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EX309L-125T - Exocor Executive ER309L Stainless TIG Rod 1/8" (3.2mm) - 10lb

Packaging: 10lb tube
$23.00/lb $143.80/10lb tube only $14.38/lbSave 37%

In stock

SKU: EXER309L-18 Categories: ,

OVERVIEW

Premium Grade ER309L TIG Filler Metal for Industrial Fabrication

The Exocor Executive ER309L TIG Rod (3.2mm / 1/8") represents the pinnacle of stainless steel filler metal quality, designed specifically for critical industrial applications requiring the joining of dissimilar metals. As part of the Executive series, these rods are manufactured with stringent quality controls to ensure consistent chemistry, diameter precision, and surface cleanliness. This attention to detail translates directly to improved productivity on the shop floor, reducing downtime associated with feed issues or weld defects.

ER309L is the essential "problem solver" in any fabrication shop's inventory. Its chemistry, featuring approximately 24% Chromium and 13% Nickel, provides a microstructure capable of absorbing dilution from mild steel base metals without cracking. This makes it the filler of choice for welding 300-series stainless steels to carbon or low-alloy steels. Additionally, the "L" designation indicates a low carbon content (maximum 0.03%), which is critical for preventing carbide precipitation during the welding process, thereby maintaining corrosion resistance in the heat-affected zone (HAZ).

Josef Gas recommends this product for petrochemical piping, power generation components, and heavy equipment repair where buffer layers are required before cladding. The rods are supplied in a durable 10lb tube, ensuring they remain straight and free from contaminants during storage and transport. Each rod is typically stamped or flagged, ensuring full traceability and preventing material mix-ups in multi-alloy environments.

Key Industrial Benefits

  • Dissimilar Joining: The industry standard for welding stainless steel to mild steel.
  • High Purity: Executive series manufacturing reduces trace impurities for X-ray quality welds.
  • Corrosion Resistance: Excellent resistance to oxidation at temperatures up to 1000°C.
  • Traceability: Clear identification on product for quality control compliance.
Additional Information
Packaging Description:10lb tube
Weld Process:TIG
AWS Spec :ER309L
Packaging:10lb tube
Grade:309
Diameter:3.2mm, 3.2mm (1/8")
Polarity:DC+
Brand:Exocor
AWS Classification:ER309L
Material Composition:Stainless Steel (24% Cr, 13% Ni)
Shielding Gas Requirement:100% Argon
Tensile Strength:85,000 PSI (Typical)
----- new values below ----
AWS Classification:ER309L
Material Composition:Stainless Steel (24% Cr, 13% Ni)
Diameter:3.2mm (1/8")
Rod Length:1000mm (39")
Shielding Gas Requirement:100% Argon
Tensile Strength:85,000 PSI (Typical)
Elongation:40% (Typical)
Ferrite Number:12 FN (Typical)
aws-spec:er309l
brand:exocor
diameter:3-2mm
grade:309
packaging:10lb-tube
weld-process:tig

INCLUDED

  • 10 lb Tube of Exocor Executive ER309L 3.2mm TIG Rods
  • Protective Storage Tube

APPLICATIONS

  • Joining 304/304L stainless steel to carbon steel or low-alloy steel
  • First layer cladding (buffer layer) on carbon steel
  • Petrochemical refinery piping and vessels
  • Power generation equipment maintenance
  • General fabrication involving dissimilar metal joints
  • Cryogenic applications requiring toughness

FAQ

ER309L is primarily used for welding dissimilar metals, specifically joining 300-series stainless steel to carbon or low-alloy steels. It is also used for the first layer of stainless cladding on carbon steel.

The 'L' stands for 'Low Carbon'. This indicates a maximum carbon content of 0.03%, which helps prevent carbide precipitation and intergranular corrosion, preserving the corrosion resistance of the weld.

While it can be used, it is not the optimal choice. ER308L is the correct filler for joining 304 to 304. ER309L is specifically designed for dissimilar joints or buffer layers.

For TIG (GTAW) welding with ER309L, 100% Argon is the standard shielding gas. Helium mixtures can be used for greater penetration in thicker sections.

Exocor Executive TIG rods are typically supplied in 1000mm (approx. 39 inches) lengths.

Yes, ER309L generally provides good toughness at cryogenic temperatures, though specific impact testing requirements should be verified against the project specifications.

For 3.2mm (1/8") diameter stainless steel rods, a 10lb tube typically contains approximately 80 to 90 rods, depending on the exact density and length.

The primary difference is carbon content. ER309L has lower carbon (0.03% max) compared to ER309. The lower carbon version is preferred for applications where corrosion resistance after welding is critical.

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