BLUME® ER309L

✅ Low carbon formulation – Prevents carbide precipitation and resists intergranular corrosion
✅ Excellent dissimilar metal performance – Ideal for welding stainless to carbon or low-alloy steels
✅ Superior corrosion and oxidation resistance – Long-lasting protection in aggressive environments
✅ Stable arc & low spatter – Delivers clean, professional welds with less post-weld cleanup
✅ Bright, smooth weld appearance – Excellent bead profile and finish
✅ BLUME® precision consistency – Ensures flawless wire feed and repeatable performance

✔ Welding stainless to carbon steel or low-alloy steel
✔ Cladding and overlay work requiring corrosion-resistant surfaces
✔ Buffer layers prior to hardfacing
✔ Food, beverage, and chemical processing equipment
✔ Industrial piping and pressure vessels
✔ General stainless maintenance and fabrication

BLUME® ER309L Datasheet

Q: What is the difference between ER309 and ER309L?
A: The “L” stands for low carbon, which minimizes carbide precipitation during welding, providing superior resistance to intergranular corrosion — especially valuable for high-temperature or corrosive environments.

Q: Can BLUME® ER309L be used for stainless-to-stainless welding?
A: Yes – it performs well for 309, 304, and other stainless grades, but it’s particularly designed for dissimilar stainless-to-carbon applications.

Q: What shielding gas should I use with BLUME® ER309L?
A: Use 98% Argon + 2% Oxygen for a stable arc or 95–98% Argon + 2–5% CO₂ for deeper penetration and better wetting.

Q: Is BLUME® ER309L suitable for food-grade applications?
A: Absolutely – its low carbon content and clean chemistry make it ideal for food processing, dairy, and sanitary equipment fabrication.