).
Benefit: This prevents "Carbide Precipitation" (internal rusting) near the weld joint. It ensures your stainless steel remains corrosion-resistant even after being subjected to the high heat of welding.
Q: What shielding gas should I use?
Q: What shielding gas should I use?
A: You must use 100% Argon.
Warning: Do not use C25 (MIG gas) or Carbon Dioxide. Even a tiny amount of CO2 will ruin the corrosion resistance of the stainless steel and turn the weld black.
Q: Can I use this rod for Oxy-Acetylene welding?
Q: Can I use this rod for Oxy-Acetylene welding?
A: No. TIG welding stainless requires an inert atmosphere (Argon). An Oxy-Acetylene flame produces carbon, which will contaminate the stainless steel and cause it to rust and crack.
