PHOENISING
ER308L 1/8" x 16" 5LB Low-Carbon Stainless Steel TIG Welding Rod – Premium Filler for 304L, 321, and 347 Alloys
ER308L 1/8" x 16" 5LB Low-Carbon Stainless Steel TIG Welding Rod – Premium Filler for 304L, 321, and 347 Alloys
Couldn't load pickup availability
Request a Quote
* All fields are required
1, Low Carbon ER308L design maximizes resistance to intergranular corrosion in moderate corrosive environments and is suitable for cryogenic applications.
2, Compatible Filler Metal for TIG welding alloys like Stainless Steel 304, 304L, 308, 308L, 321, and 347.
3, Optimal Size specifications: 1/8" (3.2mm) diameter and 16" (406.4mm) length, packaged in a standard 5-pound quantity.
4, Versatile Use across diverse industries including food processing, medical equipment, petrochemical systems, and pressure vessel manufacturing.
5, Requires Shielding Gas such as 100% Argon or an Argon/Helium mixture for best results, ensuring a smooth, deep, and stable weld pool.
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 thick stainless steel plate, heavy wall pipe, or flanges ranging from 1/8" (3mm) to 3/8" (9.5mm) thick. It is designed to fill large gaps or grooves quickly.
Too Big For: Do not use this for thin auto body panels, kitchen sinks, or exhaust headers. The large rod will suck the heat out of the puddle and cause the wire to stick. For those jobs, use 1/16" or .045" rod.
Q: What metals can I weld with ER308L?
Q: What metals can I weld with ER308L?
A: This rod is the industry standard for joining 300-Series Stainless Steels.
Compatible Alloys: 304, 304L, 308, 308L, 321, and 347.
Note: Do not use this to weld Stainless to Mild Steel (use ER309L) or for Marine Grade 316 Stainless (use ER316L).
Q: What does the "L" stand for in ER308L?
Q: What does the "L" stand for in ER308L?
A: "L" stands for Low Carbon (0.03% max).
Why it matters: Lower carbon prevents the stainless steel from losing its corrosion resistance under high heat. This is critical for Food Service, Medical, and Brewing applications where rust at the weld seam is unacceptable.
Q: What gas is required?
Q: What gas is required?
A: You must use 100% Argon.
Advanced: For very thick material, some professionals use an Argon/Helium blend to increase heat penetration.
Do not use: C25 (MIG gas) or Nitrogen, as these will ruin the weld.
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" (Oxidation). Stainless steel reacts with oxygen when hot.
Solution: You must "Back Purge" the weld (fill the inside of the pipe or tank with Argon) or use Solar Flux on the backside to protect it from air. The rod is not at fault; it is a gas coverage issue.
Q: Why is the weld slightly magnetic?
Q: Why is the weld slightly magnetic?
A: This is normal! ER308L contains a small amount of Ferrite to prevent the weld from cracking as it cools. While the base metal (304 plate) is non-magnetic, the filler rod weld may attract a magnet slightly. This indicates a healthy, crack-resistant weld.
Common Mistakes
Q: Can I use this to weld Mild Steel to Stainless Steel?
Q: Can I use this to weld Mild Steel to Stainless Steel?
A: You can, but it is not recommended.
Using 308L on mild steel can result in a weld that cracks easily. The correct rod for joining Stainless to Mild Steel is ER309L.
Q: Why do I need to use a stainless steel brush?
Q: Why do I need to use a stainless steel brush?
A: You must clean your base metal with a dedicated Stainless Steel Wire Brush that has never touched carbon steel. If you use a carbon steel brush, you will embed iron particles into the stainless, causing the "rust-proof" weld to rust later.
