ER70S-2 Mild Steel TIG Filler Rod – 1.6mm, 2.4mm & 3.2mm – 5kg

ER70S-2 TIG Filler Rod is a premium-quality, copper-coated mild steel TIG wire designed for clean, consistent welding across a wide range of carbon steel and chrome-moly applications.

Available in 1.6mm, 2.4mm and 3.2mm diameters, these 1000mm filler rods are supplied in a 5kg pack, allowing you to select the right diameter for your material thickness, amperage and welding application.

ER70S-2 is a triple-deoxidised TIG filler metal containing additions of aluminium, titanium and zirconium. These deoxidisers make it particularly useful when welding steel where light levels of mill scale, rust or surface contamination may be present, while still delivering excellent results on properly prepared material.

With excellent puddle control and smooth flow characteristics, Hampdon ER70S-2 is a dependable choice for professional fabrication, structural work, repairs and general-purpose steel TIG welding.

Available Diameters

Choose your required diameter from the product options:

• 1.6mm x 1000mm – 5kg Pack
• 2.4mm x 1000mm – 5kg Pack
• 3.2mm x 1000mm – 5kg Pack

Why Choose ER70S-2 TIG Filler Rod?

ER70S-2 is a popular TIG filler metal for carbon and low-alloy steels, particularly where excellent puddle control and strong deoxidising characteristics are required.

Compared with general-purpose ER70S filler metals, the additional deoxidisers in ER70S-2 make it a versatile option for fabrication and repair work while helping produce clean, sound weld deposits.

It's commonly used for mild steel fabrication, structural steel, pipework, automotive work, repairs and selected chrome-moly applications.

Key Features

• ER70S-2 grade TIG filler rod
• Available in 1.6mm, 2.4mm & 3.2mm diameters
• 1000mm rod length
• 5kg pack
• Premium industrial-quality TIG filler metal
• Copper-coated filler rod
• Excellent flow and puddle control
• Triple-deoxidised with aluminium, titanium and zirconium
• Excellent choice for carbon and low-alloy steel
• Suitable for a wide range of professional fabrication and repair applications
• Supplied with batch identification
• Certificate of Conformance available/supplied
• Securely packaged to help protect rods during storage and transport

Suitable Applications

Ideal for TIG welding:

• Mild steel / carbon steel
• Structural steel
• Selected chrome-moly steels
• Steel pipe and tube
• General fabrication
• Automotive fabrication and repairs
• Workshop and maintenance work
• Thin steel sheet and plate

Choosing Your Filler Rod Diameter

The best filler rod diameter depends on material thickness, joint design, amperage and welding technique.

• 1.6mm – Ideal for thinner material, lower-amperage welding and precision TIG work
• 2.4mm – Versatile general-purpose diameter for a wide range of steel TIG welding
• 3.2mm – Suited to heavier material, larger welds and higher-deposition applications

Specifications