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EX3120000000930TL0 - ER312 Stainless TIG Rod 3/32" - 10lb Tube

Packaging: 10lb tube
$23.12/lb

Package Price:

$231.20/10lb tube

Usually ships within 3-5 business days

OVERVIEW

Exocor ER312 TIG Welding Rods – The Ultimate Maintenance Alloy

The Exocor ER312 TIG Rod (0.093" / 3/32") is a premium stainless steel filler metal designed specifically for the most demanding maintenance and repair applications. Often referred to as the "universal" electrode, the ER312 classification features a chemical composition of approximately 29% Chromium and 9% Nickel. This unique balance creates a two-phase weld deposit containing a substantial percentage of ferrite within an austenite matrix.

This metallurgical structure provides exceptional resistance to weld metal cracking and fissures, even when subjected to high dilution from base metals. It is the ideal choice for welding dissimilar metals, such as joining carbon steel to stainless steel, or for welding steels of unknown composition. Industrial facilities and maintenance shops rely on Exocor ER312 for repairing tools, dies, spring steels, and heavy equipment components where standard fillers would fail.

Available in a convenient 10lb tube, these 36-inch rods are stamped for easy identification and cleaned to ensure high-quality, porosity-free welds. Whether you are repairing a broken shaft, building up a worn gear tooth, or joining incompatible alloys, the Exocor ER312 offers high tensile strength (up to 120,000 psi) and excellent ductility to ensure a lasting repair.

Key Industrial Applications

  • Dissimilar Joints: Perfect for welding mild steel to stainless steel or low-alloy steels.
  • Tool & Die Repair: Excellent for building up worn surfaces on tool steels and dies.
  • Unknown Steels: The safest choice when the base metal composition is unknown.
  • Heavy Equipment: Used for repairing leaf springs, drive shafts, and high-stress components.
Additional Information
Brand:Exocor
Diameter:2.5mm (3/32")
Packaging:10 lb Tube
Weld Process:TIG (GTAW)
Grade:ER312
Position:All Position
AWS Classification:ER312
Rod Length:36"
Material Composition:Stainless Steel (29% Cr, 9% Ni)
Tensile Strength:~120,000 PSI
Shielding Gas:100% Argon
Application Type:Dissimilar Metals, Maintenance Repair, Tool Steel
Packaging Description:10lb tube
Polarity:N/A

INCLUDED

  • 10 lb Tube of Exocor ER312 TIG Welding Rods (3/32" Diameter)
  • Product Label with Heat Number/Lot Traceability

APPLICATIONS

  • Joining dissimilar metals (e.g., Stainless to Carbon Steel)
  • Repairing tool and die steels
  • Welding spring steels and leaf springs
  • Rebuilding worn shafts and gear teeth
  • Maintenance on steels of unknown composition
  • Buffer layers for hardfacing applications

FAQ

ER312 is used for welding dissimilar metals, steels of unknown composition, tool steels, and high-carbon steels. It is known for its high crack resistance and strength.

You should use 100% Argon shielding gas for TIG welding with ER312 rods.

Yes, ER312 is one of the best choices for joining mild steel to stainless steel due to its ability to handle dilution without cracking.

These rods are 0.093 inches in diameter, which is commonly referred to as 3/32" (approx. 2.4mm).

The weld deposit typically has a very high tensile strength of approximately 120,000 psi.

While high-nickel rods are preferred for cast iron, ER312 can be used for certain cast iron repairs or as a buffer layer if nickel rods are unavailable.

This product comes in a 10lb tube.