What diameter is the Harris ER70S-6 Mild Steel TIG Alloy .045 X 36 X 10# PKG - E70S6H0 available in, and how do I choose the right size?

The Harris ER70S-6 Mild Steel TIG Alloy .045 X 36 X 10# PKG - E70S6H0 is available in .045 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-6 Mild Steel TIG Alloy .045 X 36 X 10# PKG - E70S6H0?

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-6 Mild Steel TIG Alloy .045 X 36 X 10# PKG - E70S6H0?

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-6 Mild Steel TIG Alloy .045 X 36 X 10# PKG - E70S6H0

Q: What is the Harris ER70S-6 Mild Steel TIG Alloy .045 X 36 X 10# PKG - E70S6H0 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: E70S6H0

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ER70S-6 mild steel TIG (GTAW) welding alloy 0.045 x 36 in. x 10 lb. box

Overview

Harris ER70S-6 Mild Steel TIG Alloy .045 X 36 X 10# PKG - E70S6H0

ER70S-6 mild steel TIG (GTAW) alloy is a general-purpose welding alloy for fabrication of mild steel. It contains more deoxidizers than ER70S-3. The additional deoxidizers also provide better wetting, giving a flatter bead shape and the capability of faster travel speeds. Usually used with 75/25 (argon/carbon dioxide) shielding gas or with higher contents of argon, such as 90/10. It can also be used with 100% carbon dioxide.

Features

General-purpose TIG (GTAW) welding rod for fabrication of mild steel
Contains the highest combination of silicon and manganese as deoxidizers
The deoxidizers provide better wetting, giving a flatter bead shape and the capability of faster travel speeds
Permits high current welding with 100% carbon dioxide shielding gas or 75% argon/25% carbon dioxide shielding gas
Good out-of-position welding using short circuiting transfer
Primarily used for multiple pass on steels where rusty and dirty surfaces are not cleaned before welding
Marked with model number on each end for easy identification after use
Conforms to AISI/AWS A5.18 ER70S-6

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