What diameter is the Harris ER70S-2 Mild Steel TIG GTAW Welding Rod .035 10# Box- E70S2F0 available in, and how do I choose the right size?

The Harris ER70S-2 Mild Steel TIG GTAW Welding Rod .035 10# Box- E70S2F0 is available in .035 diameter. Rod diameter selection depends on the base metal thickness and the amperage being used: 1/16 in (1.6 mm) rods suit light gauge up to 3/16 in at 60–130A; 3/32 in (2.4 mm) rods cover 3/16 in–1/2 in material; 1/8 in (3.2 mm) rods are used for heavier sections at 130–250A+. As a general rule, rod diameter should be close to or slightly smaller than base metal thickness.

What shielding gas should I use with the Harris ER70S-2 Mild Steel TIG GTAW Welding Rod .035 10# Box- E70S2F0?

TIG welding shielding gas selection: use pure argon (99.995% purity) for most TIG applications including steel, stainless, aluminum, and titanium. Helium additions (25–75% He/Ar mix) increase heat input and travel speed for heavy section work and aluminum welding where higher deposition is needed. Never use CO2 or mixed gases designed for MIG welding in TIG torches.

What is the AWS classification of the Harris ER70S-2 Mild Steel TIG GTAW Welding Rod .035 10# Box- E70S2F0?

TIG filler rods carry an AWS classification (e.g., ER70S-2 for mild steel, ER308L for 304 stainless, ER4043 for aluminum) that specifies the chemical composition and mechanical properties of the deposited weld metal. Always verify the AWS class when writing or qualifying a Welding Procedure Specification (WPS) for code work.

Harris ER70S-2 Mild Steel TIG GTAW Welding Rod .035 10# Box- E70S2F0

Q: What is the Harris ER70S-2 Mild Steel TIG GTAW Welding Rod .035 10# Box- E70S2F0 used for?

TIG (GTAW) filler rods are used in the gas tungsten arc welding process, where the welder manually feeds the rod into the weld pool while maintaining the arc with the torch. TIG welding produces the highest quality, lowest spatter welds and is the process of choice for precision work on stainless, aluminum, titanium, and exotic alloys.

SKU: E70S2F0

$121.45 ~~$141.20~~

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ER70S-2 mild steel TIG (GTAW) welding alloy 0.035 x 36 in. x 10 lb. box

Overview

Harris ER70S-2 Mild Steel TIG GTAW Welding Rod .035 10# Box- E70S2F0

ER70S-2 mild steel TIG (GTAW) alloy is a premium, triple deoxidized, alloy that provides defect-free, high quality, weld deposits when properly used on most carbon steels. It is ideal for pipe welding. Qualified to AISI/AWS A5.18 & ASME SFA 5.18 ER 70S-2.

Features

Premium, triple deoxidized TIG (GTAW) welding rod for use on most carbon steels
Produces defect-free, high quality welds in most grades of carbon steels
Primarily used for single pass on steels where rusty and dirty surfaces are not cleaned before welding
All-position welding
Marked with model number on each end for easy identification after use
Conforms to AISI/AWS A5.18 & ASME SFA 5.18 ER 70S-2

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