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ED037128 - Lincoln UltraCore 309L P 1/16" Flux-Cored Stainless Wire 33lb

Packaging: 33 lb spool
$41.16/lb $679.14/33 lb spool only $20.58/lbSave 50%

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OVERVIEW

Superior Stainless Welding with UltraCore® 309L P

Take your stainless steel welding projects to the next level with Lincoln Electric's UltraCore® 309L P. This 1/16" flux-cored wire is a welder's dream, designed to tackle the common challenges associated with welding stainless steel and dissimilar metals. Whether you are welding stainless to mild steel brackets, repairing heavy equipment, or fabricating pressure vessels, the UltraCore® 309L P delivers professional results with exceptional ease of use. The 33 lb spool is perfect for industrial shops looking to maximize productivity and minimize downtime.

One of the standout features of this wire is its "operator appeal." Welders often struggle with spatter and stubborn slag when running flux-cored wires, but Lincoln Electric has engineered the 309L P to provide a buttery smooth arc and minimal spatter. The slag system is designed to release easily—often curling up and falling off on its own—which means you spend less time chipping and grinding and more time welding. The polished weld bead appearance it produces is aesthetically pleasing, often requiring little to no post-weld cosmetic work, which is a huge advantage in visible structural applications.

Versatility is key in a busy shop, and this wire delivers. It is rated for all-position welding, meaning you can handle vertical and overhead joints without changing consumables. The precision layer winding on the spool prevents tangles and ensures smooth feeding through your MIG gun liner, reducing the frustration of bird-nesting. Plus, the vacuum-sealed foil packaging guarantees that when you crack open a new box, the wire is fresh, dry, and ready to perform. Compatible with both straight CO2 and Argon blends, it fits right into your existing gas setup.

Why Choose UltraCore® 309L P?

  • Dissimilar Metal Expert: The go-to choice for joining carbon steel to stainless steel.
  • Clean Welds: Minimal spatter and easy slag removal keep your workpiece clean.
  • Consistent Feeding: Precision winding ensures a stable arc from the first inch to the last.
  • All-Position Capable: Weld flat, horizontal, vertical, or overhead with confidence.
Additional Information
Brand:Lincoln Electric
Diameter:1.6mm (1/16")
AWS Spec:E309LT1-1, E309LT1-4
Grade:309
Packaging:33 lb Spool
Weld Process:MIG (GMAW)
Material Composition:Stainless Steel
Wire Type:Gas-Shielded Flux-Cored
Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2
Welding Position:All Position
Polarity:DCEP
Trade Name:UltraCore® 309L P
Packaging Description:33 lb spool

INCLUDED

  • 33 lb Spool of UltraCore® 309L P Wire
  • Safe Use Guide
  • Vacuum Sealed Foil Packaging

APPLICATIONS

  • General Fabrication
  • Pressure Vessels
  • Joining Stainless Steel to Carbon Steel
  • Buffer Layers for Cladding
  • Petrochemical Industry Applications
  • Food and Beverage Equipment Repair

FAQ

You can use either 100% CO2 or a mixture of 75% Argon and 25% CO2. The mixed gas typically provides a smoother arc and less spatter.

Yes, the 'P' in UltraCore 309L P indicates it is designed for all-position welding, including vertical-up and overhead.

It is primarily used for joining dissimilar metals, such as welding 304 stainless steel to mild carbon steel, or as a buffer layer before hardfacing.

Yes, for flux-cored wires, knurled drive rolls are recommended to ensure positive feeding without crushing the tubular wire.

This specific product (ED037128) is 1/16 inch (approximately 1.6 mm) in diameter.

Flux-cored wire can absorb moisture. It should be stored in a dry, low-humidity environment. If opened, it is best to remove the spool and store it in a sealed bag or a rod oven if applicable.

It meets AWS A5.22 classifications E309T1-1, E309T1-4, E309LT1-1, and E309LT1-4.

Yes, as long as your machine has sufficient amperage output for 1/16" wire and is set up for flux-cored welding (knurled rolls, correct liner, DCEP polarity).

CATALOGUE & SPEC SHEETS

Safety Data Sheet