AWS A5.18 ER70S-6:

TOKO ER70S-6 is a wire with higher levels of Deoxidizers welding of steels with moderate amounts of scale or rust. (Mn & Si) compared to other carbon steel wires. This wire is suitable for welding of steels with moderate amounts of scale or rust. For Mig welding use Carbon Dioxide or Argon + Co2 or Argon + 2% Oxygen as shielding gases.

ER70S-6, a general purpose welding wire for fabrication of mild steel. 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/CO2) shielding gas or with higher contents of argon, such as 90/10. Can also be used with 100% CO2.

Copper-plated and layer wound. Especially well suited for sheet metal applications or structural plate steels that have moderate amounts of rust oil or mill scale on them Common uses include construction work, farm implement fabrications, general shop applications with poor fit-up or rusty, oily plates, tanks, steel castings or forgings.

Typical applications:

• Repairs on a variety of mild and low alloy steel.

• Small diameter pipe and tubing

• Sheet metal applications

• Root pass pipe welding

Key Features:

1. High levels of manganese and silicon deoxidizers tolerate medium to heavy mill scale surfaces

2. More puddle fluidity,excellent wetting action

3. Storage period: Vacuum packaging less than 1 Year, other packaging less than half year.


  • AWS A5.18 ER70S-6 Typical Chemical Compositions (%)          
    C Mn Si S P Cr Ni Mo Balance
    0.080 1.45 0.85 0.012 0.012 0.020 0.010 0.002 ---


    AWS A5.18 ER70S-6 Typical Mechanical Properties

    Yield Strength (N/mm) Tensile Strength (N/mm2)


    Elongation(%)  Impack Value  (J/℃)
    >430 >540 >25 150/+20℃         90J / -30


Available Sizes and recommended Current Ranges


Diameter (MM)

0.8MM 1.0MM 1.2MM 1.6MM

Current (Amp)

60~200 80~300 120~380 220~550


The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and TOKO Corporation expressly disclaims any liability incurred from any reliance thereon. Typical data and Test results for mechanical properties, deposit or electrode composition and other properties were obtained from a weld produced and tested according to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.