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S308046-017 - Hobart ER70S-2 Carbon Steel TIG Rod 1/8" x 36"

Packaging: 1lb tube
$26.70/lb $13.35/1lb tube only $13.35/lbSave 50%

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SKU: S308046-017 Categories: ,

OVERVIEW

Hobart ER70S-2 Carbon Steel TIG Welding Rods

The Hobart ER70S-2 is a premium carbon steel cut-length TIG rod designed for the Gas Tungsten Arc Welding (GTAW) process. Identified by the industry shorthand "702" or the AWS classification ER70S-2, this filler metal is engineered with a triple-deoxidized chemistry containing Zirconium, Titanium, and Aluminum. This specific alloy composition makes it the preferred choice for critical welding applications where base metal cleanliness cannot be guaranteed or where the highest weld integrity is required.

With a diameter of 1/8" and a standard length of 36", these rods are suitable for welding heavier wall thicknesses and structural components. The deoxidizers actively scavenge oxygen and impurities from the weld pool, significantly reducing the risk of porosity when welding over mill scale, light rust, or oil. This makes the Hobart ER70S-2 an essential inventory item for maintenance and repair operations (MRO), pipe welding, and pressure vessel fabrication.

Josef Gas supplies this product in convenient tube packaging, ensuring the rods remain straight and protected from atmospheric moisture until use. It meets AWS A5.18 specifications and is compatible with 100% Argon shielding gas for optimal arc stability and puddle control.

Additional Information
Packaging Description:1lb tube
Diameter:1/8"
AWS Spec :ER70S-2
Weld Process:TIG
Polarity:DC+
Length :36"
Material:Carbon Steel
Alloy Type:Triple Deoxidized Steel
Tensile Strength:70,000 psi (min)
----- new values below ----
Length:36"
Material:Carbon Steel
Alloy Type:Triple Deoxidized Steel
Tensile Strength:70,000 PSI (min)
Brand:Hobart
Diameter:1/8"
AWS Spec:ER70S-2
Weld Process:TIG
Polarity:DC-
Packaging Description:1lb tube

INCLUDED

  • 1 x Tube of Hobart ER70S-2 TIG Welding Rods (1/8" Diameter, 36" Length)

APPLICATIONS

  • Process piping and pressure vessels
  • Root pass welding on pipe
  • Structural steel fabrication
  • Maintenance and repair on rusty or oily steel
  • Automotive frames and roll cages
  • General fabrication of mild steel

FAQ

ER stands for Electrode Rod, 70 indicates a minimum tensile strength of 70,000 PSI, S stands for Solid wire, and -2 indicates the specific chemical composition with triple deoxidizers (Ti, Zr, Al).

100% Argon is the standard shielding gas for TIG welding carbon steel with ER70S-2 rods.

Yes, ER70S-2 is specifically designed with deoxidizers to handle light to moderate rust and mill scale better than other carbon steel rods.

ER70S-2 contains Zirconium, Titanium, and Aluminum as deoxidizers, making it better for dirty steel and critical root passes. ER70S-6 uses high Silicon and Manganese for fluidity and is more common in MIG welding.

For a 1/8" (3.2mm) tungsten and rod, a typical amperage range is 100-200 Amps, depending on the base metal thickness and joint configuration.

Carbon steel TIG welding with ER70S-2 is performed using DCEN (Direct Current Electrode Negative), also known as Straight Polarity.

The quantity depends on the weight of the tube (e.g., 1lb, 5lb, or 10lb). Since steel density is constant, a 1lb tube of 1/8" rods contains significantly fewer rods than a 1lb tube of 1/16" rods.

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